# Fail test at install Richard.edp

**URL:** <https://community.freefem.org/t/fail-test-at-install-richard-edp/1475>\
**Category:** FreeFEM installation\
**Created:** [February 6, 2022, 3:21pm UTC](https://community.freefem.org/t/fail-test-at-install-richard-edp/1475 "2022-02-06T15:21:18Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![mbletry](https://avatars.discourse-cdn.com/v4/letter/m/3be4f8/32.png) [@mbletry](https://community.freefem.org/u/mbletry)\
**Post date:** [February 6, 2022, 3:21pm UTC](https://community.freefem.org/t/fail-test-at-install-richard-edp/1475/1 "2022-02-06T15:21:18Z")

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Hello,

I have installed freefem according to [Installation guide](https://doc.freefem.org/introduction/installation.html#compilation-on-ubuntu) on ubuntu 18.04 and I have a fail after make -j 16 check :  
FAIL: Richard.edp  
I don’t know whether this is really really bad or if one can work in such a configuration - for educational purposes right now, and possibly research in the future ?

Any help would be much appreciated !

Marc

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**Author:** ![vlaude](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.freefem.org/vlaude/32/939_2.png) [@vlaude](https://community.freefem.org/u/vlaude)\
**Post date:** [February 9, 2022, 2:33pm UTC](https://community.freefem.org/t/fail-test-at-install-richard-edp/1475/2 "2022-02-09T14:33:44Z")

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Richard.edp is inside folder examples/misc/  
Can you finish the installation (with the next step `sudo make install`) and then run ff++ on the particular file?  
Try both with and without graphics:

```auto
> Freefem++ Richard.edp
> Freefem++-nw Richard.edp

```

On my 20.04 Ubuntu installation the first execution fails. The trouble comes from the plot() command on line 120. Just change that line to

```auto
 plot(h,wait=0,cmm=scmm,viso=viso,value=1,fill=true);

```

and the script will run smoothly.  
[The problem comes from isoline plotting]

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<div class="post-metadata">

**Author:** ![mbletry](https://avatars.discourse-cdn.com/v4/letter/m/3be4f8/32.png) [@mbletry](https://community.freefem.org/u/mbletry)\
**Post date:** [February 9, 2022, 3:03pm UTC](https://community.freefem.org/t/fail-test-at-install-richard-edp/1475/3 "2022-02-09T15:03:01Z")

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Thank you so much Vincent, works like a charm !!!

Marc