Installation: Version of Tensor flow

Sorry, I'm trying to install the gcn package, it looks like it requires an older version of tensor flow

I initially tried to run:

pip install -r requirements.txt

in the terminal, but got the error:

ERROR: Could not find a version that satisfies the requirement tensorflow==1.15.4 (from versions: 2.5.0, 2.5.1, 2.5.2, 2.5.3, 2.6.0rc0, 2.6.0rc1, 2.6.0rc2, 2.6.0, 2.6.1, 2.6.2, 2.6.3, 2.6.4, 2.6.5, 2.7.0rc0, 2.7.0rc1, 2.7.0, 2.7.1, 2.7.2, 2.7.3, 2.8.0rc0, 2.8.0rc1, 2.8.0, 2.8.1, 2.8.2, 2.9.0rc0, 2.9.0rc1, 2.9.0rc2, 2.9.0, 2.9.1) ERROR: No matching distribution found for tensorflow==1.15.

I then installed tensor flow and tried again but then got the following error when trying python setup.py install:

error: Could not find suitable distribution for Requirement.parse('tensorflow<2.0,>=1.15.2')

So it looks like the recent tensor flow was too new.

I was wondering if there was an updated version of this software that works with modern versions of tf or pytorch?

ER