title: conda environment has no name visible in conda env list - how do I activate it at the shell?
body: <p>I have created an environment called B3 inside anaconda-navigator. It works fine if launched from within navigator.</p>
  
  <p>However, when I want to activate it at the shell, I get 'could not find environmnet B3.'</p>
  
  <p>If I use conda env list, the environment is visible but its name is blank. If I try using the file path instead, I get 'Not a conda environment.'</p>
  
  <p>Why is the name missing, and how can I activate it from the shell?
  <a href="https://i.stack.imgur.com/uEGRR.png" rel="noreferrer"><img src="https://i.stack.imgur.com/uEGRR.png" alt="enter image description here"></a></p>