# Errors on Compilation in Ubuntu
**URL:** https://community.freefem.org/t/errors-on-compilation-in-ubuntu/219
**Category:** FreeFEM installation
**Created:** [January 13, 2020, 8:14pm UTC](https://community.freefem.org/t/errors-on-compilation-in-ubuntu/219 "2020-01-13T20:14:26Z")
**Posts on this page:** 19
**Page:** 1
### Author:  [@ylnz7](https://community.freefem.org/u/ylnz7)
#### Post date: [January 13, 2020, 8:14pm UTC](https://community.freefem.org/t/errors-on-compilation-in-ubuntu/219/1 "2020-01-13T20:14:26Z")
Hello,
I got such errors when compiling the FreeFem++ in ubuntu 18.1:
File “/home/ylnz7/FreeFem-sources/3rdparty/ff-petsc/petsc
3.12.2/config/BuildSystem/nargs.py”, line 360, in setValue
raise ValueError('Invalid directory: ‘+str(dir)+’ for key '+str(self.key))
test -f petsc-3.12.2/fr/lib/petsc/conf/petscvariables
Makefile:237: recipe for target ‘petsc-3.12.2/tag-conf-real’ failed
make: \*\*\* [petsc-3.12.2/tag-conf-real] Error 1
what should I do?
---
### Author:  [@prj](https://community.freefem.org/u/prj)
#### Post date: [January 13, 2020, 8:40pm UTC](https://community.freefem.org/t/errors-on-compilation-in-ubuntu/219/2 "2020-01-13T20:40:39Z")
Could you please share your FreeFEM `config.log`? We are not dispatching the correct options to PETSc configure which makes it crash. Thanks.
You may also want to to compile the develop branch.
---
### Author:  [@ylnz7](https://community.freefem.org/u/ylnz7)
#### Post date: [January 14, 2020, 12:09am UTC](https://community.freefem.org/t/errors-on-compilation-in-ubuntu/219/3 "2020-01-14T00:09:47Z")
Thanks for the reply! Below is the log file I found. Not sure if I truly understand your advice. What do you mean exactly “the develop branch”? Thanks.
## ----------------------
## Running config.status.
## ----------------------
This file was extended by FreeFEM config.status 4.4-3, which was
generated by GNU Autoconf 2.69. Invocation command line was
CONFIG\_FILES =
CONFIG\_HEADERS =
CONFIG\_LINKS =
CONFIG\_COMMANDS =
$ …/…/config.status --file=Makefile.inc:Makefile-PETSc.inc
on LAPTOP-6I03JEAE
config.status:1202: creating Makefile.inc
## ----------------------
## Running config.status.
## ----------------------
This file was extended by FreeFEM config.status 4.4-3, which was
generated by GNU Autoconf 2.69. Invocation command line was
CONFIG\_FILES =
CONFIG\_HEADERS =
CONFIG\_LINKS =
CONFIG\_COMMANDS =
$ …/…/config.status --file=Makefile.inc:Makefile-PETSc.inc
on LAPTOP-6I03JEAE
config.status:1202: creating Makefile.inc
---
### Author:  [@prj](https://community.freefem.org/u/prj)
#### Post date: [January 14, 2020, 5:40am UTC](https://community.freefem.org/t/errors-on-compilation-in-ubuntu/219/4 "2020-01-14T05:40:35Z")
This is not the full file `FreeFem-sources/config.log` (it should have around 10k lines of text). To use the develop branch, try `git clone -b develop https://github.com/FreeFem/FreeFem-sources`. If you don’t have Git, download instead this [archive](https://github.com/FreeFem/FreeFem-sources/archive/b9837c197ee893fa8e9359aab8f1cc1b746265c4.zip).
---
### Author:  [@ylnz7](https://community.freefem.org/u/ylnz7)
#### Post date: [January 14, 2020, 6:50pm UTC](https://community.freefem.org/t/errors-on-compilation-in-ubuntu/219/5 "2020-01-14T18:50:03Z")
I see. Please check the attached log file.
