Finding Compilation Errors

GAMS-IDE makes it easy to identify and fix compilation errors in your model.

Error Highlighting

When GAMS detects an error during compilation (or on save):

Red Squiggles: Errors in the source code are underlined with red squiggles. Hover over them to see the error message.
Problems Panel: All errors are listed in VS Code's "Problems" panel (usually at the bottom). clicking an error jumps to the location.

Error highlighting in editor

The Listing File (.lst)

By default, GAMS-IDE helps you navigate the GAMS listing file, which contains the authoritative error report.

Auto-Jump: When an error occurs, the extension can automatically open the .lst file and scroll to the first error.
Listing Navigation: In the listing file, you can click on error references to jump back to the source code.

Listing file with error

Troubleshooting Missing Errors

If you don't see errors:

Ensure Run Diagnostics on Save is enabled in Settings.
Check if your Main GAMS File is correctly configured.