microsoft / microsoft/vscode-cpptools

Incorrect "Unable to process IntelliSense for file with same canonicalized path as existing file." message can appear when cpptools crashes

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TypeScript
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Description

Kill cpptools on Mac or maybe other Linux OS's. It don't think it repros on Windows.

Bug: An incorrect warning appears:

LSP: (invoked) textDocument/didOpen: file:///Users/user/test1/test4.h
Unable to process IntelliSense for file with same canonicalized path as existing file. uri: file:///Users/user/test1/test4.h, canonicalized path: /Users/user/test1/test4.h

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First steps

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  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reproducing the issue by killing cpptools on macOS or Linux and observing the textDocument/didOpen warning for test4.h. Trace the crash and file-reopen path that produces the canonicalized-path message, then verify that this incorrect warning no longer appears after recovery.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp, vscode
Domain
tooling
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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