TypeError: argument should be a bytes-like object or ASCII string, not 'list'

[abrahamU]

Hello Dify team

I tried to upload a doc file for knowledge base, after the preprocess, it returned with an error
TypeError: argument should be a bytes-like object or ASCII string, not 'list'

but I saw some content is already inside, this error happens on both self hosted server and cloud server

could you give me a hint on how to solve it?
thanks.

[xingmolu]

@abrahamU Has this problem been solved?

[Nobellcq]

same question, anyone can help

[cumtsd]

同样的问题，请问解决了吗