There is an instance of anaconda navigator already running error

Question

Previously my anaconda navigator was not responding so I have rebooted my computer and now when I am trying to open anaconda navigator it pop-ups an error with "there is an instance of anaconda navigator already running".

OS: Windows 10

Answer 1

I met the same problem a few days ago. I found the anaconda navigator will start a process called pythonw. So the following is my solution:

1. open a cmd window;
2. use command tasklist | findstr "pythonw" to find the pid of pythonw, like 37200;
3. use command tskill 37200 to kill the process.

By the way, my OS is Windows.

Answer 2

one of the following will solve your issue in ubuntu:

killall Anaconda-Navigator 

anaconda-navigator --reset

Answer 3

I got the same error in MAC. logoff & login did not resolve the issue and the below command solved my issue in mac. Restart not required.

killall python

Answer 4

Here is the step you can use to solve this issue quickly.

1. Open Task Manager or use shortcut key Ctrl+Shift+Esc.
2. Find Python process in the list.
3. Kill those processes by clicking on it and click End task.

Then open Anaconda Navigator again.

Answer 5

The following steps worked for me in windows. You can do the following.

1. tasklist | findstr "pythonw" The PID of the processes will get displayed.

2. taskkill /pid "PID" (without quotes) /f

This will successfully kill the Anaconda Navigator task.