How to Fix RustOwl Installation Issues in VS Code

Conclusion

List the installed RustOwl versions.

$ cargo install --list
rustowl v0.2.0 (/Users/[user-name]/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rustowl-0.2.0/.tmp):
    rustowlc
rustowl v0.2.0:
    rustowl

First, remove the one installed from crates.io (the first line). Next, uninstall using the first path mentioned above by prefixing it with path+file://.

$ cargo uninstall 'registry+https://github.com/rust-lang/crates.io-index#rustowl@0.2.0'
$ cargo uninstall 'path+file:///Users/[user-name]/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/rustowl-0.2.0/.tmp#rustowl@0.2.0'

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RustOwl is now on the Marketplace

It has been released, but an error notification appears in the bottom right during installation. I forgot to take a screenshot, but it was something about the binary not being downloadable or not being able to execute.

https://marketplace.visualstudio.com/items?itemName=cordx56.rustowl-vscode

I've installed it before

I have used this tool before via cargo install and .vsix instead of the marketplace. At that time, there were two RustOwl installations: the one I installed previously and another one in a tmp-like folder (I'm not sure if it was installed there via the marketplace), so they might have been conflicting.

If anyone is facing a similar situation, I hope this helps.