[jandrey]

icoFoam: command not found

Dear all,

I am trying to install OpenFOAM from source on Ubuntu 16.04 LTS by following the instructions given here:

https://openfoamwiki.net/index.php/I...u#Ubuntu_14.04

The last command (icoFoam -help) does not work and so I am compressing and attaching the file log.make.gz as suggested to see if someone can please help me.

I am supposed to "edit the file log.make and check if there are any error messages. It's the first error message that matters."

I have spent 3 days trying to install OpenFOAM and nothing works. So I would truly appreciate your help.

[hjasak]

You are missing flex++. Please check your packages

which flex++


/home/jimmy/OpenFOAM/OpenFOAM-3.0.0/platforms/linux64GccDPInt64Opt/lib/libtriSurface.so: undefined reference to `yyFlexLexer::yywrap()'

Hrv

[jandrey]

Thank you so much for your response. Unfortunately, I am not sure what you mean by that... I am completely new to Ubuntu. According to another website all I have to do to address your comment is running this "sudo apt-get install flex"
But that didn't fix anything. Can you please be more specific?
Thank you!

[wyldckat]

Quick answer @jandrey: OK, this is a bit confusing... you mentioned in the thread's title that you wanted to install OpenFOAM 3.0.1, but then you followed the instructions for 3.0.0 ...

Instructions for OpenFOAM 3.0.1 and Ubuntu 16.04 have been up for sometime already and are present here: http://openfoamwiki.net/index.php/In...u#Ubuntu_16.04

If you still want to install OpenFOAM 3.0.0 in Ubuntu 16.04, please let me know, but the fix is simple (starting with the OpenFOAM environment ready):

#Go into OpenFOAM's main source folder
cd $WM_PROJECT_DIR
 
#Change how the flex version is checked
find src applications -name "*.L" -type f | xargs sed -i -e 's=\(YY\_FLEX\_SUBMINOR\_VERSION\)=YY_FLEX_MINOR_VERSION < 6 \&\& \1='

./Allwmake -j 4 > log.make 2>&1

@hjasak: This fix is also missing in foam-extend 3.2 and possibly in foam-extend 4.0. I'll send you the merge requests as soon as I can.

[2bias]

The same fix was necessary for compiling OpenFOAM 2.3.x on Ubuntu 16.04. Thanks a lot!