Can't cook/package the project!

Development Programming & Scripting C++
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5

I fixed the problem! So, here is how I did it!
First of all, I read carefully the output log and I found out this line:

UnrealBuildTool: UE4-Engine-Win32-Shipping.lib(Module.Engine.25_of_34.cpp.obj) : error LNK2005: "public: __thiscall FPhysXErrorCallback::FPhysXErrorCallback(void)" (??0FPhysXErrorCallback@@QAE@XZ) already defined in Module.FPSTemplate.cpp.obj

I’ve created a C++ class called “FPhysXErrorCallback”, but then I’ve deleted it. But it wasn’t completely deleted. It was in “Module.FPSTemplate.cpp” as an “include”.

I went into the script and I’ve deleted the line.

Now, the Subway Environment problem:
I’ve deleted the train from the map and I went into the project settings and I’ve checked “Disable CCD” in the Phisics tab.

This is it! Now, I am able to package my game!