Mobile VR packaging problems, missing "libSmtp.so"

Hey all, this problem has been doing my head in. I’ve been trying to package the same project for days now and I’ve always butted up against the same final problem.

09-15 17:03:24.227 21111 21111 D UE4 : [GameActivity] java.lang.UnsatisfiedLinkError: dalvik.system.PathClassLoader[DexPathList[[zip file “/data/app/com.YourCompany.SurveyorAssessment-uO9wSuI7GhPcFb8kHKCYQg==/base.apk”],nativeLibraryDirectories=[/data/user/0/com.YourCompany.SurveyorAssessment, /data/app/com.YourCompany.SurveyorAssessment-uO9wSuI7GhPcFb8kHKCYQg==/lib/arm64, /data/app/com.YourCompany.SurveyorAssessment-uO9wSuI7GhPcFb8kHKCYQg==/base.apk!/lib/arm64-v8a, /system/lib64, /system/product/lib64]]] couldn’t find “libcSmtp.so”

It can’t seem to find “libcSmtp.so” but neither can I, looking it up gives me nothing in the search about what the hell this library is.

I don’t know even the first thing about Android or Java development, so go easy on me here.

  • Developing for the Oculus Quest 2

  • Latest NDK version

  • SDK set to “matchndk”

  • Min SDK and Target are both set to 29 (the current version of the Quest 2)

  • arm64 with OpenGL ES3.1

Any help will be beyond appreciated