4.16.1 Dev build app crashes on start "unfortunately [App] has stopped" on android
After downloading 4.16.1 and updating codeworks from the extras folder, dev build apps installed on my phone from the batch file crash immediately displaying "Application Error unfortunately [App] has stopped". Everything worked on 4.14.3
I started a new blueprints third-person project, optimized for mobile and scalable graphics.
The only changes I made in the project settings was to configure for android and google play(because it's red and red means bad)
Otherwise the ndk is set to android-19. I tried both 'latest' and 'matchndk' for the sdk setting to no avail.
I also tried packaging with and without an OBB file to no avail.
asked Jun 13 '17 at 12:31 AM in Packaging & Deployment
Thanks for the report and I'm sorry for the inconvenience. We are working on this bug now and hope to have a fix for it in 4.16.2. The issue is being tracked with ticket number UE-46353 (the public tracker link should be visible soon).
answered Jun 22 '17 at 06:31 AM
Thanks for the reply. Your Android versions you're seeing this with means you're probably running into issue UE-46539.
The fix will be in a 4.16.3 when we create it and in 4.17, but if you're using source code the fix is easy to apply yourself.
In Engine\Source\Runtime\Renderer\Private\VolumetricFog.cpp you need to replace the two calls to exp2 with FMath::Exp2 and three calls to log2 with FMath::Log2. Android prior to version 4.4.x do not include these functions in the standard library and that is causing the crash on startup.
answered Jul 03 '17 at 01:51 AM
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