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Error: The method onItemSelected(String) of type ItemListActivity must override a superclass method

Written By MR HARI on Minggu, 01 Juli 2012 | 02.38

It MAY BE happen if you new a project using the new Android SDK Revision 20: Eclipse complain with errors of:
- The method onItemSelected(String) of type ItemListActivity must override a superclass method
- The method onItemSelected(String) of type new ItemListFragment.Callbacks(){} must override a superclass method

Checking the updated System requirements of Android SDK, only JDK 6 is officially supported:

To fix it: correct Compiler compliance level to 1.6.

- Right click your project, select Properties.

- Select Java Compiler tab, change Compiler compliance level to 1.6.

- Alternatively, you can click Window -> Preferences, then select Java -> Compiler to change Compiler compliance level to 1.6 for the whole workspace.