Information:Gradle tasks [:app:generateDebugSources, :app:generateDebugAndroidTestSources, :app:assembleDebug]
:app:preBuild UP-TO-DATE
:app:preDebugBuild UP-TO-DATE
:app:checkDebugManifest
:app:preReleaseBuild UP-TO-DATE
:app:prepareComAndroidSupportAppcompatV72311Library UP-TO-DATE
:app:prepareComAndroidSupportDesign2311Library UP-TO-DATE
:app:prepareComAndroidSupportRecyclerviewV72311Library UP-TO-DATE
:app:prepareComAndroidSupportSupportV42311Library UP-TO-DATE
:app:prepareComGoogleAndroidGmsPlayServicesBase830Library UP-TO-DATE
:app:prepareComGoogleAndroidGmsPlayServicesBasement830Library UP-TO-DATE
:app:prepareComGoogleAndroidGmsPlayServicesGcm830Library UP-TO-DATE
:app:prepareComGoogleAndroidGmsPlayServicesMeasurement830Library UP-TO-DATE
:app:prepareDebugDependencies
:app:compileDebugAidl UP-TO-DATE
:app:compileDebugRenderscript UP-TO-DATE
:app:generateDebugBuildConfig UP-TO-DATE
:app:generateDebugAssets UP-TO-DATE
:app:mergeDebugAssets UP-TO-DATE
:app:generateDebugResValues UP-TO-DATE
:app:generateDebugResources UP-TO-DATE
:app:mergeDebugResources UP-TO-DATE
:app:processDebugManifest UP-TO-DATE
:app:processDebugResources
Failed to generate resource table for split ''
C:\Users\kkk\AndroidStudioProjects\GCMGCM\app\src\main\res\values\refs.xml
Error:(3, 21) String types not allowed (at 'ic_stat_ic_notification' with value '').
Error:Execution failed for task ':app:processDebugResources'.
> com.android.ide.common.process.ProcessException: org.gradle.process.internal.ExecException: Process 'command 'C:\Users\kkk\AppData\Local\Android\sdk1\build-tools\23.0.2\aapt.exe'' finished with non-zero exit value 1
Information:BUILD FAILED
Information:Total time: 8.039 secs
Information:2 errors
Information:0 warnings
Information:See complete output in console
2가지 오류가 뜨는데 어떻게 고치면되나요?
class에 뜨는오류는
R.string.gcm_defaultSenderId
R.drawable.ic_stat_ic_notification
이 부분에서 R만 빨간줄로 떠요
어떻게 고치면되는지 가르쳐주시면 감사하겠습니다. 아직 초보라 잘 모르겠네요