I am trying to carry out an IsoCluster Unsupervised Classification and yesterday it worked but today when I tried to run the tool again, using the same files, I keep receiving this error:
ERROR 010211: Could not open the specified point file c:\users\michelle\appdata\local\temp\arc3c6e\\sigtmp~1.gsg. MLClassify failed!
I tried running the tool on both ArcGIS Pro 2.3.3 and ArcMap 10.6.1 but received the same error in both applications. It seems to be trying to access a signature file in one of the PC's temp folders and I've never experienced this before in the countless times I've run this tool until now. And, I didn't make any changes to my PC recently.
Has anyone experienced this problem before and knows how to solve it?