Those error messages are something I should change to warnings, it’s just a parsing flaw I worked around instead of fixing properly. It shouldn’t affect the output.
What do you mean by “get the txt file to compile”? If the .txt file exists and isn’t empty, it might be difficult to open in a regular text editor because its encoding is UTF-16-BE. That’s something I overlooked, since I was opening it in a code editor. I’ll see if I can change the output encoding to something more easily opened.
Are you able to output a working .bundle file from your brush?
Edit: Pushed fixes for both of those issues, the output text file will now be normal UTF-8 and those error messages are silenced.