I am currently following the Level 1 Model Building: Dashboards course. I am trying to create a chart from my data, but the icon is greyed out. I cannot find any information about possible causes for this - any help would be appreciated!
Based on the picture you provided you will need to pivot your view to only have one dimension per axis. You can do this by clicking on the pivot icon in the top row and shifting a dimension to page selectors. Then, you should be able to select a graph to use.