The best video for your current problem (blank Resource Graph) is:
🎥 Resource Graph View in Microsoft Project
Microsoft Project - Lesson 58 - Viewing Resource Graph 🎥
This short video specifically explains:
How to open Resource Graph
How to switch between resources
How Microsoft Project displays resource workload
Why the graph may appear empty
After Watching, Test This in Your Schedule
Step 1
Go to View → Resource Sheet
Make sure you have resources such as:
Mason Team
Electrician Team
Plumbing Team
Step 2
Go to Gantt Chart
Assign a resource to at least one task:
| Task | Resource |
|---|---|
| Brick Wall | Mason Team |
Step 3
Return to Resource Graph
Press Page Down on your keyboard.
Now you should see bars appearing.
The Resource Graph only displays data when:
Resources exist
Resources are assigned to tasks
-
A resource is selected in the graph (MPUG)
Additional Video (Resource Management)
Master Resource Management Using Microsoft Project in 20 Minutes! 🎥
This is more advanced and covers:
Resource assignment
Resource workload
Resource conflicts
Resource leveling
Based on your screenshot, I am about 90% sure the issue is that your resources are not assigned to tasks yet, or no resource is currently selected in the Resource Graph. If you send a screenshot of your Resource Sheet and Gantt Chart with Resource Names column, I can pinpoint the exact cause.