Problem with taxonomy classifier

[rparadiso (Rubina)]

Good morning,
I'm trying to make the taxonomy of my samples, but I have this problem ... can you help me?
thanks
qiime feature-classifier classify-sklearn --i-classifier gg-13-8-99-515-806-nb-classifier.qza --i-reads rep-seqs_250.qza --o-classification taxonomy.qza

Plugin error from feature-classifier:

The scikit-learn version (0.20.2) used to generate this artifact does not match the current version of scikit-learn installed (0.21.2). Please retrain your classifier for your current deployment to prevent data-corruption errors.

Debug info has been saved to /var/folders/nk/qyjfz4t11vn5vnx07bkphqrw0000gn/T/qiime2-q2cli-err-z6ujidi4.log

[Micro_Biologist (Jono Warren)]

The new version of qiime is using a different version of scikit-learn so you'll have to retrain your classifiers. Alternatively you can look for pre-trained classifiers such as these I made for silva database, or the official ones, which also includes green genes.