# Install Error for additional packages

**URL:** https://community.freefem.org/t/install-error-for-additional-packages/653
**Category:** FreeFEM installation
**Created:** [November 13, 2020, 6:40am UTC](https://community.freefem.org/t/install-error-for-additional-packages/653 "2020-11-13T06:40:46Z")
**Posts on this page:** 1
**Showing post:** 4

<div class="post-metadata">

### Author: ![prj](https://avatars.discourse-cdn.com/v4/letter/p/ecae2f/32.png) [@prj](https://community.freefem.org/u/prj)
#### Post date: [November 13, 2020, 8:22am UTC](https://community.freefem.org/t/install-error-for-additional-packages/653/4 "2020-11-13T08:22:37Z")

</div>

You need to run `FreeFem++-mpi.exe`, not `FreeFem++.exe`, see [this](https://community.freefem.org/t/hydrodynamic-stability-implementation-in-freefem/622/4) answer in another thread on how to use it from the command prompt.

---

_[View the full topic](https://community.freefem.org/t/install-error-for-additional-packages/653)._