Try searching for "Inventor" in your filesystem, if you get more than one
under /usr, you should only keep one and remove the others.
See if it works for you and let me know.

Vincent

2011/4/8 Manuel Rodríguez <mrodriguez@robotnik.es>

> Hi all,
>
> I'm trying to install GraspIt! in Ubuntu 10.10 but I'm getting an error
> with one step. I have followed the installation instructions from the
> manual<http://www.cs.columbia.edu/%7Ecmatei/graspit/html-manual/graspit-manual_2.html#id1>and I get installed "all" correctly, but when I try to do the GraspIt!
> installation:
>
> *qmake graspit.pro *
> *WARNING: /home/robotnik/Graspit/graspit-core.pro:99: Unescaped
> backslashes are deprecated.*
>
> After that, when I try to run make, I obtain this error:
>
> *~/Graspit$ make*
> g++ -c -pipe -g -Wall -W -D_REENTRANT -DGRASPIT_COLLISION
> -DQT_QT3SUPPORT_LIB -DQT3_SUPPORT -DQT_GUI_LIB -DQT_CORE_LIB -DQT_SHARED
> -I/usr/share/qt4/mkspecs/linux-g++ -I. -I/usr/include/qt4/QtCore
> -I/usr/include/qt4/QtGui -I/usr/include/qt4/Qt3Support -I/usr/include/qt4
> -I/usr/share/qt4/include -I/include -Iqhull -Isrc -Isrc/Collision -Iinclude
> -Iinclude/math -Iinclude/Planner -Iinclude/EGPlanner -Iui -Iui/Planner
> -Iui/EGPlanner -Isrc/Collision/Graspit -Iui -Iui/Planner -Iui/EGPlanner
> -Itinyxml -I.moc -Iui -o .obj/arch.o src/arch.cpp
> In file included from src/arch.cpp:38:
> include/ivmgr.h:38: fatal error: Inventor/Qt/viewers/SoQtExaminerViewer.h:
> Don't exists the file or directory
> compilation terminated.
> *make: *** [.obj/arch.o] Error 1*
>
>
> I have followed all instalation steps from the manual (configures, makes,
> make install, add variables, etc), so I'm lost.
>
>
>
> Has anyone knows what is my problem and how solve it?
>
>
>
>
>
> Thanks very much for the help,
> Regards
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>
>