react-scripts start does not work with lerna run --parallel --stream

[hugomallet]

Since react-scripts 3.4.1
On macos 10.15.3 (not tested elsewhere)

running the command :

yarn lerna run --parallel --stream start

does not start the webpack dev server.

If i remove all lerna arguments it works :

yarn lerna run start

[abrcdf1023]

I have the same issue need rollback to v3.4.0 currently.

[cevr]

From what I can tell, this only happens when the --stream argument is present

[grahamvo]

I'm also seeing this issue. Tried removing --stream and it still isn't working.

[rettgerst]

we've had several issues using lerna exec/run and use the concurrently package in place of lerna exec/run. it requires a bit of setup but overall has more features and fewer bugs.

[grahamvo]

I ended up reverting back to 3.4.0 for the time being until this is fixed.

[hieuxlu]

This change is introduced by commit 7e6d6cd, and can be worked around by commenting out these lines in node_modules/react-scripts/scripts/start.js:168

   
    if (isInteractive || process.env.CI !== 'true') {
      // Gracefully exit when stdin ends
      process.stdin.on('end', function () {
        devServer.close();
        process.exit();
      });
     // Comment out this line
     // process.stdin.resume();
    }

[ddc22]

Facing this same issue. I think lerna maybe triggering an end after running a task in parallel.

[bukharov]

Instead of commenting out the line I set isInteractive to false, but the issue is still there. Setting CI env to true solves it however.