Hi.
Are you still able to package a clean project for android successfully? if so, no need to reinstall NVPACK then.
I think your problem is the way you created your project.
did you ever code for your project in c++? can those code be built and compiled successfully?
is not there any Error in your Blueprint? I can see one in the logs you sent “Error Blueprint Runtime Error: Accessed None trying to read property K2Node_DynamicCast_As2DSide_Scroller_Character2 from function: ‘ExecuteUbergraph_MainMenu’ from node: Save Game in graph: EventGraph in object: MainMenu”
these are also other problems you have from your logs
[2016.04.28-22.26.10:959][246]MainFrameActions: Packaging (Android (All)): UnrealBuildTool: The system cannot find the path specified.
[2016.04.28-22.26.10:959][246]MainFrameActions: Packaging (Android (All)): UnrealBuildTool: The system cannot find the path specified.
[2016.04.28-22.26.10:959][246]MainFrameActions: Packaging (Android (All)): UnrealBuildTool: The system cannot find the path specified.
[2016.04.28-22.26.10:959][246]MainFrameActions: Packaging (Android (All)): UnrealBuildTool: The system cannot find the path specified.
[2016.04.28-22.26.10:959][246]MainFrameActions: Packaging (Android (All)): UnrealBuildTool: The system cannot find the path specified.
[2016.04.28-22.26.10:959][246]MainFrameActions: Packaging (Android (All)): UnrealBuildTool: The system cannot find the path specified.
[2016.04.28-22.26.10:959][246]MainFrameActions: Packaging (Android (All)): UnrealBuildTool: The system cannot find the path specified.
[2016.04.28-22.26.10:959][246]MainFrameActions: Packaging (Android (All)): UnrealBuildTool: The system cannot find the path specified.
[2016.04.28-22.26.10:959][246]MainFrameActions: Packaging (Android (All)): UnrealBuildTool: The system cannot find the path specified.
[2016.04.28-22.26.10:959][246]MainFrameActions: Packaging (Android (All)): UnrealBuildTool: The system cannot find the path specified.
[2016.04.28-22.26.10:959][246]MainFrameActions: Packaging (Android (All)): UnrealBuildTool: The system cannot find the path specified.
[2016.04.28-22.26.10:959][246]MainFrameActions: Packaging (Android (All)): UnrealBuildTool: The system cannot find the path specified.
[2016.04.28-22.26.10:959][246]MainFrameActions: Packaging (Android (All)): UnrealBuildTool: The system cannot find the path specified.
[2016.04.28-22.26.10:959][246]MainFrameActions: Packaging (Android (All)): UnrealBuildTool: The system cannot find the path specified.
[2016.04.28-22.26.10:959][246]MainFrameActions: Packaging (Android (All)): UnrealBuildTool: The system cannot find the path specified.
[2016.04.28-22.26.10:959][246]MainFrameActions: Packaging (Android (All)): UnrealBuildTool: The system cannot find the path specified.
[2016.04.28-22.26.10:959][246]MainFrameActions: Packaging (Android (All)): UnrealBuildTool: The system cannot find the path specified.
[2016.04.28-22.26.10:959][246]MainFrameActions: Packaging (Android (All)): UnrealBuildTool: The system cannot find the path specified.
[2016.04.28-22.26.10:959][246]MainFrameActions: Packaging (Android (All)): UnrealBuildTool: The system cannot find the path specified.
[2016.04.28-22.26.10:959][246]MainFrameActions: Packaging (Android (All)): UnrealBuildTool: The system cannot find the path specified.
[2016.04.28-22.26.10:959][246]MainFrameActions: Packaging (Android (All)): UnrealBuildTool: The system cannot find the path specified.
[2016.04.28-22.26.11:292][247]MainFrameActions: Packaging (Android (All)): UnrealBuildTool: Building Java with SDK API level 'android-21'
I think the following is the main problem “UnrealBuildTool Exception: ERROR: cmd.exe failed with args /c “F:/NVPACK/apache-ant-1.8.2/bin/ant.bat” debug”
google for this text “UE4 ERROR:NVPACK/apache-ant-1.8.2/bin/ant.bat”
You will find different Kinds of answers. see which one can help you.
if you have any new log send it