ALE runs the linter in the original path that vim opened with, not the project directory.

[LollipopFt]

  Command History:
(executable check - success) cargo
(finished - exit code 0) 'cmd /s/c "cargo --version"'
<<<OUTPUT STARTS>>>
cargo 1.54.0 (5ae8d74b3 2021-06-22)
<<<OUTPUT ENDS>>>
(finished - exit code 101) 'cmd /s/c "cargo clippy --frozen --message-format=json -q"'
<<<OUTPUT STARTS>>>
error: could not find `Cargo.toml` in `C:\Users\lollipopft` or any parent directory
<<<OUTPUT ENDS>>>
(finished - exit code 101) 'cmd /s/c "cargo clippy --frozen --message-format=json -q"'
<<<OUTPUT STARTS>>>
error: could not find `Cargo.toml` in `C:\Users\lollipopft` or any parent directory
<<<OUTPUT ENDS>>>
(finished - exit code 101) 'cmd /s/c "cargo clippy --frozen --message-format=json -q"'
<<<OUTPUT STARTS>>>
error: could not find `Cargo.toml` in `C:\Users\lollipopft` or any parent directory
<<<OUTPUT ENDS>>>

is there a way to fix this?

[hsanson]

What linter you are trying to use? Posting the whole ALEInfo could help figure out things better.

Depending on the project structure and linter, ALE may not be able to determine the root of a project and require help from the user. See :h ale-root.