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All SQLite error codes
SQLite error code

SQLITE_READONLY_ROLLBACK

SQLITE_READONLY_ROLLBACK is SQLite result code 776, an extended code of SQLITE_READONLY.

Result code776
NameSQLITE_READONLY_ROLLBACK
Primary codeSQLITE_READONLY

What it means

The SQLITE_READONLY_ROLLBACK error code is an extended error code for SQLITE_READONLY. The SQLITE_READONLY_ROLLBACK error code indicates that a database cannot be opened because it has a hot journal that needs to be rolled back but cannot because the database is readonly.

Source: SQLite Result and Error Codes