今天在開(kāi)發(fā)的時(shí)候遇到了一個(gè)兼容性問(wèn)題，原場(chǎng)景是我的項(xiàng)目是用的Support包，由于要實(shí)現(xiàn)自定義視頻拍攝，時(shí)間比較緊檩电，就尋找了一個(gè)開(kāi)源項(xiàng)目(使用AndroidX開(kāi)發(fā))，根據(jù)項(xiàng)目的需求，需要修改相關(guān)的邏輯和UI效果俐末，就直接把項(xiàng)目導(dǎo)入了進(jìn)來(lái)料按。
當(dāng)我添加Module依賴后，開(kāi)始同步項(xiàng)目時(shí)編譯器報(bào)了如下錯(cuò)誤
Manifest merger failed : Attribute application@appComponentFactory value=(android.support.v4.app.CoreComponentFactory) from [com.android.support:support-compat:28.0.0] AndroidManifest.xml:22:18-91
is also present at [androidx.core:core:1.0.0] AndroidManifest.xml:22:18-86 value=(androidx.core.app.CoreComponentFactory).
Suggestion: add 'tools:replace="android:appComponentFactory"' to <application> element at AndroidManifest.xml:28:5-90:19 to override.
根據(jù)錯(cuò)誤提示添加 tools:replace="android:appComponentFactory到 application標(biāo)簽下卓箫，然后再次編譯一下項(xiàng)目载矿，但是項(xiàng)目還是繼續(xù)報(bào)錯(cuò)
org.gradle.api.tasks.TaskExecutionException: Execution failed for task ':album:processDebugManifest'.
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:110)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.execute(ExecuteActionsTaskExecuter.java:77)
at org.gradle.api.internal.tasks.execution.OutputDirectoryCreatingTaskExecuter.execute(OutputDirectoryCreatingTaskExecuter.java:51)
at org.gradle.api.internal.tasks.execution.SkipUpToDateTaskExecuter.execute(SkipUpToDateTaskExecuter.java:59)
at org.gradle.api.internal.tasks.execution.ResolveTaskOutputCachingStateExecuter.execute(ResolveTaskOutputCachingStateExecuter.java:54)
at org.gradle.api.internal.tasks.execution.ValidatingTaskExecuter.execute(ValidatingTaskExecuter.java:59)
at org.gradle.api.internal.tasks.execution.SkipEmptySourceFilesTaskExecuter.execute(SkipEmptySourceFilesTaskExecuter.java:101)
at org.gradle.api.internal.tasks.execution.FinalizeInputFilePropertiesTaskExecuter.execute(FinalizeInputFilePropertiesTaskExecuter.java:44)
at org.gradle.api.internal.tasks.execution.CleanupStaleOutputsExecuter.execute(CleanupStaleOutputsExecuter.java:91)
at org.gradle.api.internal.tasks.execution.ResolveTaskArtifactStateTaskExecuter.execute(ResolveTaskArtifactStateTaskExecuter.java:62)
at org.gradle.api.internal.tasks.execution.SkipTaskWithNoActionsExecuter.execute(SkipTaskWithNoActionsExecuter.java:59)
at org.gradle.api.internal.tasks.execution.SkipOnlyIfTaskExecuter.execute(SkipOnlyIfTaskExecuter.java:54)
at org.gradle.api.internal.tasks.execution.ExecuteAtMostOnceTaskExecuter.execute(ExecuteAtMostOnceTaskExecuter.java:43)
at org.gradle.api.internal.tasks.execution.CatchExceptionTaskExecuter.execute(CatchExceptionTaskExecuter.java:34)
at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter$1.run(EventFiringTaskExecuter.java:51)
at org.gradle.internal.operations.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:300)
at org.gradle.internal.operations.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:292)
at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:174)
at org.gradle.internal.operations.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:90)
at org.gradle.internal.operations.DelegatingBuildOperationExecutor.run(DelegatingBuildOperationExecutor.java:31)
at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter.execute(EventFiringTaskExecuter.java:46)
at org.gradle.execution.taskgraph.LocalTaskInfoExecutor.execute(LocalTaskInfoExecutor.java:42)
at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$BuildOperationAwareWorkItemExecutor.execute(DefaultTaskExecutionGraph.java:277)
at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$BuildOperationAwareWorkItemExecutor.execute(DefaultTaskExecutionGraph.java:262)
at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$ExecutorWorker$1.execute(DefaultTaskPlanExecutor.java:135)