[config.log](https://community.freefem.org/uploads/short-url/fZnjZg78dI4gr8an2whRlTOAHFW.log) (448.0 KB)
---
### Author:  [@ylnz7](https://community.freefem.org/u/ylnz7)
#### Post date: [January 14, 2020, 8:35pm UTC](https://community.freefem.org/t/errors-on-compilation-in-ubuntu/219/6 "2020-01-14T20:35:04Z")
And also I tried the develop branch, it faced the same problems.
---
### Author:  [@prj](https://community.freefem.org/u/prj)
#### Post date: [January 14, 2020, 9:10pm UTC](https://community.freefem.org/t/errors-on-compilation-in-ubuntu/219/7 "2020-01-14T21:10:22Z")
You don’t have BLAS installed on your system. Please install BLAS, then try again.
---
### Author:  [@ylnz7](https://community.freefem.org/u/ylnz7)
#### Post date: [January 14, 2020, 10:04pm UTC](https://community.freefem.org/t/errors-on-compilation-in-ubuntu/219/8 "2020-01-14T22:04:11Z")
I tried
git clone [http://github.com/Reference-LAPACK/lapack](http://github.com/Reference-LAPACK/lapack)
and ./reconfigure and make check, it gives me the following errors
Makefile:50: recipe for target ‘dggath’ failed
make[8]: \*\*\* [dggath] Error 127
make[8]: Leaving directory ‘/home/ylnz7/FreeFem-sources/3rdparty/scotch/scotch\_6.0.4/src/scotch’
Makefile:90: recipe for target ‘ptscotch’ failed
make[7]: \*\*\* [ptscotch] Error 2
make[7]: Leaving directory ‘/home/ylnz7/FreeFem-sources/3rdparty/scotch/scotch\_6.0.4/src/scotch’
Makefile:98: recipe for target ‘ptscotch’ failed
make[6]: \*\*\* [ptscotch] Error 2
make[6]: Leaving directory ‘/home/ylnz7/FreeFem-sources/3rdparty/scotch/scotch\_6.0.4/src’
Makefile:68: recipe for target ‘scotch\_6.0.4/FAIT-mpi’ failed
make[5]: \*\*\* [scotch\_6.0.4/FAIT-mpi] Error 2
make[5]: Leaving directory ‘/home/ylnz7/FreeFem-sources/3rdparty/scotch’
Makefile:54: recipe for target ‘FAIRE’ failed
make[4]: \*\*\* [FAIRE] Error 2
make[4]: Leaving directory ‘/home/ylnz7/FreeFem-sources/3rdparty/scotch’
Makefile:932: recipe for target ‘compile-dir’ failed
make[3]: \*\*\* [compile-dir] Error 2
make[3]: Leaving directory ‘/home/ylnz7/FreeFem-sources/3rdparty’
Makefile:942: recipe for target ‘tag-compile-pkg’ failed
make[2]: \*\*\* [tag-compile-pkg] Error 1
make[2]: Leaving directory ‘/home/ylnz7/FreeFem-sources/3rdparty’
Makefile:577: recipe for target ‘install-recursive’ failed
make[1]: \*\*\* [install-recursive] Error 1
make[1]: Leaving directory ‘/home/ylnz7/FreeFem-sources/3rdparty’
Makefile:784: recipe for target ‘install-recursive’ failed
make: \*\*\* [install-recursive] Error 1
---
### Author:  [@prj](https://community.freefem.org/u/prj)
#### Post date: [January 14, 2020, 10:09pm UTC](https://community.freefem.org/t/errors-on-compilation-in-ubuntu/219/9 "2020-01-14T22:09:41Z")
Could you paste your new `config.log`, please?
---
### Author:  [@ylnz7](https://community.freefem.org/u/ylnz7)
#### Post date: [January 14, 2020, 10:20pm UTC](https://community.freefem.org/t/errors-on-compilation-in-ubuntu/219/10 "2020-01-14T22:20:03Z")
Sure. Here it is.
