# S00014 {#S00014}

## Error Code {#error_code .section}

S00014

## Error Message {#error_message .section}

`Incompatible server versions. RefId: S00014`

## Probable Causes {#probable_causes .section}

DolphinDB server 3.00 and above cannot use a communication protocol incompatible with servers of major versions below 3.00.

This error occurs when a server running on 3.00.x attempts to use the `remoteRun` function to send a script or function to server 2.00.x or 1.30.x for remote execution.

## Solutions {#solutions .section}

-   Avoid connecting to servers one or more major versions lower.
-   Use the `remoteRunCompatible` function, which bypasses version checking. Exercise caution when using it due to potential compatibility risks.

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

