The jawa module does not have an exception

[XiaoJie-150]

    from jawa.classloader import ClassLoader
ModuleNotFoundError: No module named 'jawa'

Without more information, he told me that there is no such module and that on line 37 of munch.py

[Pokechu22]

You probably need to install https://github.com/TkTech/Lawu/tree/master from source. (Jawa was renamed to Lawu for legal reasons if I recall correctly, but burger users an older version that still uses the older name).

[XiaoJie-150]

I don't quite understand how to use it

[Pokechu22]

If I recall correctly, you need to download https://github.com/TkTech/Lawu/tree/master (specifically the master branch, not the develop branch) and then run python setup.py install.

[Pokechu22]

If you can't figure out how to install it (or how to run burger after installing it), data for most Minecraft versions is available in https://github.com/Pokechu22/Burger/tree/gh-pages.