E7042 Stdlib Validation Errors
read-directory-as-file
cannot read directory as file
When this occurs
`io.read_file()` or similar called with a directory path
Example error message
error[E7042]:
io.read_file(): cannot read directory as file
How to fix
Use `io.read_dir()` to list directory contents. Verify the path points to a file with `io.is_file()`.