[BUG] MaxListenersExceededWarning: Possible EventEmitter memory leak detected. (v10)

[doberkofler]

Is there an existing issue for this?

• I have searched the existing issues

This issue exists in the latest npm version

• I am using the latest npm

Current Behavior

After upgrading to npm 10, I get the following error message:

$ npm outdated
(node:53918) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 close listeners added to [TLSSocket]. Use emitter.setMaxListeners() to increase limit
(Use `node --trace-warnings ...` to show where the warning was created)

Expected Behavior

no error

Steps To Reproduce

1. In this environment...
2. With this config...
3. Run '...'
4. See error...

Environment

• npm: 10.0.0
• Node.js: v20.6.0
• OS Name: macOS 13.5.1
• System Model Name:
• npm config:

; "user" config from /Users/doberkofler/.npmrc

//registry.npmjs.org/:_authToken = (protected)

; "project" config from /Users/doberkofler/MyDev/ljs_app/trunk/periscope/.npmrc

engine-strict = true

; node bin location = /Users/doberkofler/.nvm/versions/node/v20.6.0/bin/node
; node version = v20.6.0
; npm local prefix = /Users/doberkofler/MyDev/ljs_app/trunk/periscope
; npm version = 10.0.0
; cwd = /Users/doberkofler/MyDev/ljs_app/trunk/periscope
; HOME = /Users/doberkofler
; Run `npm config ls -l` to show all defaults.

[rotu]

Possibly related? 7f81e96 probably not

[lukekarrys]

@doberkofler can you run NODE_OPTIONS=--trace-warnings npm outdated and paste the output here to show where those warnings are originating from?

[lukekarrys]

I haven't been able to reproduce this yet. I've tried running npm outdated on various large install trees with many outdated packages. I also patched the TLSSocket returned from @npmcli/agent with the following code and can only ever see 1 or 2 close events being added per socket.

      const og = socket.on
      socket.on = function (...args) {
        if (args[0] === 'close') {
          console.error('close event on socket added', socket.listenerCount('close'))
        }
        return og.apply(this, args)
      }

@doberkofler A reproduction with a package.json or package-lock.json file would help a lot as well if possible.

[rotu]

I wonder if this has to do with this line in the agents.js connect() function which throws an [Error] (array with a single error) instead of throwing an Error.

https://github.com/npm/agent/blob/4b2c4d1a4d005748cd9bf5066cee29f31c56d11e/lib/agents.js#L126-L128

cli/node_modules/events/events.js

Lines 449 to 468 in d0b7899

	function once(emitter, name) {
	return new Promise(function (resolve, reject) {
	function errorListener(err) {
	emitter.removeListener(name, resolver);
	reject(err);
	}
	function resolver() {
	if (typeof emitter.removeListener === 'function') {
	emitter.removeListener('error', errorListener);
	}
	resolve([].slice.call(arguments));
	};
	eventTargetAgnosticAddListener(emitter, name, resolver, { once: true });
	if (name !== 'error') {
	addErrorHandlerIfEventEmitter(emitter, errorListener, { once: true });
	}
	});
	}

[doberkofler]

This is the requested output and I attached the package-lock.json file.

