proc macro server's version mismatch

[supernovahs]

2024-08-27T15:09:29.374947Z ERROR rust_analyzer::reload: Failed to run proc-macro server from path /Users/supernovahs/.rustup/toolchains/nightly-aarch64-apple-darwin/libexec/rust-analyzer-proc-macro-srv, error: Custom { kind: Other, error: "proc-macro server's api version (5) is newer than rust-analyzer's (4)" }

version rustc 1.82.0-nightly (515395a 2024-08-26)

[lnicola]

You probably need a newer version of r-a.

[aramrw]

I am having the same problem with thiserror but I just ran rustup update 🤔
stable-x86_64-pc-windows-msvc unchanged - rustc 1.80.1 (3f5fd8dd4 2024-08-06)

[Veykril]

You need to update rust-analyzer, not your toolchain. Either way the cause for this error is an outdated rust-analyzer for the running toolchain