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下面看下IDEA 2021.2 启动报错问题解决方法，内容如下所示：
错误信息如下：
Plugin 'some.awesome' failed to initialize and will be disabled. Please restart IntelliJ IDEA.
java.lang.NullPointerException
at NyanApplicationComponent.<init>(NyanApplicationComponent.java:21)
at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:490)
at com.intellij.serviceContainer.ConstructorInjectionKt.instantiateUsingPicoContainer(constructorInjection.kt:52)
at com.intellij.serviceContainer.ComponentManagerImpl.instantiateClassWithConstructorInjection(ComponentManagerImpl.kt:877)
at com.intellij.serviceContainer.MyComponentAdapter.doCreateInstance(MyComponentAdapter.kt:35)
at com.intellij.serviceContainer.BaseComponentAdapter.getInstanceUncached(BaseComponentAdapter.kt:113)
at com.intellij.serviceContainer.BaseComponentAdapter.getInstance(BaseComponentAdapter.kt:67)
at com.intellij.serviceContainer.BaseComponentAdapter.getInstance$default(BaseComponentAdapter.kt:60)
at com.intellij.serviceContainer.ComponentManagerImpl.createComponents(ComponentManagerImpl.kt:407)
at com.intellij.openapi.application.impl.ApplicationImpl.lambda$loadComponents$5(ApplicationImpl.java:369)
at com.intellij.openapi.progress.impl.CoreProgressManager.lambda$runProcess$2(CoreProgressManager.java:183)
at com.intellij.openapi.progress.impl.CoreProgressManager.registerIndicatorAndRun(CoreProgressManager.java:705)
at com.intellij.openapi.progress.impl.CoreProgressManager.executeProcessUnderProgress(CoreProgressManager.java:647)
at com.intellij.openapi.progress.impl.ProgressManagerImpl.executeProcessUnderProgress(ProgressManagerImpl.java:63)
at com.intellij.openapi.progress.impl.CoreProgressManager.runProcess(CoreProgressManager.java:170)
at com.intellij.openapi.application.impl.ApplicationImpl.loadComponents(ApplicationImpl.java:369)
at com.intellij.idea.ApplicationLoader$startApp$loadComponentInEdtFuture$1.run(ApplicationLoader.kt:136)
at java.base/java.util.concurrent.CompletableFuture$AsyncRun.run(CompletableFuture.java:1736)
at com.intellij.openapi.application.TransactionGuardImpl.runWithWritingAllowed(TransactionGuardImpl.java:214)
at com.intellij.openapi.application.TransactionGuardImpl.access$200(TransactionGuardImpl.java:21)
at com.intellij.openapi.application.TransactionGuardImpl$2.run(TransactionGuardImpl.java:196)
at com.intellij.openapi.application.impl.ApplicationImpl.runIntendedWriteActionOnCurrentThread(ApplicationImpl.java:794)
at com.intellij.openapi.application.impl.ApplicationImpl.lambda$invokeLater$4(ApplicationImpl.java:350)
at com.intellij.openapi.application.impl.FlushQueue.doRun(FlushQueue.java:84)
at com.intellij.openapi.application.impl.FlushQueue.runNextEvent(FlushQueue.java:133)
at com.intellij.openapi.application.impl.FlushQueue.flushNow(FlushQueue.java:46)
at com.intellij.openapi.application.impl.FlushQueue$FlushNow.run(FlushQueue.java:189)
at java.desktop/java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:313)
at java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:776)
at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:727)
at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:721)
at java.base/java.security.AccessController.doPrivileged(Native Method)
at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:85)
at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:746)
at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.java:408)
at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:203)
at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:124)
at java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:113)
at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:109)
at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
at java.desktop/java.awt.EventDispatchThread.run(EventDispatchThread.java:90)
解决方案:
方案一: 重启IDEA ===>成功
方案二：
请参考我的另一篇博文的解决方案：
https://www.jb51.net/article/195557.htm
到此这篇关于IDEA 2021.2 启动报错及激活教程的文章就介绍到这了,更多相关IDEA 2021.2 激活码内容请搜索编程网以前的文章或继续浏览下面的相关文章希望大家以后多多支持编程网！
