InitializeParams: invalid type: integer 1, expected a boolean

[lnicola]

On today's release, on Code 1.52.1:

Failed to deserialize InitializeParams: invalid type: integer `1`, expected a boolean; 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[Info  - 17:30:44] Connection to server got closed. Server will restart.
Failed to deserialize InitializeParams: invalid type: integer `1`, expected a boolean; 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[Error - 17:30:45] Connection to server got closed. Server will not be restarted.

Originally posted by @neilyoung in #6414 (comment)

[neilyoung]

Wait... From a former issue #6433 I had rust-analyzer.serverPath set to my own compilation of the analyzer. But this version was from another branch no-eager-fix from Nov 4. So I checked out master, pulled and recompiled and the issue is gone.

Sorry.

[stsquad]

I'm seeing this with the 2021-06-21 of rust-analyzer

[lnicola]

@stsquad are you using Code?

[stsquad]

@lnicola no - this is with Emacs's lsp-mode. Is this a change to the upstream message spec?

This has been closed but it was awhile ago: emacs-lsp/lsp-mode#1373

[lnicola]

Yeah, it sounds like a protocol mismatch. @flodiebold uses lsp-mode and might know which version works.

[flodiebold]

I've only seen that with very old lsp-mode versions. My lsp-mode version was from March, but I also just checked current master and it's working. If you're encountering this with current lsp-mode, you should probably report a bug there.

[stsquad]

@flodiebold I guess I was unlucky and it was a transient bug - updating to lsp-mode 20210624.1915 fixed it and now I have working rust-analyzer inside rustic-mode.