unknown error while packaging 4.15

i said that i already verfied but it doesn t work
and it might be the fmod plugin because when i disable it it works

noooo why ???!!! ;(

anyway thank you so much for your answers

Then it is the fmod plugin, I can’t help you with that, sorry.

I think that it is not the fmod plugin because i have the same error when i create a c++ class without plugin

This should solve your answer: I can't compile/build new c++ project - C++ - Unreal Engine Forums