PyTorch Geometric CUDA installation issues on Google Colab
I was working on a PyTorch Geometric project using Google Colab for CUDA support. Since it's library isn't present by default, I run:

!pip install --upgrade torch-scatter
!pip install --upgrade torch-sparse
!pip install --upgrade torch-cluster
!pip install --upgrade torch-spline-conv 
!pip install torch-geometric


Recently, while importing torch_geometric, owing to version upgrades, there's a CUDA version mismatch saying:


  RuntimeError: Detected that PyTorch and torch_sparse were compiled with different CUDA versions. PyTorch has CUDA version 10.1 and torch_sparse has CUDA version 10.0. Please reinstall the torch_sparse that matches your PyTorch install.


To solve this, I tried using conda for specific CUDA version as:

!conda install pytorch==1.4.0 cudatoolkit=10.0 -c pytorch

Yet, on running print(torch.version.cuda), I get 10.1 as the output and not 10.0 as I wanted. 

This is a recent error since it wasn't throwing up this issue in past week. Any best practice to solve this issue?

From their website

Try this

!pip install torch-geometric \
  torch-sparse==latest+cu101 \
  torch-scatter==latest+cu101 \
  torch-cluster==latest+cu101 \
  -f https://pytorch-geometric.com/whl/torch-1.4.0.html

