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It seems that you are runnign gpt with /usr/lib/jvm/java-18-openjdk-amd64 which is causing the
Error: java.lang.ExceptionInInitializerError

We are looking at how to modify the gpt script so you can run gpt with java 8( 1.8.0) instead of java-18-openjdk-amd64.

You do not need to run gpt command in /home/fernando/Seadas/bin/. You can just give the absolute path of gpt. Please try /home/fernando/Seadas/bin/gpt /home/fernando/Escritorio/WorkflowEx01Graph.xml -p /home/fernando/Escritorio/WorkflowEx01.par -Pifile=/home/fernando/Escritorio/chl/A2020003181000.L2...

Since the start time of A2002255215500.L1A_LAC is 2002-09-12T21:56:03, the corresponding GEO/L1B/L2 files for A2002255215500.L1A_LAC are AQUA_MODIS.20020912T215603.GEO.hdf AQUA_MODIS.20020912T215603.L1B.hdf AQUA_MODIS_HKM.20020912T215603.L1B.hdf AQUA_MODIS_QKM.20020912T215603.L1B.hdf AQUA_MODIS.2002...

Unfortunately, SeaDAS 8.1.0 does not support gpt command line processing --

https://seadas.gsfc.nasa.gov/release-notes/version/8.1.0/

Also, Batch Processing can load the xml file that was built and saved through Graph Builder.

https://seadas.gsfc.nasa.gov/help-8.3.0/operators/graph_builder.html

I made a few modifications on the Read and Write block in your Example01.xml -- <node id="Read"> <operator>Read</operator> <sources/> <parameters class="com.bc.ceres.binding.dom.XppDomElement"> <file>${path}/${ifile}.${extention}</file> </parameters> </node> <node id="Write&...

I tried the example in https://seadas.gsfc.nasa.gov/help-8.2.0/GptCookbook/gptCookbookWorkflowEx01.html. 1. Since SeaDAS currently has issues with writing to files with NetCDF4-CF format, you should modify the content of WorkflowEx01.par to -- ifileExtension=nc ofile1Format=NetCDF4-BEAM ofile1Extens...

Could you please share the content of your xml file?

It's a bug that SeaDAS can't save the reprojected file in the netCDF-CF format. We fixed it. Hopefully the fix will be in the next release.

You can find the instruction on how to install SeaDAS processors on this page -- https://seadas.gsfc.nasa.gov/downloads/