Issue: Install package gpflowopt

[SamirLamin]

Hello can you help me to solve this issue
ERROR: Could not find a version that satisfies the requirement GPflow==0.5.0 (from gpflowopt) (from versions: 1.4.1.linux-x86_64, 1.5.0.linux-x86_64, 1.0.0, 1.1.0, 1.1.1, 1.2.0, 1.3.0, 1.4.1, 1.5.0, 1.5.1, 2.0.0rc1, 2.0.0, 2.0.1, 2.0.2, 2.0.3, 2.0.4, 2.0.5, 2.1.0, 2.1.1, 2.1.2, 2.1.3, 2.1.4, 2.1.5, 2.2.0, 2.2.1, 2.3.0, 2.3.1, 2.4.0, 2.5.1, 2.5.2)
ERROR: No matching distribution found for GPflow==0.5.0

I tried to install in google colab and spyder but not working

[wangyexiang]

same issue

[LiuYang-1997]

I found another GPflow package. https://github.com/ashimb9/GPflow
This may be useful.

[baikangbo]

same issue. I hope the developer can update the install method of this useful package. Some dependencies may be out of date.