Spatial Analyst tools not working in ModelBuilder

Discussion created by Ljohnson12440 on Oct 4, 2012
When I try to open a Spatial Analyst tool (e.g. Slope) within ModelBuilder, I get an error message saying that I do not have the necessary license to execute the tool. I have a home use license, but my Spatial Analyst license is activated, the extension is turned on, and I am able to execute Spatial Analyst tools within ArcMap.