title: The “System Roots” keychain cannot be modified
body: <p>I have created the certificate and drop to Keychain Access for testing the application in ios device.This worked fine ,but i have one problem ,i am export the certificate from keychain Access for phonegap application.Now the keychain Access showing a warning ("The “System Roots” keychain cannot be modified.") while i am dragging Development Push SSL Certificate to Keychain Access and the old Development Provisioning Profiles do not working now .The ios application with old Development Provisioning Profiles give an error "Command /usr/bin/codesign failed with exit code 1"</p>
  
  <p>How can avoid this issue?</p>
  
  <p>if anybody know please help me.</p>