按视频敲的代码闪退

Process: com.xq.sqliteadapterdemo, PID: 28120

    java.lang.RuntimeException: Unable to start activity ComponentInfo{com.xq.sqliteadapterdemo/com.xq.sqliteadapterdemo.MainActivity}: android.database.sqlite.SQLiteCantOpenDatabaseException: unknown error (Sqlite code 14 SQLITE_CANTOPEN): Could not open database, (OS error - 13:Permission denied)