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[DonnaOliviaD]

Dear Jan,

Recently I have tried to get Photon up and running within Perseus and I started with the tutorial dataset that was posted here as well. The tutorial is very clear, so thanks for that!

However, when I get to the very last stage (Actually performing the Photon analysis) I get the following error:

Any help is greatly appreciated!

All the best (and stay healthy ;) Donna