(node:19864) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 close listeners added to [TLSSocket]. Use emitter.setMaxListeners() to increase limit
    at _addListener (node:events:588:17)
    at TLSSocket.addListener (node:events:606:10)
    at Readable.on (node:internal/streams/readable:904:35)
    at TLSSocket._wrapHandle (node:_tls_wrap:706:8)
    at TLSSocket.reinitializeHandle (node:_tls_wrap:715:22)
    at internalConnectMultiple (node:net:1123:30)
    at Timeout.internalConnectMultipleTimeout (node:net:1687:3)
    at listOnTimeout (node:internal/timers:575:11)
    at process.processTimers (node:internal/timers:514:7)
(node:19864) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 close listeners added to [TLSSocket]. Use emitter.setMaxListeners() to increase limit
    at _addListener (node:events:588:17)
    at TLSSocket.addListener (node:events:606:10)
    at Readable.on (node:internal/streams/readable:904:35)
    at TLSSocket._wrapHandle (node:_tls_wrap:706:8)
    at TLSSocket.reinitializeHandle (node:_tls_wrap:715:22)
    at internalConnectMultiple (node:net:1123:30)
    at Timeout.internalConnectMultipleTimeout (node:net:1687:3)
    at listOnTimeout (node:internal/timers:575:11)
    at process.processTimers (node:internal/timers:514:7)
(node:19864) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 close listeners added to [TLSSocket]. Use emitter.setMaxListeners() to increase limit
    at _addListener (node:events:588:17)
    at TLSSocket.addListener (node:events:606:10)
    at Readable.on (node:internal/streams/readable:904:35)
    at TLSSocket._wrapHandle (node:_tls_wrap:706:8)
    at TLSSocket.reinitializeHandle (node:_tls_wrap:715:22)
    at internalConnectMultiple (node:net:1123:30)
    at Timeout.internalConnectMultipleTimeout (node:net:1687:3)
    at listOnTimeout (node:internal/timers:575:11)
    at process.processTimers (node:internal/timers:514:7)
(node:19864) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 close listeners added to [TLSSocket]. Use emitter.setMaxListeners() to increase limit
    at _addListener (node:events:588:17)
    at TLSSocket.addListener (node:events:606:10)
    at Readable.on (node:internal/streams/readable:904:35)
    at TLSSocket._wrapHandle (node:_tls_wrap:706:8)
    at TLSSocket.reinitializeHandle (node:_tls_wrap:715:22)
    at internalConnectMultiple (node:net:1123:30)
    at Timeout.internalConnectMultipleTimeout (node:net:1687:3)
    at listOnTimeout (node:internal/timers:575:11)
    at process.processTimers (node:internal/timers:514:7)
(node:19864) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 close listeners added to [TLSSocket]. Use emitter.setMaxListeners() to increase limit
    at _addListener (node:events:588:17)
    at TLSSocket.addListener (node:events:606:10)
    at Readable.on (node:internal/streams/readable:904:35)
    at TLSSocket._wrapHandle (node:_tls_wrap:706:8)
    at TLSSocket.reinitializeHandle (node:_tls_wrap:715:22)
    at internalConnectMultiple (node:net:1123:30)
    at Timeout.internalConnectMultipleTimeout (node:net:1687:3)
    at listOnTimeout (node:internal/timers:575:11)
    at process.processTimers (node:internal/timers:514:7)
(node:19864) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 close listeners added to [TLSSocket]. Use emitter.setMaxListeners() to increase limit
    at _addListener (node:events:588:17)
    at TLSSocket.addListener (node:events:606:10)
    at Readable.on (node:internal/streams/readable:904:35)
    at TLSSocket._wrapHandle (node:_tls_wrap:706:8)
    at TLSSocket.reinitializeHandle (node:_tls_wrap:715:22)
    at internalConnectMultiple (node:net:1123:30)
    at Timeout.internalConnectMultipleTimeout (node:net:1687:3)
    at listOnTimeout (node:internal/timers:575:11)
    at process.processTimers (node:internal/timers:514:7)
(node:19864) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 close listeners added to [TLSSocket]. Use emitter.setMaxListeners() to increase limit
    at _addListener (node:events:588:17)
