I can't run a Maximum Likelihood Classification because an Error 000885 says my input signature file does not have a file extension but it actually does as you can see in the picture.
What am I doing wrong?
As troubleshot by @Paul, the error message is being triggered because you have placed your
*.gsg file inside of a file geodatabase folder (
It seems like the Maximum Likelihood Classification tool is getting confused by this.
However, the error can be easily avoided by ensuring that your
*.gsg file is NOT inside of a file geodatabase folder (
There may be many other situations where the same or similar errors can be triggered so some advice offered here by @ChrisW etc is that although a file geodatabase (
*.gdb) is a Windows folder it is unwise to store anything that is not part of a file geodatabase inside of its folder.