Supervised classifications fail

[gpeltzer]

Supervised classification runs return error message with the following setting:
-Mac OS
-SNAP v 7.0 with latest updates
-Landsat image using 6 TM bands (subset 3000x3000)
-7 Vector Data training areas are defined using the polygon tool

• In classifier dialog window, the Landsat image is added in ProductSet-Reader
• In classifier parameters window all is let as default. 7 training areas are listed and 6 TM bands are listed.
• Output filename is default
  Error message: written in red in classifier window:
  java.lang.NullPointerException

Same error with other supervised classifiers (KNN, Minimum Distance)
I tried saving file with vectors and reopen it as suggested in the forum. It returns the same error message.
Unsupervised approaches worked fine.

Thanks for helping.
Gilles

[ABraun]

currently, classification only works with data reprojected to WGS 84:

Rndom forest classification steps

I reproject the data into Geographic Lat/Lon. After that, the values do not change. I try some times with some different data and I find out that in the classification step, it works with the Lat/Lon project.

Sentinel-2 Classification Problem

Dear Braun When I changed sentinel-2 coordinate system to wgs84, classification problem has solved completely. Thanks for your excellent support. Sincerely,

[gpeltzer]

It actually worked with reprojected data.
Thank you for the hint.