1.ADT中使用DDMS导入文件再次出现transfer error: Read-only file system
解决：
1.打开AVD管理器，然后确定了，本身AVD管理器中的AVD中的sdcard是否OK的：
2.参考：然后去看看AndroidManifest.xml：是否设置对应的sdcard的mount权限
修改后的XML
<? xml version = "1.0" encoding = "utf-8" ?> < manifest xmlns:android = "" package = "com.mm.antlrv3demo" android:versionCode = "1" android:versionName = "1.0" > < uses-sdk android:minSdkVersion = "8" android:targetSdkVersion = "16" /> < uses-permission android:name = "android.permission.MOUNT_UNMOUNT_FILESYSTEMS" /> < uses-permission android:name = "android.permission.WRITE_EXTERNAL_STORAGE" /> < application android:allowBackup = "true" android:icon = "@drawable/ic_launcher" android:label = "@string/app_name" android:theme = "@style/AppTheme" > < activity android:name = "com.mm.antlrv3demo.DDParser" android:label = "@string/app_name" > < intent-filter > < action android:name = "android.intent.action.MAIN" /> < category android:name = "android.intent.category.LAUNCHER" /> </ intent-filter > </ activity > </ application > </ manifest > 然后试试结果，然后可以解决此问题了