Save a Weka classifier without training it

Apologies if someone has already asked this question but I have not been able to find it.
I have indicated all the features for the different classes of my classifier in the Weka 2D segmentation panel and I have saved the classifier without training it (it was done with the option “save classifier”). The next time I load it (“Load Classifier”) in order to train it my images, a message appears telling me that there is an error and the classifier needs at least 2 feature examples.
How can I use it? Can I try the classifier after saving it? It took me a lot of time…

Thank you so much in advance.
Best,
Andrea

I ddont get why:DDDD

I mean, I’ve saved the classifier without training it but, theoretically, It supposes to function. Isn’t it? When I tried to save the data, Fiji was blocked :frowning:
By the way, how can i retrain a classifier? Is it possible?
Thanks a lot in advance""