at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$ExecutorWorker$1.execute(DefaultTaskPlanExecutor.java:130)
at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$ExecutorWorker.execute(DefaultTaskPlanExecutor.java:200)
at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$ExecutorWorker.executeWithWork(DefaultTaskPlanExecutor.java:191)
at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$ExecutorWorker.run(DefaultTaskPlanExecutor.java:130)
at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:63)
at org.gradle.internal.concurrent.ManagedExecutorImpl$1.run(ManagedExecutorImpl.java:46)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at org.gradle.internal.concurrent.ThreadFactoryImpl$ManagedThreadRunnable.run(ThreadFactoryImpl.java:55)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.RuntimeException: Manifest merger failed with multiple errors, see logs
at com.android.builder.core.AndroidBuilder.mergeManifestsForApplication(AndroidBuilder.java:540)
at com.android.build.gradle.tasks.ProcessManifest.doFullTaskAction(ProcessManifest.java:75)
at com.android.build.gradle.internal.tasks.IncrementalTask.taskAction(IncrementalTask.java:106)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.gradle.internal.reflect.JavaMethod.invoke(JavaMethod.java:73)
at org.gradle.api.internal.project.taskfactory.IncrementalTaskAction.doExecute(IncrementalTaskAction.java:50)
at org.gradle.api.internal.project.taskfactory.StandardTaskAction.execute(StandardTaskAction.java:39)
at org.gradle.api.internal.project.taskfactory.StandardTaskAction.execute(StandardTaskAction.java:26)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter$1.run(ExecuteActionsTaskExecuter.java:131)
at org.gradle.internal.operations.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:300)
at org.gradle.internal.operations.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:292)
at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:174)
at org.gradle.internal.operations.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:90)
at org.gradle.internal.operations.DelegatingBuildOperationExecutor.run(DelegatingBuildOperationExecutor.java:31)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeAction(ExecuteActionsTaskExecuter.java:120)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:99)
... 34 more
但是從上述錯(cuò)誤中并不能看出錯(cuò)在哪里，這時(shí)可以運(yùn)行以下命令查看詳細(xì)編譯報(bào)錯(cuò)信息 gradlew assembleDebug --stacktrace --debug
由于錯(cuò)誤信息太多烹卒，這里我就不貼上來(lái)了闷盔，查看報(bào)錯(cuò)日志發(fā)現(xiàn)出錯(cuò)是在合并AndroidManifest文件時(shí)添加相關(guān)屬性包的錯(cuò)，由于AndroidX模式下有的屬性然后在合并時(shí)添加到Support模式下的AndroidManifest文件時(shí)沒(méi)有這個(gè)屬性然后就報(bào)錯(cuò)了旅急，
首先我想到的油兩個(gè)解決辦法逢勾，第一個(gè)就是把現(xiàn)在的項(xiàng)目改成AndroidX版本的，或者是把這個(gè)三方庫(kù)改成使用Support包版本的藐吮；第一種方法改動(dòng)太大溺拱，剩下的只有把這個(gè)使用AndroidX的庫(kù)替換為使用Support庫(kù)了，首先要看看這個(gè)三方庫(kù)哪些地方使用了AndroidX版本的庫(kù)谣辞，在命令行中輸入以下命令可以查看指定Module使用了哪些庫(kù)：dradlew :Module名:dependences
然后把AndroidX庫(kù)替換為對(duì)應(yīng)的Support庫(kù)迫摔，經(jīng)過(guò)我的測(cè)試發(fā)現(xiàn)，不是所有的AndroidX庫(kù)都會(huì)導(dǎo)致這個(gè)問(wèn)題泥从，我這里是由于引用了play-services-tasks句占，這個(gè)包中的相關(guān)屬性沖突導(dǎo)致編譯AndroidManifest文件失敗，然后我去官方查看歷史版本躯嫉，發(fā)現(xiàn)最新的版本底層都是引用的AndroidX辖众，而其15.0.1為最后的Support包版本，然后修改其版本號(hào)和敬，然后編譯，需要注意一點(diǎn)戏阅，我們要去掉剛才添加的tools屬性昼弟。一般做了這個(gè)操作后都可以編譯成功了，但是我這里還有一個(gè)小插曲奕筐，因?yàn)槲沂褂昧?code>androidx-annotation,還會(huì)出現(xiàn)這個(gè)錯(cuò)誤 More than one file was found with OS independent path 'META-INF/proguard/androidx-annotations.pro',有多個(gè)Proguard文件舱痘，那么我們把這個(gè)文件排除，在主Module的android閉包內(nèi)添加以下配置
android{
packagingOptions {
exclude 'META-INF/proguard/androidx-annotations.pro'
}
}
然后再次編譯离赫，OK芭逝，項(xiàng)目成功安裝，正常運(yùn)行Ｔㄐ亍Ｑⅰ！
