idea创建同名的maven工程时报错:Failed to create a Maven project 'xxx/pom.xml' already exists in VFS

1、说明

　　原先有个 xxx 的 maven 工程，然后删掉了，又重新建了个同名的工程，而且目录也一样，结果报错：

　　可以在 Help ==》 Show Log in Explorer 查看到以下具体的报错日志：

2019-11-01 10:48:26,516 [ 204743]   WARN -      #org.jetbrains.idea.maven - Failed to create a Maven project
java.io.IOException: 'D:/IdeaProjects/xxx/pom.xml' already exists in VFS
    at com.intellij.openapi.vfs.impl.local.LocalFileSystemBase.createChildFile(LocalFileSystemBase.java:362)
    at com.intellij.openapi.vfs.newvfs.persistent.PersistentFSImpl.createChildFile(PersistentFSImpl.java:441)
    at com.intellij.openapi.vfs.newvfs.impl.VirtualFileSystemEntry.createChildData(VirtualFileSystemEntry.java:194)
    at org.jetbrains.idea.maven.wizards.MavenModuleBuilderHelper.lambda$configure$0(MavenModuleBuilderHelper.java:95)
    at com.intellij.openapi.command.WriteCommandAction$BuilderImpl$2.run(WriteCommandAction.java:134)
    at com.intellij.openapi.application.RunResult.run(RunResult.java:35)
    at com.intellij.openapi.command.WriteCommandAction.lambda$null$1(WriteCommandAction.java:263)
    at com.intellij.openapi.application.impl.ApplicationImpl.runWriteAction(ApplicationImpl.java:1054)
    at com.intellij.openapi.command.WriteCommandAction.lambda$performWriteCommandAction$2(WriteCommandAction.java:262)
    at com.intellij.openapi.command.WriteCommandAction.lambda$doExecuteCommand$4(WriteCommandAction.java:319)
    at com.intellij.openapi.command.impl.CoreCommandProcessor.executeCommand(CoreCommandProcessor.java:220)
    at com.intellij.openapi.command.impl.CoreCommandProcessor.executeCommand(CoreCommandProcessor.java:188)
    at com.intellij.openapi.command.WriteCommandAction.doExecuteCommand(WriteCommandAction.java:321)
    at com.intellij.openapi.command.WriteCommandAction.performWriteCommandAction(WriteCommandAction.java:262)
    at com.intellij.openapi.command.WriteCommandAction.execute(WriteCommandAction.java:244)
    at com.intellij.openapi.command.WriteCommandAction$BuilderImpl.compute(WriteCommandAction.java:136)
    at org.jetbrains.idea.maven.wizards.MavenModuleBuilderHelper.configure(MavenModuleBuilderHelper.java:92)
    at org.jetbrains.idea.maven.wizards.MavenModuleBuilder.lambda$setupRootModel$0(MavenModuleBuilder.java:72)
    at com.intellij.util.DisposeAwareRunnable.run(DisposeAwareRunnable.java:86)
    at com.intellij.ide.startup.impl.StartupManagerImpl.runActivity(StartupManagerImpl.java:360)
    at com.intellij.ide.startup.impl.StartupManagerImpl.runActivities(StartupManagerImpl.java:353)
    at com.intellij.ide.startup.impl.StartupManagerImpl.runPostStartupActivities(StartupManagerImpl.java:181)
    at com.intellij.openapi.project.impl.ProjectManagerImpl.lambda$null$7(ProjectManagerImpl.java:411)
    at com.intellij.openapi.application.TransactionGuardImpl$2.run(TransactionGuardImpl.java:315)
    at com.intellij.openapi.application.impl.LaterInvocator$FlushQueue.doRun(LaterInvocator.java:435)
    at com.intellij.openapi.application.impl.LaterInvocator$FlushQueue.runNextEvent(LaterInvocator.java:419)
    at com.intellij.openapi.application.impl.LaterInvocator$FlushQueue.run(LaterInvocator.java:403)
    at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311)
    at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:764)
    at java.awt.EventQueue.access$500(EventQueue.java:98)
    at java.awt.EventQueue$3.run(EventQueue.java:715)
    at java.awt.EventQueue$3.run(EventQueue.java:709)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:74)
    at java.awt.EventQueue.dispatchEvent(EventQueue.java:734)
    at com.intellij.ide.IdeEventQueue.defaultDispatchEvent(IdeEventQueue.java:747)
    at com.intellij.ide.IdeEventQueue._dispatchEvent(IdeEventQueue.java:696)
    at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.java:391)
    at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:205)
    at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
    at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
    at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)

2、处理方法：

　　先确认同目录下的同名工程是否确实已经删除，如果没有，就先删除掉，然后 清空回收站，再重启 idea，OK。