# Conda update --all --force-reinstall doesn't repair ipython error

**URL:** <https://forum.anaconda.com/t/conda-update-all-force-reinstall-doesnt-repair-ipython-error/96526>\
**Category:** Anaconda & Miniconda\
**Created:** [July 11, 2025, 9:24pm UTC](https://forum.anaconda.com/t/conda-update-all-force-reinstall-doesnt-repair-ipython-error/96526 "2025-07-11T21:24:29Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![dias.joaocarlos](https://avatars.discourse-cdn.com/v4/letter/d/c2df01/32.png) [@dias.joaocarlos](https://forum.anaconda.com/u/dias.joaocarlos)\
**Post date:** [July 11, 2025, 9:24pm UTC](https://forum.anaconda.com/t/conda-update-all-force-reinstall-doesnt-repair-ipython-error/96526/1 "2025-07-11T21:24:30Z")

</div>

I have a desktop with an installation of miniconda, and I have 2 environments besides the base environment. After some failures, about a 1-2 years ago, I had to create a new environment named “main” with the packages I needed (like numpy, pandas, ipython, jupyter, …, tensorflow…).

After that, after some difficulties with the Windows 11 itself, I tried to call ipython in the environment “main”: it gave the error of ModuleNotFound (prompt-toolkit). Apparently, ipython is ok in other environment of mine.

Thus after trying remove and reinstalling ipython, which didn’t work, I ran:

`conda update --all --force-reinstall`

Apparently it went well.

However, when I tried to run ipython, it gave exactly the same error as before.

What can I do? Kill this environment and create another (e.g. “mainenv”). How?

I am running a recent version of python3 and conda.

Note: Meanwhile I tried to correct my Window environment (sfc /scannow and dism …).