What Do I Do If "Could not find a version that satisfies the requirement xxx" Is Displayed When "pip3.7.5 install" Is Run?

Symptom

When installing dependencies using the command pip3.7.5 install xxx, you see a prompt indicating that your network is disconnected and the message "Could not find a version that satisfies the requirement xxx". You should check whether the sources are available using the apt-get update command. The error message is displayed as follows.

Possible Cause

The pip source is not configured.

Solution

Configure the pip source as follows:

1. Run the following command as the ATC installation user.

   cd ~/.pip

   If a message indicating that the directory does not exist is displayed, run the following commands to create a directory.

   mkdir ~/.pip 
   cd ~/.pip

   Run the following command to create a pip.conf file in the .pip directory.

   touch pip.conf

2. Edit the pip.conf file.

   Run the vi pip.conf command to open the pip.conf file and add the following content to the file.

   [global]
   #Configure the source as required.
   index-url=http://xxx
   [install]
   #Configure the trusted host as required.
   trusted-host=xxx

3. Run the :wq! command to save the file.