deal.ii installation problem

[ME20D503 NEWTON]

Dear users,

i am facing some problem while installing deal.ii. installation has been completed upto 100% but in the last i got some error.please find the attachment.

Thank you.

[Alexander Kiselyov]

Are you building deal.II manually? The default install path of manually-built software is /usr/local on Linux. It is usually write-accessible only by the root user. I recommend to use candi, it will install deal.II + dependencies in user-accessible locations, it is much easier than doing it manually. Don't forget to edit candi.cfg to specify the deal.II version and the needed features. 

Regards,

Alexander

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[Wolfgang Bangerth]

> i am facing some problem while installing deal.ii. installation has been
> completed upto 100% but in the last i got some error.please find the attachment.

The error message actually says everything you need to know:
cannot create directory /usr/local/... Maybe you need administrative
privileges.

What is happening is that you called cmake without saying where you wanted
deal.II to be installed (which you would do with the
-DCMAKE_INSTALL_PREFIX=... switch). The default for installation is
/usr/local
which is a directory only the 'root' user can write to, but not the iittp user
you apparently are.

Unless you are a sysadmin, people generally install deal.II into a location in
their home directory by specifying -DCMAKE_INSTALL_PREFIX=... when calling
cmake -- see also the installation instructions at
https://dealii.org/developer/readme.html

Best
W.


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Wolfgang Bangerth email: bang...@colostate.edu
www: http://www.math.colostate.edu/~bangerth/

[ME20D503 NEWTON]

Thank you so much professor. I successfully installed the deal. ii in my system.