android databinding不出现具体错误':app:compileDebugJavaWithJavac'. > Compilation failed;

本文记录了一次在使用databinding框架开发过程中遇到的问题:由于fragment内定义的变量与子布局内的变量重名导致的BR找不到文件错误。通过排查发现是ItemView中存在重名变量所引起。

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最近项目使用databinding框架开发,出现了BR找不到的文件,于是到处检查是否是databinding的变量写错了,花了两大天。之后发现是fragment定义了一个名为viewmodel的变量,fragment布局

fragment里的recyclerview


下的子布局,ItemView里出现重名变量引发的血案。就此记录!


UATHelper: 打包 (Android (ASTC)): > Task :app:compileDebugJavaWithJavac FAILED UATHelper: 打包 (Android (ASTC)): The following annotation processors are not incremental: lifecycle-compiler-2.0.0.jar (androidx.lifecycle:lifecycle-compiler:2.0.0). UATHelper: 打包 (Android (ASTC)): Make sure all annotation processors are incremental to improve your build speed. UATHelper: 打包 (Android (ASTC)): > Task :downloader_library:bundleLibRuntimeToJarDebug UATHelper: 打包 (Android (ASTC)): FAILURE: Build failed with an exception. UATHelper: 打包 (Android (ASTC)): * What went wrong: UATHelper: 打包 (Android (ASTC)): Execution failed for task ':app:compileDebugJavaWithJavac'. UATHelper: 打包 (Android (ASTC)): > Compilation failed; see the compiler error output for details. UATHelper: 打包 (Android (ASTC)): * Try: UATHelper: 打包 (Android (ASTC)): Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights. UATHelper: 打包 (Android (ASTC)): * Get more help at https://help.gradle.org UATHelper: 打包 (Android (ASTC)): BUILD FAILED in 8s UATHelper: 打包 (Android (ASTC)): 40 actionable tasks: 40 executed UATHelper: 打包 (Android (ASTC)): ERROR: cmd.exe failed with args /c "E:\A_MyProjects\A_UE4.27_Projects\VR_DaoZha_Project\Intermediate\Android\gradle\rungradle.bat" :app:bundleDebug UATHelper: 打包 (Android (ASTC)): (see C:\Users\Administrator\AppData\Roaming\Unreal Engine\AutomationTool\Logs\E+ProgramFiles+UE_4.27\Log.txt for full exception trace) UATHelper: 打包 (Android (ASTC)): AutomationTool exiting with ExitCode=1 (Error_Unknown) UATHelper: 打包 (Android (ASTC)): BUILD FAILED PackagingResults: Error: Unknown Error ue4.27打包失败日志,分析原因
06-23
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