    at TLSSocket.addListener (node:events:606:10)
    at Readable.on (node:internal/streams/readable:904:35)
    at TLSSocket._wrapHandle (node:_tls_wrap:706:8)
    at TLSSocket.reinitializeHandle (node:_tls_wrap:715:22)
    at internalConnectMultiple (node:net:1123:30)
    at Timeout.internalConnectMultipleTimeout (node:net:1687:3)
    at listOnTimeout (node:internal/timers:575:11)
    at process.processTimers (node:internal/timers:514:7)
(node:19864) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 close listeners added to [TLSSocket]. Use emitter.setMaxListeners() to increase limit
    at _addListener (node:events:588:17)
    at TLSSocket.addListener (node:events:606:10)
    at Readable.on (node:internal/streams/readable:904:35)
    at TLSSocket._wrapHandle (node:_tls_wrap:706:8)
    at TLSSocket.reinitializeHandle (node:_tls_wrap:715:22)
    at internalConnectMultiple (node:net:1123:30)
    at Timeout.internalConnectMultipleTimeout (node:net:1687:3)
    at listOnTimeout (node:internal/timers:575:11)
    at process.processTimers (node:internal/timers:514:7)
(node:19864) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 close listeners added to [TLSSocket]. Use emitter.setMaxListeners() to increase limit
    at _addListener (node:events:588:17)
    at TLSSocket.addListener (node:events:606:10)
    at Readable.on (node:internal/streams/readable:904:35)
    at TLSSocket._wrapHandle (node:_tls_wrap:706:8)
    at TLSSocket.reinitializeHandle (node:_tls_wrap:715:22)
    at internalConnectMultiple (node:net:1123:30)
    at Timeout.internalConnectMultipleTimeout (node:net:1687:3)
    at listOnTimeout (node:internal/timers:575:11)
    at process.processTimers (node:internal/timers:514:7)
(node:19864) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 close listeners added to [TLSSocket]. Use emitter.setMaxListeners() to increase limit
    at _addListener (node:events:588:17)
    at TLSSocket.addListener (node:events:606:10)
    at Readable.on (node:internal/streams/readable:904:35)
    at TLSSocket._wrapHandle (node:_tls_wrap:706:8)
    at TLSSocket.reinitializeHandle (node:_tls_wrap:715:22)
    at internalConnectMultiple (node:net:1123:30)
    at Timeout.internalConnectMultipleTimeout (node:net:1687:3)
    at listOnTimeout (node:internal/timers:575:11)
    at process.processTimers (node:internal/timers:514:7)
(node:19864) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 close listeners added to [TLSSocket]. Use emitter.setMaxListeners() to increase limit
    at _addListener (node:events:588:17)
    at TLSSocket.addListener (node:events:606:10)
    at Readable.on (node:internal/streams/readable:904:35)
    at TLSSocket._wrapHandle (node:_tls_wrap:706:8)
    at TLSSocket.reinitializeHandle (node:_tls_wrap:715:22)
    at internalConnectMultiple (node:net:1123:30)
    at Timeout.internalConnectMultipleTimeout (node:net:1687:3)
    at listOnTimeout (node:internal/timers:575:11)
    at process.processTimers (node:internal/timers:514:7)
(node:19864) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 close listeners added to [TLSSocket]. Use emitter.setMaxListeners() to increase limit
    at _addListener (node:events:588:17)
    at TLSSocket.addListener (node:events:606:10)
    at Readable.on (node:internal/streams/readable:904:35)
    at TLSSocket._wrapHandle (node:_tls_wrap:706:8)
    at TLSSocket.reinitializeHandle (node:_tls_wrap:715:22)
    at internalConnectMultiple (node:net:1123:30)
    at Timeout.internalConnectMultipleTimeout (node:net:1687:3)
    at listOnTimeout (node:internal/timers:575:11)
    at process.processTimers (node:internal/timers:514:7)
(node:19864) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 close listeners added to [TLSSocket]. Use emitter.setMaxListeners() to increase limit
    at _addListener (node:events:588:17)
    at TLSSocket.addListener (node:events:606:10)
    at Readable.on (node:internal/streams/readable:904:35)
    at TLSSocket._wrapHandle (node:_tls_wrap:706:8)
