rust-analyzer failed to discover workspace in vscode

user_8279172 0
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I'm starting to learn the Rust language and I have an issue with rust-analyzer vscode extension.

This picture doesn't provide me with any additional info about root of the problem. I tried to find articles related to my error, but failed. Please help!

UPD1.

Screenshot of directory:

enter image description here

Screenshot of Cargo.toml contents:

enter image description here

guessing_game directory was created with cargo new guessing_game command

rust-analyzer vscode-extensions rust visual-studio-code
2 Answers

I guess you don't have a Cargo.toml file in your project? The rust-analyzer needs a Cargo.toml to detect the workspace.

You could create a new rust project with cargo:

cargo new your-project

cargo will help you create a Cargo.toml file automatically, or you could manually create a Cargo.toml for your existing project.

If this issue keep popping up, perhaps you could check this Github issue for help.

Edit:

You should open your project like this, instead of opening the parent directory of guessing_game. Just try the following steps:

  1. cargo new guessing_game_v2;
  2. then in VSCode, Choose "File" -> "Open Folder.." -> Choose the new guessing_game_v2 folder
  3. and check if it works?

enter image description here

You should make sure that your Cargo.toml is in the root of workspace.

user_57381120

Sorry if this is going to sound vague, but it is only because it happened quickly. I was looking at the bottom pane of vscode.

And think because I have Prettier as well, a dialog popped up saying it doesn't support .rs, Anyway I am not sure how what happened next happened, but the command-palette popped open and it prompted:

me make this file type the default for rust-analyzer

and then boom rustfmt started working.

So then I said hmmm, let's check settings.json

And to my glee I found this...

 "[rust]": {
    "editor.defaultFormatter": "rust-lang.rust-analyzer"
  }

Really hopes this helps anyone trying to become a rustacean!

user_13158570
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