Unrealjs pch compile errors

I have a source build of ue4.20 and have set up unrealjs plugin with my project, and the thing is that it was compiling Linux fine before but for some reason now it throws errors and will not build… I have not edited any of the files other than blueprints since then so I am at a complete loss, I have been trying for what is days now to fix this rebuilding over and over and nothing worked anyone else know by chance what to do here?

[1/6] Module.V8.cpp
error: exception handling was disabled in PCH file but is currently enabled
error: definition of macro ‘PLATFORM_EXCEPTIONS_DISABLED’ differs between the precompiled header (‘1’) and the command line (‘0’)

[224/412] Module.V8.gen.1_of_2.cpp error: exception handling was disabled in PCH file but is currently enabled error: definition of macro ‘PLATFORM_EXCEPTIONS_DISABLED’ differs between the precompiled header (‘1’) and the command line (‘0’)

[241/412] Module.V8.gen.2_of_2.cpp error: exception handling was disabled in PCH file but is currently enabled error: definition of macro ‘PLATFORM_EXCEPTIONS_DISABLED’ differs between the precompiled header (‘1’) and the command line (‘0’)