# In file Th\_quasibestprec5.msh, Erreur Lecture 6, good=0, bad=0, fail=4, eof=2 Line 40779

**URL:** https://community.freefem.org/t/in-file-th-quasibestprec5-msh-erreur-lecture-6-good-0-bad-0-fail-4-eof-2-line-40779/2225
**Category:** General Discussion
**Created:** [January 16, 2023, 6:35pm UTC](https://community.freefem.org/t/in-file-th-quasibestprec5-msh-erreur-lecture-6-good-0-bad-0-fail-4-eof-2-line-40779/2225 "2023-01-16T18:35:14Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![luca.liverotti](https://avatars.discourse-cdn.com/v4/letter/l/977dab/32.png) [@luca.liverotti](https://community.freefem.org/u/luca.liverotti)
#### Post date: [January 16, 2023, 6:35pm UTC](https://community.freefem.org/t/in-file-th-quasibestprec5-msh-erreur-lecture-6-good-0-bad-0-fail-4-eof-2-line-40779/2225/1 "2023-01-16T18:35:14Z")

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Hi guys.  
Because of my research needs, I am trying to modify a mesh starting from the .msh file.  
The problem is the following: sometimes I have no problem when reading by using readmesh the .msh file I have created while other times I get this error:

In file Th\_quasibestprec5.msh, Erreur Lecture 6, good=0, bad=0, fail=4, eof=2 Line 40779

Do you have idea about the meaning of such error?

Thank you so much

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### Author: ![frederichecht](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.freefem.org/frederichecht/32/15_2.png) [@frederichecht](https://community.freefem.org/u/frederichecht)
#### Post date: [January 17, 2023, 2:38pm UTC](https://community.freefem.org/t/in-file-th-quasibestprec5-msh-erreur-lecture-6-good-0-bad-0-fail-4-eof-2-line-40779/2225/2 "2023-01-17T14:38:36Z")

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I think the format of the file is wrong!  
the error is fail