[QUOTE=;696617]
UATHelper: Packaging (Windows (32-bit)): UnrealBuildTool: c1xx: error C3859: virtual memory range for PCH exceeded; please recompile with a command line option of '-Zm552' or greater
UATHelper: Packaging (Windows (32-bit)): UnrealBuildTool: c1xx: fatal error C1076: compiler limit: internal heap limit reached; use /Zm to specify a higher limit
That is the problem, here is an answerhub post regarding it: Error C3859: virtual memory range for PCH exceeded - C++ - Epic Developer Community Forums
Likely a result of upgrading without deleting intermediate files / cache. As I noted above I switched over to the new header style in engine as of 4.15, any left over intermediate files will likely cause problems.
Thanks for getting back to me so quickly. I noticed that answerhub post in my earlier searches. I have followed the instruction there and have had no luck thus far.
I have also completely re-built the project and re-imported my content and config files to no avail. I still get the same message.