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I have a fresh install of Anaconda, which came with Spyder 3.3.3. I used Anaconda Prompt to install Spyder 3.3.4. Then in Anaconda Navigator I select the gear over Spyder 3.3.3 and select Update. I get a message reading:

spyder==3.3.4 cannot be installed on this environment. Do you want to install the package on an existing environment or create a new environment?

I don't want to install this on a separate environment though. What's going on?

Edit: When I use Anaconda Prompt to update (not install, sorry) Spyder this is what I get:

WARNING: The conda.compat module is deprecated and will be removed in a future release. Collecting package metadata: done Solving environment: done

Package Plan

environment location: C:\ProgramData\Anaconda3

added / updated specs: - spyder

The following NEW packages will be INSTALLED:

conda-package-han~ pkgs/main/win-64::conda-package-handling-1.3.10-py37_0

The following packages will be UPDATED:

conda 4.6.11-py37_0 --> 4.7.5-py37_0

Proceed ([y]/n)? y

Preparing transaction: done Verifying transaction: done Executing transaction: done

(base) C:\Windows\system32>ET _sysp=%~dpA 'ET' is not recognized as an internal or external command, operable program or batch file.

(base) C:\Windows\system32>IF NOT EXIST "!_sysp!\Scripts\conda.exe" WARNING conda.base.context:use_only_tar_bz2(632): Conda is constrained to only using the old .tar.bz2 file format because you have conda-build installed, and it is <3.18.3. Update or remove conda-build to get smaller downloads and faster extractions. Collecting package metadata (repodata.json): done Solving environment: done

All requested packages already installed.

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  • From your question it sounds to me like you already installed 3.3.4 using Anaconda Prompt and Anaconda Navigator just didn't update itself properly. Are you sure you're still on 3.3.3 when you open up Spyder? Edit: Try typing conda list spyder in your Anaconda prompt to check. – Ian Kent Jun 28 '19 at 18:38
  • @IanKent This is what I get: # packages in environment at C:\Users\zeoco\Anaconda3: # # Name Version Build Channel spyder 3.3.3 py37_0 spyder-kernels 0.5.0 py37_0 – Zefyr Jun 28 '19 at 19:27
  • What happens when you type conda update spyder? – Ian Kent Jun 28 '19 at 19:30
  • That's the command I used when I updated (not installed, sorry) as in the original post. I edited the post to add that comment data. – Zefyr Jun 28 '19 at 20:21
  • Try conda update -c anaconda spyder and see if it's any different – Ian Kent Jun 28 '19 at 20:33
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I was getting exactly the same error as you have mentioned. Googling didn't provide any answer.

I removed all my other environments except the base environment and then updated all the packages through command prompt using conda update --all

Using just conda update spyder will also work I think, after removing all but the base environment.

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