dir-compare throws empty error inside VSCode extension

Question

When running the dir-compare package compare() method inside a VSCode Extension it is not succeeding, while it does from a regular node script.

It doesn't seem to output any error. What is happening here? Is there a way to find the underlying error? Is this even possible? How do I proceed?

The code below results in outputting err {}.

const path1 = 'C:/a';
const path2 = 'C:/b';

try
{
    dircompare.compare(path1, path2)
        .then(res => terminal.sendText( 'echo "res ' + JSON.stringify( res ) + '"' ))
        .catch(error => terminal.sendText( 'echo "E2 ' + JSON.stringify( error ) + '"' ));
}
catch(e)
{
    terminal.sendText( 'echo "err ' + JSON.stringify( e ) + '"' );
}

Answer 1

It seems that it is not possible to stringify() and log a caught error object directly, but using err?.message the error can be shown. See: Why are my JS promise catch error objects empty?

The error that appeared was Cannot read properties of undefined (reading compare)

Apparently importing dir-compare directly was not working

import dircompare from 'dir-compare';

Instead importing its methods:

import { compareSync } from 'dir-compare';

Then calling the method directly:

compareSync( path1, path2 );