On 5/3/12 1:54 PM, Adhikari, Badri (MU-Student) wrote: > I am using IMP available at > http://salilab.org/imp/get.php?pkg=1.0/download/imp-1.0.tar.gz
OK, you downloaded and built IMP 1.0.
> 1.The example code at > http://salilab.org/imp/nightly/doc/html/atom_examples.html#charmm_forcefield...
All your other questions are regarding the nightly build. You can't mix IMP 1.0 with the nightly build examples. If you want to use IMP 1.0, read the 1.0 manual at http://www.integrativemodeling.org/doc.html
If you want to use the nightly build, you need to download the latest source code, not 1.0, or use one of the nightly build installers at http://www.integrativemodeling.org/download.html#nightly
Ben