[config.log](https://community.freefem.org/uploads/short-url/fHyVaX86iwBOeuBqQWAzSDA7y3w.log) (445.8 KB)
---
### Author:  [@prj](https://community.freefem.org/u/prj)
#### Post date: [January 14, 2020, 10:20pm UTC](https://community.freefem.org/t/errors-on-compilation-in-ubuntu/219/11 "2020-01-14T22:20:52Z")
Where did you install BLAS and LAPACK? It can’t be found by FreeFEM configure.
---
### Author:  [@ylnz7](https://community.freefem.org/u/ylnz7)
#### Post date: [January 14, 2020, 10:42pm UTC](https://community.freefem.org/t/errors-on-compilation-in-ubuntu/219/12 "2020-01-14T22:42:02Z")
I installed it under home/username/
---
### Author:  [@prj](https://community.freefem.org/u/prj)
#### Post date: [January 15, 2020, 8:27pm UTC](https://community.freefem.org/t/errors-on-compilation-in-ubuntu/219/13 "2020-01-15T20:27:51Z")
Then, you need to pass this information to FreeFEM `./configure`. Add `-help` to see the appropriate options.
---
### Author:  [@prj](https://community.freefem.org/u/prj)
#### Post date: [January 16, 2020, 10:22am UTC](https://community.freefem.org/t/errors-on-compilation-in-ubuntu/219/14 "2020-01-16T10:22:12Z")
Another solution would be to go into `FreeFem-sources/3rdparty/blas`, do `make`, and then go back to PETSc compilation.
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### Author:  [@macro2micro](https://community.freefem.org/u/macro2micro)
#### Post date: [April 9, 2020, 2:11am UTC](https://community.freefem.org/t/errors-on-compilation-in-ubuntu/219/15 "2020-04-09T02:11:50Z")
Hello, have you ever solved this problem and what you did? Could you please give some suggestions in detail. Thanks a lot.
I met the same problem, when installing FreeFem. And I have try to solve it for many days…no progress at all…
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### Author:  [@prj](https://community.freefem.org/u/prj)
#### Post date: [April 9, 2020, 4:50am UTC](https://community.freefem.org/t/errors-on-compilation-in-ubuntu/219/16 "2020-04-09T04:50:08Z")
What is you problem?
---
### Author:  [@macro2micro](https://community.freefem.org/u/macro2micro)
#### Post date: [April 9, 2020, 7:28am UTC](https://community.freefem.org/t/errors-on-compilation-in-ubuntu/219/17 "2020-04-09T07:28:02Z")
i have met the same trouble with him. When i complie FreeFEM in CENTOS7 according to README.md step by step.
When I proceeding this step ‘make petsc-slepc’ in /3rdparty/ff-petsc , it occurs the trouble tip:
## TESTING: checkLib from config.packages.BlasLapack(config/BuildSystem/c\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\* UNABLE to CONFIGURE with GIVEN OPTIONS (see configure.log for details):
You set a value for --with-blaslapack-lib=, but [’-lblas’] cannot be used
* * *
make: \*\*\* [Makefile:210：petsc-3.13.0/tag-conf-real] 错误 1
in centos system.
I find this man had the same problem here, and I haven’t understand what he did for solving this problem.
Did he solve it? And what he did in details?
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### Author:  [@macro2micro](https://community.freefem.org/u/macro2micro)
#### Post date: [April 9, 2020, 7:28am UTC](https://community.freefem.org/t/errors-on-compilation-in-ubuntu/219/18 "2020-04-09T07:28:48Z")
---
### Author:  [@prj](https://community.freefem.org/u/prj)
#### Post date: [April 9, 2020, 8:19am UTC](https://community.freefem.org/t/errors-on-compilation-in-ubuntu/219/19 "2020-04-09T08:19:08Z")
Could you please share you `config.log` and `3rdparty/ff-petsc/petsc-3.13.0/configure.log`?