    at TLSSocket.reinitializeHandle (node:_tls_wrap:715:22)
    at internalConnectMultiple (node:net:1123:30)
    at Timeout.internalConnectMultipleTimeout (node:net:1687:3)
    at listOnTimeout (node:internal/timers:575:11)
    at process.processTimers (node:internal/timers:514:7)
(node:19864) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 close listeners added to [TLSSocket]. Use emitter.setMaxListeners() to increase limit
    at _addListener (node:events:588:17)
    at TLSSocket.addListener (node:events:606:10)
    at Readable.on (node:internal/streams/readable:904:35)
    at TLSSocket._wrapHandle (node:_tls_wrap:706:8)
    at TLSSocket.reinitializeHandle (node:_tls_wrap:715:22)
    at internalConnectMultiple (node:net:1123:30)
    at Timeout.internalConnectMultipleTimeout (node:net:1687:3)
    at listOnTimeout (node:internal/timers:575:11)
    at process.processTimers (node:internal/timers:514:7)
(node:19864) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 close listeners added to [TLSSocket]. Use emitter.setMaxListeners() to increase limit
    at _addListener (node:events:588:17)
    at TLSSocket.addListener (node:events:606:10)
    at Readable.on (node:internal/streams/readable:904:35)
    at TLSSocket._wrapHandle (node:_tls_wrap:706:8)
    at TLSSocket.reinitializeHandle (node:_tls_wrap:715:22)
    at internalConnectMultiple (node:net:1123:30)
    at Timeout.internalConnectMultipleTimeout (node:net:1687:3)
    at listOnTimeout (node:internal/timers:575:11)
    at process.processTimers (node:internal/timers:514:7)
(node:19864) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 close listeners added to [TLSSocket]. Use emitter.setMaxListeners() to increase limit
    at _addListener (node:events:588:17)
    at TLSSocket.addListener (node:events:606:10)
    at Readable.on (node:internal/streams/readable:904:35)
    at TLSSocket._wrapHandle (node:_tls_wrap:706:8)
    at TLSSocket.reinitializeHandle (node:_tls_wrap:715:22)
    at internalConnectMultiple (node:net:1123:30)
    at Timeout.internalConnectMultipleTimeout (node:net:1687:3)
    at listOnTimeout (node:internal/timers:575:11)
    at process.processTimers (node:internal/timers:514:7)
(node:19864) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 close listeners added to [TLSSocket]. Use emitter.setMaxListeners() to increase limit
    at _addListener (node:events:588:17)
    at TLSSocket.addListener (node:events:606:10)
    at Readable.on (node:internal/streams/readable:904:35)
    at TLSSocket._wrapHandle (node:_tls_wrap:706:8)
    at TLSSocket.reinitializeHandle (node:_tls_wrap:715:22)
    at internalConnectMultiple (node:net:1123:30)
    at Timeout.internalConnectMultipleTimeout (node:net:1687:3)
    at listOnTimeout (node:internal/timers:575:11)
    at process.processTimers (node:internal/timers:514:7)
(node:19864) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 close listeners added to [TLSSocket]. Use emitter.setMaxListeners() to increase limit
    at _addListener (node:events:588:17)
    at TLSSocket.addListener (node:events:606:10)
    at Readable.on (node:internal/streams/readable:904:35)
    at TLSSocket._wrapHandle (node:_tls_wrap:706:8)
    at TLSSocket.reinitializeHandle (node:_tls_wrap:715:22)
    at internalConnectMultiple (node:net:1123:30)
    at Timeout.internalConnectMultipleTimeout (node:net:1687:3)
    at listOnTimeout (node:internal/timers:575:11)
    at process.processTimers (node:internal/timers:514:7)
(node:19864) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 close listeners added to [TLSSocket]. Use emitter.setMaxListeners() to increase limit
    at _addListener (node:events:588:17)
    at TLSSocket.addListener (node:events:606:10)
    at Readable.on (node:internal/streams/readable:904:35)
    at TLSSocket._wrapHandle (node:_tls_wrap:706:8)
    at TLSSocket.reinitializeHandle (node:_tls_wrap:715:22)
    at internalConnectMultiple (node:net:1123:30)
    at Timeout.internalConnectMultipleTimeout (node:net:1687:3)
    at listOnTimeout (node:internal/timers:575:11)
    at process.processTimers (node:internal/timers:514:7)
(node:19864) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 close listeners added to [TLSSocket]. Use emitter.setMaxListeners() to increase limit
    at _addListener (node:events:588:17)
    at TLSSocket.addListener (node:events:606:10)
    at Readable.on (node:internal/streams/readable:904:35)
    at TLSSocket._wrapHandle (node:_tls_wrap:706:8)
    at TLSSocket.reinitializeHandle (node:_tls_wrap:715:22)
    at internalConnectMultiple (node:net:1123:30)
    at Timeout.internalConnectMultipleTimeout (node:net:1687:3)
    at listOnTimeout (node:internal/timers:575:11)
    at process.processTimers (node:internal/timers:514:7)
(node:19864) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 close listeners added to [TLSSocket]. Use emitter.setMaxListeners() to increase limit
    at _addListener (node:events:588:17)
    at TLSSocket.addListener (node:events:606:10)
    at Readable.on (node:internal/streams/readable:904:35)
    at TLSSocket._wrapHandle (node:_tls_wrap:706:8)
    at TLSSocket.reinitializeHandle (node:_tls_wrap:715:22)
    at internalConnectMultiple (node:net:1123:30)
    at Timeout.internalConnectMultipleTimeout (node:net:1687:3)
    at listOnTimeout (node:internal/timers:575:11)
    at process.processTimers (node:internal/timers:514:7)
(node:19864) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 close listeners added to [TLSSocket]. Use emitter.setMaxListeners() to increase limit
    at _addListener (node:events:588:17)
    at TLSSocket.addListener (node:events:606:10)
    at Readable.on (node:internal/streams/readable:904:35)
    at TLSSocket._wrapHandle (node:_tls_wrap:706:8)
    at TLSSocket.reinitializeHandle (node:_tls_wrap:715:22)
    at internalConnectMultiple (node:net:1123:30)
    at Timeout.internalConnectMultipleTimeout (node:net:1687:3)
    at listOnTimeout (node:internal/timers:575:11)
    at process.processTimers (node:internal/timers:514:7)
(node:19864) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 close listeners added to [TLSSocket]. Use emitter.setMaxListeners() to increase limit
    at _addListener (node:events:588:17)
    at TLSSocket.addListener (node:events:606:10)
    at Readable.on (node:internal/streams/readable:904:35)
    at TLSSocket._wrapHandle (node:_tls_wrap:706:8)
    at TLSSocket.reinitializeHandle (node:_tls_wrap:715:22)
    at internalConnectMultiple (node:net:1123:30)
    at Timeout.internalConnectMultipleTimeout (node:net:1687:3)
    at listOnTimeout (node:internal/timers:575:11)
    at process.processTimers (node:internal/timers:514:7)
(node:19864) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 close listeners added to [TLSSocket]. Use emitter.setMaxListeners() to increase limit
    at _addListener (node:events:588:17)
    at TLSSocket.addListener (node:events:606:10)
    at Readable.on (node:internal/streams/readable:904:35)
    at TLSSocket._wrapHandle (node:_tls_wrap:706:8)
    at TLSSocket.reinitializeHandle (node:_tls_wrap:715:22)
    at internalConnectMultiple (node:net:1123:30)
    at Timeout.internalConnectMultipleTimeout (node:net:1687:3)
    at listOnTimeout (node:internal/timers:575:11)
    at process.processTimers (node:internal/timers:514:7)
(node:19864) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 close listeners added to [TLSSocket]. Use emitter.setMaxListeners() to increase limit
    at _addListener (node:events:588:17)
    at TLSSocket.addListener (node:events:606:10)
    at Readable.on (node:internal/streams/readable:904:35)
    at TLSSocket._wrapHandle (node:_tls_wrap:706:8)
    at TLSSocket.reinitializeHandle (node:_tls_wrap:715:22)
    at internalConnectMultiple (node:net:1123:30)
    at Timeout.internalConnectMultipleTimeout (node:net:1687:3)
    at listOnTimeout (node:internal/timers:575:11)
    at process.processTimers (node:internal/timers:514:7)
(node:19864) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 close listeners added to [TLSSocket]. Use emitter.setMaxListeners() to increase limit
