Dear Chimera Help Desk, I have a problem while running molecular docking on Chimera. After running Tools --> Surface/Binding Analysis --> AutoDock Vina, I do not get the results from the docking analysis. I get the regular *name*.receptor.pdb , *name*.receptor.pdbqt , *name*.ligand.pdb , *name*.ligand.pdbqt and *name*.conf files, but the *name* file (the docking results) does not generate. In the Reply Log I found this, which I assume is involved in the problem: standard error ----- Unable to initialize environment because of error: cannot register event client. Only 99 event clients are allowed in the system Exiting. ----- Traceback (most recent call last): File "C:\Program Files (x86)\Chimera 1.11.2\share\chimera\tasks.py", line 179, in runStatusCB task.statusCBList[0]() File "C:\Program Files (x86)\Chimera 1.11.2\share\WebServices\appWebService.py", line 171, in statusCB self.finishCB(self.backend, fileMap) File "C:\Program Files (x86)\Chimera 1.11.2\share\vina\ws.py", line 179, in _wsFinish raise NonChimeraError("No data file returned from " NonChimeraError: No data file returned from AutoDock Vina web service And I can't find how to solve this and get the results from the docking experiments I'm doing. Can you please help me solve this problem? Thank you in advance for your attention. Arturo Estolano Cobián <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> Libre de virus. www.avast.com <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>