I also searched google but could not find any valid answers.
What should I do?
Interestingly I get these errors only on Mobility projects and that too on opening an existing Mobility project,
New Mobility and J2SE projects dont give me any errors.
Joined: May 13, 2004
Perhaps the old projects used an older version of jdk. Try to see that in the properties of the project, in the library section if the platform is configured right. Or drop the old platform configuration and use the default one.