背景&错误
升级Android Studio
旧项目无法运行，奇奇怪怪什么错误都有
例如：
java.lang.IllegalAccessError: class org.gradle.api.internal.tasks.compile.processing.AggregatingProcessingStrategy (in unnamed module @0x390ea9fb) cannot access class com.sun.tools.javac.code.Symbol$ClassSymbol (in module jdk.compiler) because module jdk.compiler does not export com.sun.tools.javac.code to unnamed module @0x390ea9fb
* Exception is:
org.gradle.api.tasks.TaskExecutionException: Execution failed for task ':BaziPaipan_lib:compileDebugJavaWithJavac'.
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.lambda$executeIfValid$1(ExecuteActionsTaskExecuter.java:200)
at org.gradle.internal.Try$Failure.ifSuccessfulOrElse(Try.java:263)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeIfValid(ExecuteActionsTaskExecuter.java:198)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.execute(ExecuteActionsTaskExecuter.java:179)
at org.gradle.api.internal.tasks.execution.CleanupStaleOutputsExecuter.execute(CleanupStaleOutputsExecuter.java:109)
at org.gradle.api.internal.tasks.execution.FinalizePropertiesTaskExecuter.execute(FinalizePropertiesTaskExecuter.java:46)
at org.gradle.api.internal.tasks.execution.ResolveTaskExecutionModeExecuter.execute(ResolveTaskExecutionModeExecuter.java:62)
at org.gradle.api.internal.tasks.execution.SkipTaskWithNoActionsExecuter.execute(SkipTaskWithNoActionsExecuter.java:57)
at org.gradle.api.internal.tasks.execution.SkipOnlyIfTaskExecuter.execute(SkipOnlyIfTaskExecuter.java:56)
at org.gradle.api.internal.tasks.execution.CatchExceptionTaskExecuter.execute(CatchExceptionTaskExecuter.java:36)
at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter$1.executeTask(EventFiringTaskExecuter.java:77)
at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter$1.call(EventFiringTaskExecuter.java:55)
at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter$1.call(EventFiringTaskExecuter.java:52)
at org.gradle.internal.operations.DefaultBuildOperationRunner$CallableBuildOperationWorker.execute(DefaultBuildOperationRunner.java:200)
at org.gradle.internal.operations.DefaultBuildOperationRunner$CallableBuildOperationWorker.execute(DefaultBuildOperationRunner.java:195)
at org.gradle.internal.operations.DefaultBuildOperationRunner$3.execute(DefaultBuildOperationRunner.java:75)
at org.gradle.internal.operations.DefaultBuildOperationRunner$3.execute(DefaultBuildOperationRunner.java:68)
at org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:153)
at org.gradle.internal.operations.DefaultBuildOperationRunner.execute(DefaultBuildOperationRunner.java:68)
at org.gradle.internal.operations.DefaultBuildOperationRunner.call(DefaultBuildOperationRunner.java:62)
at org.gradle.internal.operations.DefaultBuildOperationExecutor.lambda$call$2(DefaultBuildOperationExecutor.java:76)
at org.gradle.internal.operations.UnmanagedBuildOperationWrapper.callWithUnmanagedSupport(UnmanagedBuildOperationWrapper.java:54)
at org.gradle.internal.operations.DefaultBuildOperationExecutor.call(DefaultBuildOperationExecutor.java:76)
at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter.execute(EventFiringTaskExecuter.java:52)
at org.gradle.execution.plan.LocalTaskNodeExecutor.execute(LocalTaskNodeExecutor.java:41)
at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$InvokeNodeExecutorsAction.execute(DefaultTaskExecutionGraph.java:372)
at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$InvokeNodeExecutorsAction.execute(DefaultTaskExecutionGraph.java:359)
at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$BuildOperationAwareExecutionAction.execute(DefaultTaskExecutionGraph.java:352)
at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$BuildOperationAwareExecutionAction.execute(DefaultTaskExecutionGraph.java:338)
at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker.lambda$run$0(DefaultPlanExecutor.java:127)
at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker.execute(DefaultPlanExecutor.java:191)
at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker.executeNextNode(DefaultPlanExecutor.java:182)
at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker.run(DefaultPlanExecutor.java:124)
at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:64)
at org.gradle.internal.concurrent.ManagedExecutorImpl$1.run(ManagedExecutorImpl.java:48)
at org.gradle.internal.concurrent.ThreadFactoryImpl$ManagedThreadRunnable.run(ThreadFactoryImpl.java:56)
Caused by: java.lang.RuntimeException: java.lang.IllegalAccessError: class org.gradle.api.internal.tasks.compile.processing.AggregatingProcessingStrategy (in unnamed module @0x390ea9fb) cannot access class com.sun.tools.javac.code.Symbol$ClassSymbol (in module jdk.compiler) because module jdk.compiler does not export com.sun.tools.javac.code to unnamed module @0x390ea9fb
at jdk.compiler/com.sun.tools.javac.api.JavacTaskImpl.invocationHelper(Unknown Source)
at jdk.compiler/com.sun.tools.javac.api.JavacTaskImpl.doCall(Unknown Source)
又例如：
排查解决
初步排查判断是旧项目Gradle版本问题导致。因为最近创建的项目，升级AS之后无影响，只有旧项目跑不起来。
查阅资料发现，随着AS gradle插件版本的升级，项目中gradle plugin版本、gradle版本、jdk版本等均需要配合一起升级，否则编译不过。比如类似这种报错提示：
build.gradle 中配置的gradle版本太低：
Unsupported Java.
