Pydev is throwing error while creating Project in Eclipse

I am getting the following error while opening PyDev project in eclipse

"The selected wizard could not be started.
Plug-in org.python.pydev was unable to load class org.python.pydev.ui.wizards.project.PythonProjectWizard.
An error occurred while automatically activating bundle org.python.pydev (1178)." 

Attached is the screenshot :