    at _addListener (node:events:588:17)
    at TLSSocket.addListener (node:events:606:10)
    at Readable.on (node:internal/streams/readable:904:35)
    at TLSSocket._wrapHandle (node:_tls_wrap:706:8)
    at TLSSocket.reinitializeHandle (node:_tls_wrap:715:22)
    at internalConnectMultiple (node:net:1123:30)
    at Timeout.internalConnectMultipleTimeout (node:net:1687:3)
    at listOnTimeout (node:internal/timers:575:11)
    at process.processTimers (node:internal/timers:514:7)
(node:19864) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 close listeners added to [TLSSocket]. Use emitter.setMaxListeners() to increase limit
    at _addListener (node:events:588:17)
    at TLSSocket.addListener (node:events:606:10)
    at Readable.on (node:internal/streams/readable:904:35)
    at TLSSocket._wrapHandle (node:_tls_wrap:706:8)
    at TLSSocket.reinitializeHandle (node:_tls_wrap:715:22)
    at internalConnectMultiple (node:net:1123:30)
    at Timeout.internalConnectMultipleTimeout (node:net:1687:3)
    at listOnTimeout (node:internal/timers:575:11)
    at process.processTimers (node:internal/timers:514:7)
(node:19864) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 close listeners added to [TLSSocket]. Use emitter.setMaxListeners() to increase limit
    at _addListener (node:events:588:17)
    at TLSSocket.addListener (node:events:606:10)
    at Readable.on (node:internal/streams/readable:904:35)
    at TLSSocket._wrapHandle (node:_tls_wrap:706:8)
    at TLSSocket.reinitializeHandle (node:_tls_wrap:715:22)
    at internalConnectMultiple (node:net:1123:30)
    at Timeout.internalConnectMultipleTimeout (node:net:1687:3)
    at listOnTimeout (node:internal/timers:575:11)
    at process.processTimers (node:internal/timers:514:7)
(node:19864) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 close listeners added to [TLSSocket]. Use emitter.setMaxListeners() to increase limit
    at _addListener (node:events:588:17)
    at TLSSocket.addListener (node:events:606:10)
    at Readable.on (node:internal/streams/readable:904:35)
    at TLSSocket._wrapHandle (node:_tls_wrap:706:8)
    at TLSSocket.reinitializeHandle (node:_tls_wrap:715:22)
    at internalConnectMultiple (node:net:1123:30)
    at Timeout.internalConnectMultipleTimeout (node:net:1687:3)
    at listOnTimeout (node:internal/timers:575:11)
    at process.processTimers (node:internal/timers:514:7)
(node:19864) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 close listeners added to [TLSSocket]. Use emitter.setMaxListeners() to increase limit
    at _addListener (node:events:588:17)
    at TLSSocket.addListener (node:events:606:10)
    at Readable.on (node:internal/streams/readable:904:35)
    at TLSSocket._wrapHandle (node:_tls_wrap:706:8)
    at TLSSocket.reinitializeHandle (node:_tls_wrap:715:22)
    at internalConnectMultiple (node:net:1123:30)
    at Timeout.internalConnectMultipleTimeout (node:net:1687:3)
    at listOnTimeout (node:internal/timers:575:11)
    at process.processTimers (node:internal/timers:514:7)
(node:19864) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 close listeners added to [TLSSocket]. Use emitter.setMaxListeners() to increase limit
    at _addListener (node:events:588:17)
    at TLSSocket.addListener (node:events:606:10)
    at Readable.on (node:internal/streams/readable:904:35)
    at TLSSocket._wrapHandle (node:_tls_wrap:706:8)
    at TLSSocket.reinitializeHandle (node:_tls_wrap:715:22)
    at internalConnectMultiple (node:net:1123:30)
    at Timeout.internalConnectMultipleTimeout (node:net:1687:3)
    at listOnTimeout (node:internal/timers:575:11)
    at process.processTimers (node:internal/timers:514:7)
(node:19864) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 close listeners added to [TLSSocket]. Use emitter.setMaxListeners() to increase limit
    at _addListener (node:events:588:17)
    at TLSSocket.addListener (node:events:606:10)
