Wizard classification unselectable

[KatherineMcNulty]

Hello,

I have been trying to update a classification scheme I've made and it keeps failing. I've saved the progress in the training sample but I can't select the tool anymore. I've tried restarting my computer and it won't help. I don't want to start a new project because there are so many layers I don't want to convert them all then upload to a new project.

[DanPatterson]

Is the image selected in the table of contents?

There are two situations where it is disabled

Image Classification Wizard—ArcGIS Pro | Documentation

The Classification Wizard is disabled if the active map is a 3D scene, or if the highlighted image is not a multiband image.

Of course, you could always skip the wizard and use the underlying tools, for example:

An overview of the Classification and Pattern Recognition toolset—ArcGIS Pro | Documentation