Hello, This seems to be a frequently asked question: probably you need to make sure that the location you’ve specified for any output files on your computer is somewhere you have permission to read/write files, and that (less likely to be the problem) you can overwrite pre-existing files. For example, see these previous posts: <http://plato.cgl.ucsf.edu/pipermail/chimera-users/2016-November/012876.html> <http://plato.cgl.ucsf.edu/pipermail/chimera-users/2017-May/013395.html> I hope this helps, Elaine ----- Elaine C. Meng, Ph.D. UCSF Chimera(X) team Department of Pharmaceutical Chemistry University of California, San Francisco

On Feb 12, 2018, at 5:30 PM, Dustin Park <dpark61@illinois.edu> wrote:

Hello,

After using docking preparation and run, I set the executable location to vina and clicked ok. However, the result is that there is a chimera error ([errno 13] Permission denied. Can you explain to me how to get past the docking preparation step and why this error is coming up? Not sure how else to do this step.

Thank you.