    at Readable.on (node:internal/streams/readable:904:35)
    at TLSSocket._wrapHandle (node:_tls_wrap:706:8)
    at TLSSocket.reinitializeHandle (node:_tls_wrap:715:22)
    at internalConnectMultiple (node:net:1123:30)
    at Timeout.internalConnectMultipleTimeout (node:net:1687:3)
    at listOnTimeout (node:internal/timers:575:11)
    at process.processTimers (node:internal/timers:514:7)
(node:19864) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 close listeners added to [TLSSocket]. Use emitter.setMaxListeners() to increase limit
    at _addListener (node:events:588:17)
    at TLSSocket.addListener (node:events:606:10)
    at Readable.on (node:internal/streams/readable:904:35)
    at TLSSocket._wrapHandle (node:_tls_wrap:706:8)
    at TLSSocket.reinitializeHandle (node:_tls_wrap:715:22)
    at internalConnectMultiple (node:net:1123:30)
    at Timeout.internalConnectMultipleTimeout (node:net:1687:3)
    at listOnTimeout (node:internal/timers:575:11)
    at process.processTimers (node:internal/timers:514:7)
(node:19864) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 close listeners added to [TLSSocket]. Use emitter.setMaxListeners() to increase limit
    at _addListener (node:events:588:17)
    at TLSSocket.addListener (node:events:606:10)
    at Readable.on (node:internal/streams/readable:904:35)
    at TLSSocket._wrapHandle (node:_tls_wrap:706:8)
    at TLSSocket.reinitializeHandle (node:_tls_wrap:715:22)
    at internalConnectMultiple (node:net:1123:30)
    at Timeout.internalConnectMultipleTimeout (node:net:1687:3)
    at listOnTimeout (node:internal/timers:575:11)
    at process.processTimers (node:internal/timers:514:7)
(node:19864) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 close listeners added to [TLSSocket]. Use emitter.setMaxListeners() to increase limit
    at _addListener (node:events:588:17)
    at TLSSocket.addListener (node:events:606:10)
    at Readable.on (node:internal/streams/readable:904:35)
    at TLSSocket._wrapHandle (node:_tls_wrap:706:8)
    at TLSSocket.reinitializeHandle (node:_tls_wrap:715:22)
    at internalConnectMultiple (node:net:1123:30)
    at Timeout.internalConnectMultipleTimeout (node:net:1687:3)
    at listOnTimeout (node:internal/timers:575:11)
    at process.processTimers (node:internal/timers:514:7)
(node:19864) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 close listeners added to [TLSSocket]. Use emitter.setMaxListeners() to increase limit
    at _addListener (node:events:588:17)
    at TLSSocket.addListener (node:events:606:10)
    at Readable.on (node:internal/streams/readable:904:35)
    at TLSSocket._wrapHandle (node:_tls_wrap:706:8)
    at TLSSocket.reinitializeHandle (node:_tls_wrap:715:22)
    at internalConnectMultiple (node:net:1123:30)
    at Timeout.internalConnectMultipleTimeout (node:net:1687:3)
    at listOnTimeout (node:internal/timers:575:11)
    at process.processTimers (node:internal/timers:514:7)
(node:19864) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 close listeners added to [TLSSocket]. Use emitter.setMaxListeners() to increase limit
    at _addListener (node:events:588:17)
    at TLSSocket.addListener (node:events:606:10)
    at Readable.on (node:internal/streams/readable:904:35)
    at TLSSocket._wrapHandle (node:_tls_wrap:706:8)
    at TLSSocket.reinitializeHandle (node:_tls_wrap:715:22)
    at internalConnectMultiple (node:net:1123:30)
    at Timeout.internalConnectMultipleTimeout (node:net:1687:3)
    at listOnTimeout (node:internal/timers:575:11)
    at process.processTimers (node:internal/timers:514:7)
(node:19864) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 close listeners added to [TLSSocket]. Use emitter.setMaxListeners() to increase limit
    at _addListener (node:events:588:17)
    at TLSSocket.addListener (node:events:606:10)
    at Readable.on (node:internal/streams/readable:904:35)
    at TLSSocket._wrapHandle (node:_tls_wrap:706:8)
    at TLSSocket.reinitializeHandle (node:_tls_wrap:715:22)
    at internalConnectMultiple (node:net:1123:30)
