Hello,
I got the same issue on ArcGIS Pro 2.7 and frustratingly haven't found neither an explanation nor a solution for the error.
ERROR 032659 updateParameters Error: Traceback (most recent call last):
File "c:\program files\arcgis\pro\Resources\ArcToolbox\toolboxes\Image Analyst Tools.tbx\TrainDeepLearningModel.tool\tool.script.validate.py", line 261, in <module>
File "c:\program files\arcgis\pro\Resources\ArcToolbox\toolboxes\Image Analyst Tools.tbx\TrainDeepLearningModel.tool\tool.script.validate.py", line 117, in updateParameters
backbone_list = training_model._supported_backbones()
File "C:\Users\p.funovits\AppData\Local\ESRI\conda\envs\arcgispro-py3-clone3\lib\site-packages\arcgis\learn\models\_classifier.py", line 179, in _supported_backbones
return [*_resnet_family, models.mobilenet_v2.__name__]
NameError: name '_resnet_family' is not defined
I'm getting peculiar errors with more than one of the available models btw. Mask RCNN is _the_ only one I get results from at all, the rest doesn't really work for me.
Any input welcome!
And yes, I re-cloned the standard environment and re-installed the deep learning packages and so forth. No luck.