支持v4 CursorLoader - 很奇怪的错误只在少数设备上

Question

只有少数用户有以下错误，我真的不知道在哪里寻找这个错误，因为sql数据库文件位于正确的位置，sql manager打开它然后找不到那里的桌子！

我注意到，这只发生在使用支持V4库的CursorLoader时，可能错误在代码中？

任何建议或答案将有帮助。

java.lang.RuntimeException: An error occured while executing doInBackground() 
    at android.support.v4.b.r.done(SourceFile:137) 
    at java.util.concurrent.FutureTask$Sync.innerSetException(FutureTask.java:273) 
    at java.util.concurrent.FutureTask.setException(FutureTask.java:124) 
    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:307) 
    at java.util.concurrent.FutureTask.run(FutureTask.java:137) 
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1076) 
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:569) 
    at java.lang.Thread.run(Thread.java:856)Caused by: android.database.sqlite.SQLiteException: no such table: records: , while compiling: SELECT _id, name, isbackground FROM records ORDER BY _id ASC 
    at android.database.sqlite.SQLiteCompiledSql.native_compile(Native Method) 
    at android.database.sqlite.SQLiteCompiledSql.<init>(SQLiteCompiledSql.java:68) 
    at android.database.sqlite.SQLiteProgram.compileSql(SQLiteProgram.java:143) 
    at android.database.sqlite.SQLiteProgram.compileAndbindAllArgs(SQLiteProgram.java:361) 
    at android.database.sqlite.SQLiteProgram.<init>(SQLiteProgram.java:127) 
    at android.database.sqlite.SQLiteProgram.<init>(SQLiteProgram.java:94) 
    at android.database.sqlite.SQLiteQuery.<init>(SQLiteQuery.java:53) 
    at android.database.sqlite.SQLiteDirectCursorDriver.query(SQLiteDirectCursorDriver.java:47) 
    at android.database.sqlite.SQLiteDatabase.rawQueryWithFactory(SQLiteDatabase.java:1564) 
    at android.database.sqlite.SQLiteQueryBuilder.query(SQLiteQueryBuilder.java:354) 
    at android.database.sqlite.SQLiteQueryBuilder.query(SQLiteQueryBuilder.java:291) 
    at com.voicepro.db.RecordsContentProvider.query(SourceFile:289) 
    at android.content.ContentProvider$Transport.query(ContentProvider.java:178) 
    at android.content.ContentResolver.query(ContentResolver.java:311) 
    at android.support.v4.b.f.loadInBackground(SourceFile:49) 
    at android.support.v4.b.f.loadInBackground(SourceFile:35) 
    at android.support.v4.b.a.onLoadInBackground(SourceFile:240) 
    at android.support.v4.b.b.doInBackground(SourceFile:51) 
    at android.support.v4.b.b.doInBackground(SourceFile:40) 
    at android.support.v4.b.q.call(SourceFile:123) 
    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:305) android.database.sqlite.SQLiteException: no such table: records: , while compiling: SELECT _id, name, isbackground FROM records ORDER BY _id ASC 
    at android.database.sqlite.SQLiteCompiledSql.native_compile(Native Method) 
    at android.database.sqlite.SQLiteCompiledSql.<init>(SQLiteCompiledSql.java:68) 
    at android.database.sqlite.SQLiteProgram.compileSql(SQLiteProgram.java:143) 
    at android.database.sqlite.SQLiteProgram.compileAndbindAllArgs(SQLiteProgram.java:361) 
    at android.database.sqlite.SQLiteProgram.<init>(SQLiteProgram.java:127) 
    at android.database.sqlite.SQLiteProgram.<init>(SQLiteProgram.java:94) 
    at android.database.sqlite.SQLiteQuery.<init>(SQLiteQuery.java:53) 
    at android.database.sqlite.SQLiteDirectCursorDriver.query(SQLiteDirectCursorDriver.java:47) 
    at android.database.sqlite.SQLiteDatabase.rawQueryWithFactory(SQLiteDatabase.java:1564) 
    at android.database.sqlite.SQLiteQueryBuilder.query(SQLiteQueryBuilder.java:354) 
    at android.database.sqlite.SQLiteQueryBuilder.query(SQLiteQueryBuilder.java:291) 
    at com.voicepro.db.RecordsContentProvider.query(SourceFile:289) 
    at android.content.ContentProvider$Transport.query(ContentProvider.java:178) 
    at android.content.ContentResolver.query(ContentResolver.java:311) 
    at android.support.v4.b.f.loadInBackground(SourceFile:49) 
    at android.support.v4.b.f.loadInBackground(SourceFile:35) 
    at android.support.v4.b.a.onLoadInBackground(SourceFile:240) 
    at android.support.v4.b.b.doInBackground(SourceFile:51) 
    at android.support.v4.b.b.doInBackground(SourceFile:40) 
    at android.support.v4.b.q.call(SourceFile:123) 
    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:305) 
    at java.util.concurrent.FutureTask.run(FutureTask.java:137) 
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1076) 
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:569) 
    at java.lang.Thread.run(Thread.java:856) 

Answer 1

可能是一个损坏或不完整的数据库。检查发生了什么设备，并可能尝试获取数据库的副本。不直接相关，但尽量不要混淆支持库，一些代码依赖子类/方法名称。