I am trying to classify a mosaic-ed (from 3 S2 L1C images) and subset-ted (by a polygon) image. I made the training polygons in SNAP. When classifying, it errors the
Null Pointer Exception.
From this thread. It seems the solution is reprojecting to
Geographic Lat/Lon (WGS 84). First of all, how to check the projection of the product? It may be already projected in that projection.
When I tried reprojecting it to
Geographic Lat/Lon (WGS 84) it errors now:
Operator Exception. What should be my next step? Or to solve it?