Fails to start when using rust-analyzer

[gsuuon]

Getting this error on startup when I use the rust-analyzer client engine

Registering progress handler for token rustAnalyzer/startup failed.
Error: Progress handler for token rustAnalyzer/startup already registered
	at Object.onProgress (c:\Users\Steven\.vscode\extensions\rust-lang.rust-0.7.8\node_modules\vscode-jsonrpc\lib\main.js:769:23)

[Xanewok]

Hm, that's weird... Which version of the extension/VSCode are you using? When does this happen?

[seungrye]

Same error message here
I used rust-analyzer extension, and install rls extension with 'rust-analyzer' engine.

I guessed, it conflict to rls and rust-analyzer extension. but error continues after removed 'rust-analyzer extension'.

my vscode info

Version: 1.46.1 (user setup)
Commit: cd9ea6488829f560dc949a8b2fb789f3cdc05f5d
Date: 2020-06-17T21:13:20.174Z
Electron: 7.3.1
Chrome: 78.0.3904.130
Node.js: 12.8.1
V8: 7.8.279.23-electron.0
OS: Windows_NT x64 10.0.19041

rls-vscode version

0.7.8 - 2020-05-13

[michalfita]

I have very similar problem.