routine "<str>" can not be used, entry point "<str>" not found

  Explanation:  The specified external routine  can  not  be  used
  because the specified entry point symbol was not found.

  User  Action:   Verify  that  the  external  routine  definition
  location  specification  references the desired image, check the
  corresponding routine source for the global  symbol  definition,
  and  verify  that  the  associated  image construction procedure
  makes the global entry symbol available to the image activator.