Hey XxDANitxX,
In your log:
Visual C++ 2015 toolchain does not appear to be correctly installed. Please verify that "Common Tools for Visual C++ 2015" was selected when installing Visual Studio 2015.
You can verify this by using the Windows key on your keyboard or by hitting the Start Button. The, search for “Control Panel” and select it. Inside of Control Panel, search on the top right search bar, “Add or Remove Programs” then select it.
In that list, search for Visual Studio 2015 and select it. With it selected, you can click the “Modify” button. This will bring up the Visual Studio installer window. Choose to “Modify” it again and go through the steps and make sure that “Common tools” is checked. If it is not, check it and then continue the installer to install it. When that is done, you can try to package again.