Your build is currently configured to use Java 17.0.6 and Gradle 6.7.1.
gradle.properties中配置的gradle版本很高，builde.gradle中配置没有匹配：
Could not resolve all dependencies for configuration ':classpath'.
> Using insecure protocols with repositories, without explicit opt-in, is unsupported. Switch Maven repository 'maven5(http://mvn.mob.com/android)' to redirect to a secure protocol (like HTTPS) or allow insecure protocols. See https://docs.gradle.org/7.5.1/dsl/org.gradle.api.artifacts.repositories.UrlArtifactRepository.html#org.gradle.api.artifacts.repositories.UrlArtifactRepository:allowInsecureProtocol for more details.
gradle.properties中配置的版本太低，匹配不上AS版本或者gradle版本
Unsupported Gradle.
The project uses Gradle 2.14.1 which is incompatible with Android Studio 2022.2.
其实以上错误，基本上都是版本不匹配导致，那么，匹配上基本就能解决了。
从官网整理了一份各版本对应表：
| AGP版本(build.gradle中) | Gradle最低版本(gradle.properties中) | 最低JDK版本(项目配置) | SDK Build Tools |
|---|---|---|---|
| 8.1 | 8.0 | 17 | 30.0.3 |
| 8.0 | 8.0 | 17 | 30.0.3 |
| 7.4 | 7.5 | 11 | 30.0.3 |
| 7.3 | 7.4 | 11 | 30.0.3 |
| 7.2 | 7.3.3 | 11 | 30.0.3 |
| 7.1 | 7.2 | 11 | 30.0.3 |
| 7.0 | 7.0.2 | 11 | 30.0.2 |
| 4.2.0+ | 6.7.1 | 1.7 | 30.0.2 |
| 4.1.0+ | 6.5+ | 1.7 | 29.0.2 |
| 4.0.0+ | 6.1.1+ | 1.7 | 29.0.2 |
| 3.6.0 - 3.6.4 | 5.6.4+ | 1.7 | 28.0.3 |
| 3.5.0 - 3.5.4 | 5.4.1+ | 1.7 | 28.0.3 |
| 3.4.0 - 3.4.3 | 5.1.1+ | 1.7 | 28.0.3 |
| Android Studio 版本 | 所需 AGP 版本 |
|---|---|
| Giraffe | 2022.3.1 | 3.2-8.1 |
| Flamingo | 2022.2.1 | 3.2-8.0 |
| Electric Eel | 2022.1.1 | 3.2-7.4 |
| Dolphin | 2021.3.1 | 3.2-7.3 |
| Chipmunk | 2021.2.1 | 3.2-7.2 |
| Bumblebee | 2021.1.1 | 3.2-7.1 |
| Arctic Fox | 2020.3.1 | 3.1-7.0 |
方案
修改项目配置，对应上版本，很多老项目还在4.x版本，所以不兼容报错，一般升级7.0+就能解决，这也是谷歌倒推着我们开发者们往上升级，旧版的一些api慢慢都会废弃掉。
从4.x升级至7.0+的话，配置改动会大一点，主要是依赖仓库的配置、上传发布maven等日常配置，教程网上一堆，自行搜索即可。