After the manager is installed using conda in ubuntu22.04, many nodes fail to be installed or even conflict with other nodes

[seanwhen]

I am ubuntu22.04 and found that the installation of most nodes will fail or lead to dependency conflicts among other nodes. Currently, all operations are performed in the conda environment. Do I need venv?
Is the file related to the mirror source configured because the network connection is often faulty?
Can you give a standard process for installing nodes, because it has failed for several days, and now everyone is afraid to install nodes

[seanwhen]

Now I do not click Install node in the manager interface, but "git clone...." under the path.
For each node, "pip install -r requirements.txt", previously thought that only need to git clone restart comfyUI will automatically install each node

[ltdrdata]

Show me the terminal log when failing.