# Installation of compas-igs

**URL:** <https://forum.compas-framework.org/t/installation-of-compas-igs/1050>\
**Category:** Uncategorized\
**Created:** [August 1, 2025, 10:23pm UTC](https://forum.compas-framework.org/t/installation-of-compas-igs/1050 "2025-08-01T22:23:06Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Niclas\_Brandt](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.compas-framework.org/niclas_brandt/32/732_2.png) [@Niclas\_Brandt](https://forum.compas-framework.org/u/Niclas_Brandt)\
**Post date:** [August 1, 2025, 10:23pm UTC](https://forum.compas-framework.org/t/installation-of-compas-igs/1050/1 "2025-08-01T22:23:06Z")

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Hi:) I wanted to install compas-igs on my windows computer (Windows 11) using anaconda. Itroed to follow the instruction on GitHub:

> <https://github.com/BlockResearchGroup/compas-IGS/blob/main/gitbook/quick-start/quick-install.md>

But I always get this error in the first step: conda env create -f [https://blockresearchgroup.github.io/compas-IGS2/environment.yml](https://blockresearchgroup.github.io/compas-IGS2/environment.yml)

Error:  
Preparing transaction: done Verifying transaction: done Executing transaction: done ERROR conda.core.link:\_execute(1029): An error occurred while installing package ‘conda-forge::python-3.12.11-h3f84c4b\_0\_cpython’. Rolling back transaction: done [Errno 13] Permission denied: ‘C:\\Users\\nicla\\miniconda3\\envs\\igs-dev\\pythonw.exe’ ()

Do you maybe know whats the issue?🙂

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**Author:** ![tomvanmele](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.compas-framework.org/tomvanmele/32/13_2.png) [@tomvanmele](https://forum.compas-framework.org/u/tomvanmele)\
**Post date:** [August 21, 2025, 8:47am UTC](https://forum.compas-framework.org/t/installation-of-compas-igs/1050/2 "2025-08-21T08:47:57Z")

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hi niclas,

since this seems to be a permission problem, have you tried running the installation “as administrator”?

best,  
tom