最近遇到一個合作專案，公司的專案是依賴于Androidx，合作公司的專案是依賴于support，需要我將公司專案回退到依賴于support，我把gradle.properties中關于參考Androidx的兩個屬性
android.useAndroidX=true
android.enableJetifier=true
改成了false，并且將app下的build.gradle中依賴于Androidx的庫一一替換成support的庫，將專案中所有關于參考Androidx的地方改成了support對應的，最后編譯專案沒問題，run的時候還是會報錯，提示
Execution failed for task ':testlibrary:generateDebugRFile'.
> This project uses AndroidX dependencies, but the 'android.useAndroidX' property is not enabled. Set this property to true in the gradle.properties file and retry.
The following AndroidX dependencies are detected: androidx.appcompat:appcompat:1.1.0, androidx.versionedparcelable:versionedparcelable:1.1.0, androidx.fragment:fragment:1.1.0, androidx.core:core:1.2.0, androidx.annotation:annotation-experimental:1.0.0, androidx.customview:customview:1.0.0, com.google.android.material:material:1.2.1, androidx.interpolator:interpolator:1.0.0, androidx.loader:loader:1.0.0, androidx.viewpager2:viewpager2:1.0.0, androidx.activity:activity:1.0.0, androidx.drawerlayout:drawerlayout:1.0.0, androidx.collection:collection:1.1.0, androidx.viewpager:viewpager:1.0.0, androidx.cardview:cardview:1.0.0, androidx.arch.core:core-common:2.1.0, androidx.savedstate:savedstate:1.0.0, androidx.annotation:annotation:1.1.0, androidx.lifecycle:lifecycle-common:2.1.0, androidx.appcompat:appcompat-resources:1.1.0, androidx.lifecycle:lifecycle-livedata:2.0.0, androidx.lifecycle:lifecycle-viewmodel:2.1.0, androidx.lifecycle:lifecycle-livedata-core:2.0.0, androidx.arch.core:core-runtime:2.0.0, androidx.recyclerview:recyclerview:1.1.0, androidx.cursoradapter:cursoradapter:1.0.0, androidx.vectordrawable:vectordrawable-animated:1.1.0, androidx.lifecycle:lifecycle-runtime:2.1.0, androidx.coordinatorlayout:coordinatorlayout:1.1.0, androidx.vectordrawable:vectordrawable:1.1.0, androidx.transition:transition:1.2.0
* Try:
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.
后來檢查了一遍，原來是依賴的第三方開源庫使用了Androidx，導致專案報錯，
解決方法：在terminal中用
gradlew -q :app:dependencies命令查看專案中依賴的第三方開源庫中的依賴項（app為模塊名），將有依賴于Androidx的第三方開源庫替換成依賴于support的庫就解決了
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標籤：其他