Android Packaging Failed

I have following error while packaging
1: E:\Documents\Unreal Projects\roller\Intermediate\Android\APK\src\com\YourCompany\roller\DownloaderActivity.java:497: package R does not exist

2 : Program.Main: ERROR: ERROR: cmd.exe failed with args /c “C:/NVPACK/apache-ant-1.8.2/bin/ant.bat” debug

Logs are attached

MainFrameActions: Packaging (Android (ATC)): [buildconfig] Generating BuildConfig class.
MainFrameActions: Packaging (Android (ATC)): -pre-compile:
MainFrameActions: Packaging (Android (ATC)): -compile:
MainFrameActions: Packaging (Android (ATC)):     [javac] Compiling 72 source files to E:\Documents\Unreal Projects\roller\Intermediate\Android\APK\bin\classes
MainFrameActions: Packaging (Android (ATC)):     [javac] warning: android\content\BroadcastReceiver.class(android\content:BroadcastReceiver.class): major version 51 is newer than 50, the highest major version supported by this compiler.

MainFrameActions: Packaging (Android (ATC)):     [javac] It is recommended that the compiler be upgraded.

MainFrameActions: Packaging (Android (ATC)):     [javac] E:\Documents\Unreal Projects\roller\Intermediate\Android\APK\src\com\YourCompany\roller\DownloaderActivity.java:104: package R does not exist

MainFrameActions: Packaging (Android (ATC)):     [javac] E:\Documents\Unreal Projects\roller\Intermediate\Android\APK\src\com\YourCompany\roller\DownloaderActivity.java:782: package R does not exist
MainFrameActions: Packaging (Android (ATC)):     [javac]         mAverageSpeed.setText(getString(R.string.kilobytes_per_second,
MainFrameActions: Packaging (Android (ATC)):     [javac]                                          ^
MainFrameActions: Packaging (Android (ATC)):     [javac] E:\Documents\Unreal Projects\roller\Intermediate\Android\APK\src\com\YourCompany\roller\DownloaderActivity.java:784: package R does not exist
MainFrameActions: Packaging (Android (ATC)):     [javac]         mTimeRemaining.setText(getString(R.string.time_remaining,
MainFrameActions: Packaging (Android (ATC)):     [javac]                                           ^
MainFrameActions: Packaging (Android (ATC)):     [javac] Note: Some input files use or override a deprecated API.
MainFrameActions: Packaging (Android (ATC)):     [javac] Note: Recompile with -Xlint:deprecation for details.
MainFrameActions: Packaging (Android (ATC)):     [javac] 18 errors
MainFrameActions: Packaging (Android (ATC)):     [javac] 100 warnings
MainFrameActions: Packaging (Android (ATC)): BUILD FAILED
MainFrameActions: Packaging (Android (ATC)): E:\softwares\development\android\sdk\tools\ant\build.xml:716: The following error occurred while executing this line:
MainFrameActions: Packaging (Android (ATC)): E:\softwares\development\android\sdk\tools\ant\build.xml:730: Compile failed; see the compiler error output for details.
MainFrameActions: Packaging (Android (ATC)): Total time: 14 seconds
MainFrameActions: Packaging (Android (ATC)): BuildCommand.Execute: ERROR: BUILD FAILED
MainFrameActions: Packaging (Android (ATC)): Program.Main: ERROR: AutomationTool terminated with exception:
MainFrameActions: Packaging (Android (ATC)): Program.Main: ERROR: Exception in UnrealBuildTool: ERROR: cmd.exe failed with args /c "C:/NVPACK/apache-ant-1.8.2/bin/ant.bat" debug
MainFrameActions: Packaging (Android (ATC)): Stacktrace:    at UnrealBuildTool.Android.UEDeployAndroid.RunCommandLineProgramAndThrowOnError(String WorkingDirectory, St
MainFrameActions: Packaging (Android (ATC)): ring Command, String Params, String OverrideDesc, Boolean bUseShellExecute)
MainFrameActions: Packaging (Android (ATC)):    at UnrealBuildTool.Android.UEDeployAndroid.MakeApk(String ProjectName, String ProjectDirectory, String OutputPath, String EngineDirectory, Boolean bForDistribution, String CookFlavor, Boolean bMakeSeparateApks, Boolean bIncrementalPackage, Boolean bDisallowPackagingDataInApk)
MainFrameActions: Packaging (Android (ATC)):    at UnrealBuildTool.Android.UEDeployAndroid.PrepForUATPackageOrDeploy(String ProjectName, String ProjectDirectory, String ExecutablePath, String EngineDirectory, Boolean bForDistribution, String CookFlavor, Boolean bIsDataDeploy)
MainFrameActions: Packaging (Android (ATC)):    at AndroidPlatform.Package(ProjectParams Params, DeploymentContext SC, Int32 WorkingCL)
MainFrameActions: Packaging (Android (ATC)):    at Project.Package(ProjectParams Params, Int32 WorkingCL)
MainFrameActions: Packaging (Android (ATC)):    at BuildCookRun.DoBuildCookRun(ProjectParams Params)
MainFrameActions: Packaging (Android (ATC)):    at BuildCommand.Execute()
MainFrameActions: Packaging (Android (ATC)):    at AutomationTool.Automation.Execute(List`1 CommandsToExecute, CaselessDictionary`1 Commands)
MainFrameActions: Packaging (Android (ATC)):    at AutomationTool.Automation.Process(String[] CommandLine)
MainFrameActions: Packaging (Android (ATC)):    at AutomationTool.Program.MainProc(Object Param)
MainFrameActions: Packaging (Android (ATC)):    at AutomationTool.InternalUtils.RunSingleInstance(MainProc Main, Object Param)
MainFrameActions: Packaging (Android (ATC)):    at AutomationTool.Program.Main()
MainFrameActions: Packaging (Android (ATC)): Program.Main: ERROR: ERROR: cmd.exe failed with args /c "C:/NVPACK/apache-ant-1.8.2/bin/ant.bat" debug
MainFrameActions: Packaging (Android (ATC)): ProcessManager.KillAll: Trying to kill 0 spawned processes.
MainFrameActions: Packaging (Android (ATC)): Program.Main: AutomationTool exiting with ExitCode=1
MainFrameActions: Packaging (Android (ATC)): Domain_ProcessExit
MainFrameActions: Packaging (Android (ATC)): ProcessManager.KillAll: Trying to kill 0 spawned processes.
MainFrameActions: Packaging (Android (ATC)): copying UAT log files...
MainFrameActions: Packaging (Android (ATC)): RunUAT.bat ERROR: AutomationTool was unable to run successfully.
MainFrameActions: Packaging (Android (ATC)): BUILD FAILED

This may help

I have solved it already thanks :slight_smile: