Resource Compiler Error RC2144

PRIMARY LANGUAGE ID not a number

Remarks

The PRIMARY LANGUAGE ID must be a hexadecimal language ID. See Language and Country/Region Strings in the Run-Time Library Reference for a list of valid Language IDs.

This error can also occur if resources have been added and deleted from the .RC file using a tool. To fix this issue, open the .RC file in a text editor and clean up any unused resources manually.