i have configured my jenkins on tomcat server in windows envronment,I have loaded jenkins.war file . in SCM section github plugin was not detected git path so I have deleted github plugin from userinterface , after reinstall the plugins it is not pinned and not working for some reason . please help me the solutions. I have searched where to configure to fix the problem , in which file i have to updated if i have installed the plugin manually. I am a new person for jenkins.