This message appears. What needs to be done next?
"thread '' panicked at 'Unsupported output extension None', src\file_output_util.rs:30:13
note: run with RUST_BACKTRACE=1 environment variable to display a backtrace
thread 'main' panicked at 'called Result::unwrap() on an Err value: Any { .. }', src/main.rs:43:37"
This message appears. What needs to be done next? "thread '' panicked at 'Unsupported output extension None', src\file_output_util.rs:30:13
note: run with
RUST_BACKTRACE=1
environment variable to display a backtrace thread 'main' panicked at 'calledResult::unwrap()
on anErr
value: Any { .. }', src/main.rs:43:37"Thank you very much in advance.