# Error "définitions multiples de MMG" installing FreeFem 4.6 on Ubuntu 22.04.3 LTS

**URL:** <https://community.freefem.org/t/error-definitions-multiples-de-mmg-installing-freefem-4-6-on-ubuntu-22-04-3-lts/2965>\
**Category:** FreeFEM installation\
**Created:** [February 14, 2024, 4:43pm UTC](https://community.freefem.org/t/error-definitions-multiples-de-mmg-installing-freefem-4-6-on-ubuntu-22-04-3-lts/2965 "2024-02-14T16:43:12Z")\
**Posts on this page:** 1\
**Showing post:** 7

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**Author:** ![prj](https://avatars.discourse-cdn.com/v4/letter/p/ecae2f/32.png) [@prj](https://community.freefem.org/u/prj)\
**Post date:** [February 14, 2024, 5:40pm UTC](https://community.freefem.org/t/error-definitions-multiples-de-mmg-installing-freefem-4-6-on-ubuntu-22-04-3-lts/2965/7 "2024-02-14T17:40:56Z")

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Please start from scratch (rm your FreeFem-sources folder and clone/download again), you are probably trying to do `make petsc-slepc` from FreeFEM 4.6, which is obsolete. There is no occurence of `env python` in neither FreeFEM nor PETSc, so you are using outdated files. The newer versions are using `python3` indeed.

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