Anaconda Navigator Won't Launch After A Conda Install Tkinter

I have been using conda and anaconda for a few weeks without any issue (with pythonv 3.6). However since I installed tkinter I cannot open the anaconda navigator nor spyder anymore

Solution 1:

As you can see from the output of your conda install command, when you try to install tkinter into your root conda environment a number of packages already installed there need to be downgraded in order to be compatible with tkinter. This is almost certainly what then causes problems with launching Anaconda Navigator.

Instead of installing new packages into the root conda env, you should create a new one and specify the packages you want to use there:

conda create -n myenv tk python

where myenv is the name you choose for your new environment and tk python is the list of packages you want to install - you can add any further ones to this list or install them later. (Usually you don't need to specify python itself as most packages are dependent on it, but it appears tk isn't one of them.)

To use the new environment, you then need to activate it, and/or make sure your IDE is configured to use the Python interpreter for that environment - see the conda docs for more help.