4.15 C++ Transition Guide

[anonymous_user_84e009961 (anonymous_user_84e00996)]

@sbnewsom;668214

I create a fresh build of the 4.15 release build from Github. Compiled perfectly. Then I dropped in my plugins including Victory, rebuilt the project files then compiled. Now I get a thousand errors with this error for pretty much every plugin cpp file.

(Filename.cpp(1): error : Expected Filename.h to be first header included.

I noticed that all the CPP’s have Private headers as the first. This never was a problem with my 4.14 engine build, so why is it that 4.15 is rejecting all of my plugins? I tried a fresh Victory plugin install, and same thing. So what changed between 4.14 and 4.15 that it rejects all non-default/custom plugins? I don’t want to spend a week opening and saving every single file just to place it’s primary header file before any other headers. Extremely frustrating. I’ve done followed the build process twice, cleanly and by the book. I’m not a super programmer, but I’m good enough to know something has literally changed that is breaking plugins. Another question is, why isn’t anyone talking about it? Or is it a unique instance on my part.

I would appreciate assistance with this. Despite upgrading the engine at a bad time, I really needed the new Texture Streaming enhancements for the latest build for my publisher.

Thanks!

We are talking about this. Most of the thread is talking about this =x.

4.15 introduced IWYU (Include what you use) when it comes to header includes. The PCH file isn’t used anymore, and the new first header should be the filename.h.

As an example, if you create a new UObject subclass and are referencing and utilizing Actor or Controller pointers, you need to include GameFramework/Actor.h and GameFramework/Controller.h