Add troubleshooting item for missing gdk command
What does this merge request do and why?
Add troubleshooting item for what must be one of the most common issues.
Impacted categories
The following categories relate to this merge request:
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gdk-reliability - e.g. When a GDK action fails to complete. -
gdk-usability - e.g. Improvements or suggestions around how the GDK functions. -
gdk-performance - e.g. When a GDK action is slow or times out.
Merge request checklist
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This change is backward compatible. If not, please include steps to communicate to our users. -
Tests added for new functionality. If not, please raise an issue to follow-up. -
Documentation added/updated, if needed. -
Announcement added, if change is notable. -
gdk doctortest added, if needed. -
Add the ~highlightlabel if this MR should be included in theCHANGELOG.md.