sergeicu

Not compatible with numpy=1.20

1

When running deepMedic model only (not tinyCNN), the following error is thrown: `Cannot convert a symbolic Tensor (net/strided_slice_59:0) to a numpy array.` Solution is [here](https://stackoverflow.com/questions/58479556/notimplementederror-cannot-convert-a-symbolic-tensor-2nd-target0-to-a-numpy) TLDR; downgrade numpy to 1.19