[android-developers] how to fix the error: android.database.sqlite.SQLiteDiskIOException: disk I/O error (code 522) ?

i am working on android 4.1.

recently i consequently get the android.database.sqlite.SQLiteDiskIOException: disk I/O error (code 522)

it is a random thing,  but only happened in the apps that used MediaProvider!

Caused by: android.database.sqlite.SQLiteDiskIOException: disk I/O error (code 522)

        at android.database.DatabaseUtils.readExceptionFromParcel(DatabaseUtils.java:182)

        at android.database.DatabaseUtils.readExceptionFromParcel(DatabaseUtils.java:140)

        at android.content.ContentProviderProxy.query(ContentProviderNative.java:366)

        at android.content.ContentResolver.query(ContentResolver.java:371)

        at android.content.ContentResolver.query(ContentResolver.java:314)

can anyone give me some hint? it is blocking me  for 3 weeks .....

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