# S12004 {#S12004}

## Error Code {#error_code .section}

S12004

## Error Message {#error_message .section}

`The meta.log file was not found. Please contact technical support to check the online recovery process. RefId: S12004`

## Probable Causes {#probable_causes .section}

This error occurs when the *meta.log* file cannot be found during the reconstruction of metadata after the online recovery process. This may be because the file fails to be transferred due to network or logical issues, or because the file is not correctly written to disk.

## Solutions {#solutions .section}

Contact DolphinDB technical support to examine the online recovery process with *dolphindb.log* and check if *meta.log* is successfully transferred. To be specific, look for log entries related to `<Error> RemoteRun [dfsSaveChunkRemote]` to identify the specific cause of the error.

**Parent topic:**[Error Code Reference](../../Troubleshooting/ErrorCode.md)

