[BUG] If .bash_profile file on OS X has JAVA_HOME environment variable, Android build fails in UE 4.10

Development Platform & Builds Debugging, Optimization, & Profiling
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I was trying to build an Android APK for Gear VR, and the build process kept failing, stating the following:

MainFrameActions: Packaging (Android (ETC2)): mono: ====1/14/2016 2:13:51 AM====PERFORMING FINAL APK PACKAGE OPERATION================================================
MainFrameActions: Packaging (Android (ETC2)): mono: Making .apk with Ant... (note: it's safe to ignore javac obsolete warnings)
MainFrameActions: Packaging (Android (ETC2)): mono: Error: JAVA_HOME is not defined correctly.
MainFrameActions: Packaging (Android (ETC2)): mono:   We cannot execute $(/System/Library/Java/JavaVirtualMachines/jdk1.8.0_45.jdk/Contents/Home)/bin/java
MainFrameActions: Packaging (Android (ETC2)): mono: UnrealBuildTool Exception: ERROR: /bin/sh failed with args -c '"/Android_TADP//apache-ant-1.8.2/bin/ant" -quiet debug'
MainFrameActions: Packaging (Android (ETC2)): CommandUtils.Run: Run: Took 6.428365s to run mono, ExitCode=5
MainFrameActions: Packaging (Android (ETC2)): BuildCommand.Execute: ERROR: BUILD FAILED
MainFrameActions: Packaging (Android (ETC2)): Program.Main: ERROR: AutomationTool terminated with exception:
MainFrameActions: Packaging (Android (ETC2)): Program.Main: ERROR: Exception in AutomationUtils.Automation: Command failed (Result:5): /Users/Shared/UnrealEngine/4.10/Engine/Binaries/DotNET/UnrealBuildTool.exe "/Users/jonathandaley/Documents/Unreal Projects/VRNavTutorial/VRNavTutorial.uproject" Android Development -prepfordeploy -rocket -nocreatestub -NoHotReloadFromIDE -ignorejunk. See logfile for details: 'UnrealBuildTool-2016.01.14-02.13.44.txt' 
MainFrameActions: Packaging (Android (ETC2)): Stacktrace:   at AutomationTool.CommandUtils.RunAndLog (System.String App, System.String CommandLine, System.String Logfile, Int32 MaxSuccessCode, System.String Input, ERunOptions Options, System.Collections.Generic.Dictionary`2 EnvVars) [0x00000] in <filename unknown>:0 
MainFrameActions: Packaging (Android (ETC2)):   at AutomationTool.CommandUtils.RunAndLog (AutomationTool.CommandEnvironment Env, System.String App, System.String CommandLine, System.String LogName, Int32 MaxSuccessCode, System.String Input, ERunOptions Options, System.Collections.Generic.Dictionary`2 EnvVars) [0x00000] in <filename unknown>:0 
MainFrameActions: Packaging (Android (ETC2)):   at AutomationTool.CommandUtils.RunUBT (AutomationTool.CommandEnvironment Env, System.String UBTExecutable, System.String CommandLine, System.String LogName, System.Collections.Generic.Dictionary`2 EnvVars) [0x00000] in <filename unknown>:0 
MainFrameActions: Packaging (Android (ETC2)):   at AndroidPlatform.PostBuildTarget (AutomationTool.UE4Build Build, System.String ProjectName, System.String UProjectPath, System.String Config) [0x00000] in <filename unknown>:0 
MainFrameActions: Packaging (Android (ETC2)):   at AutomationTool.UE4Build.BuildWithUBT (System.String ProjectName, System.String TargetName, UnrealTargetPlatform TargetPlatform, System.String Config, System.String UprojectPath, Boolean ForceMonolithic, Boolean ForceNonUnity, Boolean ForceDebugInfo, Boolean ForceFlushMac, Boolean DisableXGE, System.String InAddArgs, Boolean ForceUnity, System.Collections.Generic.Dictionary`2 EnvVars) [0x00000] in <filename unknown>:0 
MainFrameActions: Packaging (Android (ETC2)):   at AutomationTool.UE4Build.Build (AutomationTool.BuildAgenda Agenda, Nullable`1 InDeleteBuildProducts, Boolean InUpdateVersionFiles, Boolean InForceNoXGE, Boolean InUseParallelExecutor, Boolean InForceNonUnity, Boo
MainFrameActions: Packaging (Android (ETC2)): lean InForceUnity, Boolean InShowProgress, System.Collections.Generic.Dictionary`2 PlatformEnvVars) [0x00000] in <filename unknown>:0 
MainFrameActions: Packaging (Android (ETC2)):   at Project.Build (BuildCommand Command, AutomationTool.ProjectParams Params, Int32 WorkingCL) [0x00000] in <filename unknown>:0 
MainFrameActions: Packaging (Android (ETC2)):   at BuildCookRun.DoBuildCookRun (AutomationTool.ProjectParams Params) [0x00000] in <filename unknown>:0 
MainFrameActions: Packaging (Android (ETC2)):   at BuildCookRun.ExecuteBuild () [0x00000] in <filename unknown>:0 
MainFrameActions: Packaging (Android (ETC2)):   at BuildCommand.Execute () [0x00000] in <filename unknown>:0 
MainFrameActions: Packaging (Android (ETC2)): Program.Main: AutomationTool exiting with ExitCode=5
MainFrameActions: Packaging (Android (ETC2)): Domain_ProcessExit
MainFrameActions: Packaging (Android (ETC2)): RunUAT ERROR: AutomationTool was unable to run successfully.
PackagingResults:Error: Error Unknown Error

The key part being:

    MainFrameActions: Packaging (Android (ETC2)): mono: Error: JAVA_HOME is not defined correctly.
    MainFrameActions: Packaging (Android (ETC2)): mono:   We cannot execute $(/System/Library/Java/JavaVirtualMachines/jdk1.8.0_45.jdk/Contents/Home)/bin/java
    MainFrameActions: Packaging (Android (ETC2)): mono: UnrealBuildTool Exception: ERROR: /bin/sh failed with args -c '"/Android_TADP//apache-ant-1.8.2/bin/ant" -quiet debug'

After much searching on the AnswerHub, and lots of tinkering, it turns out that if you have a JAVA_HOME environment variable in the .bash_profile file on OS X, the Android build will fail. When I commented out that environment variable, it built just fine.

2

,

I was unable to replicate this. What exactly needs to be within your .bash_profile file in order to make this happen. Does it have to be set up a specific way?

Looking forward to hearing back from you, thanks!

3

Hey ,

We have not heard back from you in a few days, so we are marking this post as Resolved for tracking purposes. If you are still experiencing the issue you reported, please respond to this message with additional information and we will offer further assistance.

Thank you!