This section provides reference information about the following SQL Server Express LocalDB error messages:
Administrator privileges are required in order to execute this operation.
Cannot create an automatic instance. See the Windows Application event log for error details.
API caller is not LocalDB instance owner.
An instance folder cannot be accessed.
An instance registry cannot be accessed.
A folder cannot be created under %userprofile%.
A process for SQL Server cannot be created.
A user profile folder cannot be retrieved.
An instance registry cannot be modified.
The specified instance is already shared.
The specified instance is running.
An instance configuration is corrupted.
The specified instance already exists but its version is lower than requested.
The path where the instance should be stored is longer than MAX_PATH.
The stop operation failed to complete within the given time.
The input buffer is too short, and truncation was not requested.
An unexpected error occurred. See the event log for details.
The specified instance name is invalid.
One or more specified input parameters are invalid.
SQL Server Express LocalDB is not installed on the computer.
The specified shared name is already taken.
A SQL Server process was started, but SQL Server startup failed.
There are too many shared instances.
The requested message does not exist.
The instance does not exist.
The message is not available in the requested language.
The specified version is not available.
The specified patch level is not installed.
A time-out occurred while trying to acquire the synchronization locks.
Failed to start XEvent engine within the LocalDB Instance API.