itch.io

Ah, yeah, that's a kinda tricky one I keep forgetting to explain/add to the archive.

Basically, to fix this:

1.  download the '1.7.1 alpha for source builds' package
2.  create a Source directory under your HammUEr directory
3.  create a HammUEr and HammUErRuntime under that
4.  copy over just the HammUEr.build.cs file from the package to the HammUEr directory, not the rest of the source files
5.  copy over the entire contents of the HammUErRuntime directory

Compiling and packaging your project shouldn't be a problem any more.

Let me know if you do run into any more things or have questions.