记一次AndroidStudio在Linux环境上的奇葩错误，Argument for @NotNull parameter 'messag

错误信息

Argument for @NotNull parameter 'message' of com/android/tools/idea/gradle/project/sync/GradleSyncState.syncFailed must not be null java.lang.IllegalArgumentException: Argument for @NotNull parameter 'message' of com/android/tools/idea/gradle/project/sync/GradleSyncState.syncFailed must not be null at com.android.tools.idea.gradle.project.sync.GradleSyncState.$$$reportNull$$$0(GradleSyncState.java) at com.android.tools.idea.gradle.project.sync.GradleSyncState.syncFailed(GradleSyncState.java) at com.android.tools.idea.gradle.project.sync.idea.IdeaSyncPopulateProjectTask.doPopulateProject(IdeaSyncPopulateProjectTask.java:135) at com.android.tools.idea.gradle.project.sync.idea.IdeaSyncPopulateProjectTask.populate(IdeaSyncPopulateProjectTask.java:97) 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$1.run(IdeaSyncPopulateProjectTask.java:86) at com.intellij.openapi.progress.impl.CoreProgressManager$TaskRunnable.run(CoreProgressManager.java:750) at com.intellij.openapi.progress.impl.CoreProgressManager.lambda$runProcess$1(CoreProgressManager.java:157) at com.intellij.openapi.progress.impl.CoreProgressManager.registerIndicatorAndRun(CoreProgressManager.java:580) at com.intellij.openapi.progress.impl.CoreProgressManager.executeProcessUnderProgress(CoreProgressManager.java:525) at com.intellij.openapi.progress.impl.ProgressManagerImpl.executeProcessUnderProgress(ProgressManagerImpl.java:85) at com.intellij.openapi.progress.impl.CoreProgressManager.runProcess(CoreProgressManager.java:144) at com.intellij.openapi.progress.impl.CoreProgressManager$4.run(CoreProgressManager.java:395) at com.intellij.openapi.application.impl.ApplicationImpl$1.run(ApplicationImpl.java:305) at java.util.concurrent.Executors$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)

情境

之前这几个android项目是在windows上编写的，切换到linux环境之后继续做开发。我把这个分区挂载到 /media/user/data 之后，为了方便使用，创建了一个软链接 /home/user/data/ 打开项目是从这个软链接打开的，结果每次都build不了，我还以为我电脑出了什么问题，Google无果。

偶然在StackOverFlow看到一个奇葩问题，# [Android Studio build error on NTFS partition](https://stackoverflow.com/questions/52721989/android-studio-build-error-on-ntfs-partition)

I'm having problems building apps on Android Studio. Things work fine when the project is on my ext4 partition, but when I created a new one on my NTFS, I encountered this:

The error disappeared when I restarted Android Studio, but after that I still cannot run my app (the project structure in the sidebar is not displayed properly). I'm using Android Studio 3.2 on Ubuntu 18.04.1.

下面有一个回答：

I figured it out. (By mistake, to be honest...)

Let's say you have an NTFS partition mount at /mnt/ntfs, and your project is at /mnt/ntfs/projects/project. Your home partition (ext4) is mounted at /home, your home directory is /home/user and you have a symbolic link at /home/user/projects that points to /mnt/ntfs/projects.

The reason I (and hopefully you too) have encountered this error is that when using Android Studio's "Open Project..." option, I provided the symbolic link (/home/user/projects/project). When trying to provide the real path (/mnt/ntfs/projects/project) the gradle sync succeeded.

So to fix this for now, simply provide the real path. However, this should probably be addressed by IntelliJ or the developers of Gradle.

解决

所以就解决了呀，不要用软链接打开就行了，Gradle不支持软链接文件夹。无语

About

了解更多有趣的操作请关注我的微信公众号：DealiAxy 每一篇文章都在我的博客有收录：blog.deali.cn