Android Studio 升级到3.2.1版本，今天自定义ProgressBar的style的时候，我按照往常的方式编写代码，但是始终编译不过。下图是错误日志
Android resource linking failed Output: D:\workspaceAS\ScanAll\app\build\intermediates\incremental\mergeDebugResources\merged.dir\values\values.xml:4148: error: style attribute 'attr/progressDrawable (aka com.wujie.scanall:attr/progressDrawable)' not found. error: failed linking references. Command: C:\Users\Administrator\.gradle\caches\transforms-1\files-1.1\aapt2-3.2.1-4818971-windows.jar\697631d1c7974971c371d1bf31e811db\aapt2-3.2.1-4818971-windows\aapt2.exe link -I\ D:\software\sdk\sdk\platforms\android-28\android.jar\ --manifest\ D:\workspaceAS\ScanAll\app\build\intermediates\merged_manifests\debug\processDebugManifest\merged\AndroidManifest.xml\ -o\ D:\workspaceAS\ScanAll\app\build\intermediates\processed_res\debug\processDebugResources\out\resources-debug.ap_\ -R\ @D:\workspaceAS\ScanAll\app\build\intermediates\incremental\processDebugResources\resources-list-for-resources-debug.ap_.txt\ --auto-add-overlay\ --java\ D:\workspaceAS\ScanAll\app\build\generated\not_namespaced_r_class_sources\debug\processDebugResources\r\ --custom-package\ com.wujie.scanall\ -0\ apk\ --output-text-symbols\ D:\workspaceAS\ScanAll\app\build\intermediates\symbols\debug\R.txt\ --no-version-vectors Daemon: AAPT2 aapt2-3.2.1-4818971-windows Daemon #0解决方法： 在attrs.xml中编写如下代码即可
<?xml version="1.0" encoding="utf-8"?> <resources> <declare-styleable name="Theme"> <attr name="progressDrawable" format="reference"/> <attr name="indeterminateDrawable" format="reference"/> </declare-styleable> </resources>