make auto

Please help me to solve the following error, I have changed a few things at 'makefile.user' but all in vain.

:~/Desktop/liggghts-public/src$ make auto
Creating list of contact models completed.
make[1]: Entering directory '/home/vimod/Desktop/liggghts-public/src/Obj_auto'
"Warning: both CXX and CXX_USR are set, precedence is given to CXX = g++ (CXX_USR = )"
'Could not compile VTK example. As AUTOINSTALL_VTK is set to "ON". VTK will now be automatically downloaded to ../../lib'
VTK has been downloaded and will be compiled now. This can take several minutes.
Makefile:803: *** 'Compilation of vtk failed. Please install it manually'. Stop.
make[1]: Leaving directory '/home/vimod/Desktop/liggghts-public/src/Obj_auto'
Makefile:106: recipe for target 'auto' failed
make: *** [auto] Error 2