我是Android工作室的初级用户。在我使用它的同时，出现了一条错误消息。我尝试将文件夹的属性更改为用户和管理员的完全访问权限以及此处的其他建议，但仍会弹出以下错误消息。
[IDE致命错误]
C:\Users\hakmin\.AndroidStudio3.1\system\gradle\Projects\ff20177d\project.dat (access is denied)
java.io.FileNotFoundException: C:\Users\hakmin\.AndroidStudio3.1\system\gradle\Projects\ff20177d\project.dat (access is denied)
at java.io.FileOutputStream.open0(Native Method)
at java.io.FileOutputStream.open(FileOutputStream.java:270)
at java.io.FileOutputStream.<init>(FileOutputStream.java:213)
at java.io.FileOutputStream.<init>(FileOutputStream.java:162)
at org.jetbrains.plugins.gradle.service.project.data.ExternalProjectSerializer.save(ExternalProjectSerializer.java:234)
at org.jetbrains.plugins.gradle.service.project.data.ExternalProjectDataCache.saveExternalProject(ExternalProjectDataCache.java:85)
at org.jetbrains.plugins.gradle.service.project.data.ExternalProjectDataService.importData(ExternalProjectDataService.java:59)
at com.intellij.openapi.externalSystem.service.project.manage.ProjectDataManagerImpl.doImportData(ProjectDataManagerImpl.java:271)
at com.intellij.openapi.externalSystem.service.project.manage.ProjectDataManagerImpl.importData(ProjectDataManagerImpl.java:145)
at com.intellij.openapi.externalSystem.service.project.manage.ProjectDataManagerImpl.importData(ProjectDataManagerImpl.java:221)
at com.intellij.openapi.externalSystem.service.project.manage.ProjectDataManagerImpl.importData(ProjectDataManagerImpl.java:228)
at com.android.tools.idea.gradle.project.sync.idea.IdeaSyncPopulateProjectTask.doPopulateProject(IdeaSyncPopulateProjectTask.java:117)
at com.android.tools.idea.gradle.project.sync.idea.IdeaSyncPopulateProjectTask.populate(IdeaSyncPopulateProjectTask.java:94)
at com.android.tools.idea.gradle.project.sync.idea.IdeaSyncPopulateProjectTask.access$000(IdeaSyncPopulateProjectTask.java:39)
at com.android.tools.idea.gradle.project.sync.idea.IdeaSyncPopulateProjectTask$1.run(IdeaSyncPopulateProjectTask.java:84)
at com.intellij.openapi.progress.impl.CoreProgressManager$TaskRunnable.run(CoreProgressManager.java:713)
at com.intellij.openapi.progress.impl.CoreProgressManager.lambda$runProcess$1(CoreProgressManager.java:157)
at com.intellij.openapi.progress.impl.CoreProgressManager.registerIndicatorAndRun(CoreProgressManager.java:543)
at com.intellij.openapi.progress.impl.CoreProgressManager.executeProcessUnderProgress(CoreProgressManager.java:488)
at com.intellij.openapi.progress.impl.ProgressManagerImpl.executeProcessUnderProgress(ProgressManagerImpl.java:94)
at com.intellij.openapi.progress.impl.CoreProgressManager.runProcess(CoreProgressManager.java:144)
at com.intellij.openapi.progress.impl.ProgressManagerImpl$2.run(ProgressManagerImpl.java:165)
at com.intellij.openapi.application.impl.ApplicationImpl$1.run(ApplicationImpl.java:315)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
谢谢。