# PyMC3 Window10 Installation Issue

**URL:** <https://discourse.pymc.io/t/pymc3-window10-installation-issue/7597>\
**Category:** Questions\
**Created:** [June 13, 2021, 9:04pm UTC](https://discourse.pymc.io/t/pymc3-window10-installation-issue/7597 "2021-06-13T21:04:37Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![JDu](https://avatars.discourse-cdn.com/v4/letter/j/9de053/32.png) [@JDu](https://discourse.pymc.io/u/JDu)\
**Post date:** [June 13, 2021, 9:04pm UTC](https://discourse.pymc.io/t/pymc3-window10-installation-issue/7597/1 "2021-06-13T21:04:37Z")

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Hi,

I ran into an “environment” issue when I tried to install PyMC3 in my new HP Z-book computer running windows 10. Have anyone ran into the same issue and help? Thank you very much in advance.

Here is the output:

(mypm3env) PS C:\> conda install -c conda-forge pymc3  
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: failed with initial frozen solve. Retrying with flexible solve.  
Solving environment: -  
Found conflicts! Looking for incompatible packages.  
This can take several minutes. Press CTRL-C to abort.  
failed

UnsatisfiableError: The following specifications were found to be incompatible with each other:

Output in format: Requested package → Available versions

I followed the instruction and ran the following command in sequence:

conda create -c msys2 -c conda-forge -n mypm3env python=3.8 mkl-service libpython m2w64-toolchain scipy matplotlib pandas

conda activate mypm3env

conda install -c conda-forge pymc3

```auto

```

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<div class="post-metadata">

**Author:** ![vtac](https://avatars.discourse-cdn.com/v4/letter/v/8797f3/32.png) [@vtac](https://discourse.pymc.io/u/vtac)\
**Post date:** [June 14, 2021, 1:40am UTC](https://discourse.pymc.io/t/pymc3-window10-installation-issue/7597/2 "2021-06-14T01:40:38Z")

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I ran into a similar issue in MacOS. I think this problem is not about the OS but about Conda itself. I have been having issues installing many packages with Conda lately.

I ended up solving the problem by installing PyMC3 with Pip, so I would try that if I were you.