    at Timeout.internalConnectMultipleTimeout (node:net:1687:3)
    at listOnTimeout (node:internal/timers:575:11)
    at process.processTimers (node:internal/timers:514:7)
(node:19864) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 close listeners added to [TLSSocket]. Use emitter.setMaxListeners() to increase limit
    at _addListener (node:events:588:17)
    at TLSSocket.addListener (node:events:606:10)
    at Readable.on (node:internal/streams/readable:904:35)
    at TLSSocket._wrapHandle (node:_tls_wrap:706:8)
    at TLSSocket.reinitializeHandle (node:_tls_wrap:715:22)
    at internalConnectMultiple (node:net:1123:30)
    at Timeout.internalConnectMultipleTimeout (node:net:1687:3)
    at listOnTimeout (node:internal/timers:575:11)
    at process.processTimers (node:internal/timers:514:7)
(node:19864) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 close listeners added to [TLSSocket]. Use emitter.setMaxListeners() to increase limit
    at _addListener (node:events:588:17)
    at TLSSocket.addListener (node:events:606:10)
    at Readable.on (node:internal/streams/readable:904:35)
    at TLSSocket._wrapHandle (node:_tls_wrap:706:8)
    at TLSSocket.reinitializeHandle (node:_tls_wrap:715:22)
    at internalConnectMultiple (node:net:1123:30)
    at Timeout.internalConnectMultipleTimeout (node:net:1687:3)
    at listOnTimeout (node:internal/timers:575:11)
    at process.processTimers (node:internal/timers:514:7)
(node:19864) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 close listeners added to [TLSSocket]. Use emitter.setMaxListeners() to increase limit
    at _addListener (node:events:588:17)
    at TLSSocket.addListener (node:events:606:10)
    at Readable.on (node:internal/streams/readable:904:35)
    at TLSSocket._wrapHandle (node:_tls_wrap:706:8)
    at TLSSocket.reinitializeHandle (node:_tls_wrap:715:22)
    at internalConnectMultiple (node:net:1123:30)
    at Timeout.internalConnectMultipleTimeout (node:net:1687:3)
    at listOnTimeout (node:internal/timers:575:11)
    at process.processTimers (node:internal/timers:514:7)
(node:19864) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 close listeners added to [TLSSocket]. Use emitter.setMaxListeners() to increase limit
    at _addListener (node:events:588:17)
    at TLSSocket.addListener (node:events:606:10)
    at Readable.on (node:internal/streams/readable:904:35)
    at TLSSocket._wrapHandle (node:_tls_wrap:706:8)
    at TLSSocket.reinitializeHandle (node:_tls_wrap:715:22)
    at internalConnectMultiple (node:net:1123:30)
    at Timeout.internalConnectMultipleTimeout (node:net:1687:3)
    at listOnTimeout (node:internal/timers:575:11)
    at process.processTimers (node:internal/timers:514:7)
(node:19864) MaxListenersExceededWarning: Possible EventEmitter memory leak detected. 11 close listeners added to [TLSSocket]. Use emitter.setMaxListeners() to increase limit
    at _addListener (node:events:588:17)
    at TLSSocket.addListener (node:events:606:10)
    at Readable.on (node:internal/streams/readable:904:35)
    at TLSSocket._wrapHandle (node:_tls_wrap:706:8)
    at TLSSocket.reinitializeHandle (node:_tls_wrap:715:22)
    at internalConnectMultiple (node:net:1123:30)
    at Timeout.internalConnectMultipleTimeout (node:net:1687:3)
    at listOnTimeout (node:internal/timers:575:11)
    at process.processTimers (node:internal/timers:514:7)
Package         Current  Wanted        Latest  Location                     Depended by
@types/select2    3.5.6   3.5.6        4.0.58  node_modules/@types/select2  periscope
chalk             4.1.2   4.1.2         5.3.0  node_modules/chalk           periscope
dropzone          5.9.3   5.9.3  6.0.0-beta.2  node_modules/dropzone        periscope
select2           3.5.1   3.5.1    4.1.0-rc.0  node_modules/select2         periscope

package-lock.json.zip

[rotu]

Possibly also this Promise that can never resolve: https://github.com/npm/agent/blob/c51096b1903422fe14011871add7c66f9ba27189/lib/util.js#L23