Cannot install spyder 5.1.5 using conda.

Issue Report Checklist

• Searched the issues page for similar reports
• Read the relevant sections of the Spyder Troubleshooting Guide and followed its advice
• Reproduced the issue after updating with conda update spyder (or pip, if not using Anaconda)
• Could not reproduce inside jupyter qtconsole (if console-related)
• Tried basic troubleshooting (if a bug/error)
  • Restarted Spyder
  • Reset preferences with spyder --reset
  • Reinstalled the latest version of Anaconda
  • Tried the other applicable steps from the Troubleshooting Guide
• Completed the Problem Description, Steps to Reproduce and Version sections below

Problem Description

I have been using spyder version 5. (cannot remember the last digit) without any issues. Opened spyder this morning, got a prompt to update to spyder 5.1.5. The prompt said I should first update Anaconda using (conda update anaconda) and conda install spyder=5.1.5 to update the spyder.

I am getting this error: Your Python environment or installation doesn’t have the spyder‑kernels module or the right version of it installed (>= 2.1.0 and < 2.2.0). Without this module is not possible for Spyder to create a console for you.

What steps reproduce the problem?

1. I updated anaconda and got error message when I try to install spyder==5.1.5
2. I uninstalled anaconda and re-installed anaconda. The current spyder version is now 4.2.5. Debug tool is not still working
3. I installed a standalone version of spyder 5.1.5. It seems to be working fine but I do not have access to libraries I installed using conda. So, I changed the Python Interpreter to “/Users/telemaharry/opt/anaconda3/bin/python” in the standalone spyder. I got the following error message - Python environment or installation doesn’t have the spyder‑kernels module. That I should install spyder-kernels=2.1.
4. I checked the Dependencies for the standalone spyder 5.1.5 and the spyder-kernels is 2.1.1

What is the expected output? What do you see instead?

Paste Traceback/Error Below (if applicable)

Error message when installing 

(base) telemaharry@Telemas-MBP ~ % conda install spyder=5.1.5
Collecting package metadata (current_repodata.json): done
Solving environment: failed with initial frozen solve. Retrying with flexible solve.
Solving environment: failed with repodata from current_repodata.json, will retry with next repodata source.
Collecting package metadata (repodata.json): done
Solving environment: - 
The environment is inconsistent, please check the package plan carefully
The following packages are causing the inconsistenc\ 

  - defaults/osx-64::conda-build==3.21.4=py38hecd8cb5_0
failed with initial frozen solve. Retrying with flexible solve.
Solving environment: / 

Your Python environment or installation doesn't have the spyder‑kernels module or the right version of it installed (>= 2.1.0 and < 2.2.0). Without this module is not possible for Spyder to create a console for you.

You can install it by running in a system terminal:

conda install spyder‑kernels=2.1

or

pip install spyder‑kernels==2.1.*

![image](https://user-images.githubusercontent.com/84111462/138377502-f987fedb-41a2-49c0-baf6-c03f67fe0a1b.png)

Versions

• Spyder version: 4.2.5
• Python version: 3.8.8
• Qt version: 5.9.7
• PyQt version: 5.9.2
• Operating System name/version: macOS Big Sur

Dependencies

This is gotten from spyder 4.2.5
# Mandatory:
applaunchservices >=0.1.7       :  0.2.1 (OK)
atomicwrites >=1.2.0            :  1.4.0 (OK)
chardet >=2.0.0                 :  4.0.0 (OK)
cloudpickle >=0.5.0             :  2.0.0 (OK)
diff_match_patch >=20181111     :  20200713 (OK)
intervaltree >=3.0.2            :  3.1.0 (OK)
IPython >=7.6.0                 :  7.27.0 (OK)
jedi =0.17.2                    :  0.17.2 (OK)
jsonschema >=3.2.0              :  3.2.0 (OK)
keyring >=17.0.0                :  23.1.0 (OK)
nbconvert >=4.0                 :  6.1.0 (OK)
numpydoc >=0.6.0                :  1.1.0 (OK)
parso =0.7.0                    :  0.7.0 (OK)
pexpect >=4.4.0                 :  4.8.0 (OK)
pickleshare >=0.4               :  0.7.5 (OK)
psutil >=5.3                    :  5.8.0 (OK)
pygments >=2.0                  :  2.10.0 (OK)
pylint >=1.0                    :  2.9.6 (OK)
pyls >=0.36.2;<1.0.0            :  0.36.2 (OK)
pyls_black >=0.4.6              :  0.4.6 (OK)
pyls_spyder >=0.3.2             :  0.3.2 (OK)
qdarkstyle >=2.8;<3.0           :  2.8.1 (OK)
qtawesome >=0.5.7               :  1.0.2 (OK)
qtconsole >=5.0.3               :  5.1.1 (OK)
qtpy >=1.5.0                    :  1.10.0 (OK)
rtree >=0.8.3                   :  0.9.7 (OK)
setuptools >=39.0.0             :  58.0.4 (OK)
sphinx >=0.6.6                  :  4.2.0 (OK)
spyder_kernels >=1.10.2;<1.11.0 :  1.10.2 (OK)
textdistance >=4.2.0            :  4.2.1 (OK)
three_merge >=0.1.1             :  0.1.1 (OK)
watchdog >=0.10.3;<2.0.0        :  1.0.2 (OK)
zmq >=17                        :  22.2.1 (OK)

# Optional:
cython >=0.21                   :  0.29.24 (OK)
matplotlib >=2.0.0              :  3.4.3 (OK)
numpy >=1.7                     :  1.21.2 (OK)
pandas >=1.1.1                  :  1.3.3 (OK)
scipy >=0.17.0                  :  1.7.1 (OK)
sympy >=0.7.3                   :  1.8 (OK)

[mattslezak-shell]

A workaround that worked for me: Uninstall Spyder from Anaconda Navigator, then install it again in Navigator. This way, Spyder 5.1.5 was installed without any issue. Could also work from terminal, but I did not try.

Thanks for posting. After waiting for days (like 3-5) and having conda install spyder=5.1.5 fail with conflicting packages everywhere, this worked in about 20m. Note that various packages will be randomly uninstalled. Such as pandas, matplotlib, openpyxl, and others. You’ll just have to install them via conda (which actually has no problem installing them quickly after the uninstall / install Spyder 5.1.5).

[carsten-bruckhaus]

I can confirm that updating in the way @Telemaharry described does not work on a fresh installation (both OS and Anaconda) and results in an inconsistent environment as he describes. I was on the default version that came with Anaconda3 2021.5 (Spyder 4.x). Various attempts of conda update conda, conda update anaconda, conda update --all, spyder --reset did not solve the problem, neither did removing the Anaconda directory and reinstalling Anaconda.

A workaround that worked for me: Uninstall Spyder from Anaconda Navigator, then install it again in Navigator. This way, Spyder 5.1.5 was installed without any issue. Could also work from terminal, but I did not try.