Error

The error "macro expansion ignores token" occurs when a macro encounters a token it cannot process, often due to a syntax error in the macro definition or invocation. Check your macro usage in src/main.rs or the relevant file for misplaced punctuation or unsupported tokens within the ! expansion block.

// Ensure your macro invocation is syntactically correct
println!("Hello, world!"); // Correct usage
// Avoid invalid tokens inside the macro
// println!("Hello, world!; // Missing closing paren causes issues

If the error persists, verify that the macro definition in your lib.rs or main.rs correctly handles all expected tokens and does not ignore unexpected ones.

The "macro expansion ignores token" error means Rust's macro system found something it couldn't understand while trying to expand a macro. Think of it like a recipe where a step mentions an ingredient that doesn't exist. You need to check your code for typos or incorrect syntax where you're using the macro.