Are this models for Tensorflow backend ot=r Theano backend?

I want to save the weights and load the weights in Keras with Tensorflow backend.

When I import ResNet50 model with Tensorflow backend I get errors

ValueError: Cannot feed value of shape (512, 256, 1, 1) for Tensor 'Placeholder_78:0', which has shape '(1, 1, 128, 512)'

Can I get the tensorflow weights fro ResNet50, VGG19, VGG16 models?

Thanks.