[2.0.1] fail to unpack file

[lifetobefore]

I try to use the unpack function for one of my files, but it stops the process in the middle of the unpacking.
I try to get the error message, but the program just went freeze and crashed.

[logue]

An error will occur if the decompression destination directory does not exist or is not ready for writing.
Added proper error in f224b0f.