Error when trying to update a dataset

[gugoan]

Hi,
Error occurs when trying to update a dataset I just created.

Code Select Expand

Your CJ_CPF_0001_5000 dataset has not been updated. the input stream did not have an expected MIME boundary

What possible causes?

[gugoan]

I found out, it was quite simple. The error occurs when I try to update the set without adding the data to the grid