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Start Eclipse, navigate to the Callisto Discovery Site, put a check mark next to Charting and Reporting. The following error appears: BIRT Reporting for TPTP Feature (4.2.0.v200606131519--1G955G5G7A7E7M) requires plug-in "org.eclipse.birt.core". Error Details shows: Requested operation cannot be performed because it would invalidate the current configuration. See details for more information. BIRT Reporting for TPTP Feature (4.2.0.v200606131519--1G955G5G7A7E7M) requires plug-in "org.eclipse.birt.core". TPTP Profile on Server (4.1.100.v200606180100--2PD88P8PAGAMAY) requires plug-in "org.eclipse.jst.server.tomcat.core". TPTP Charting Service (4.1.100.v200606150100--2PD88P8PAGAMAY) requires feature "org.apache.batik". Click the Select Required button and the error changes to: Eclipse BIRT Report Designer Feature (2.1.0.N20060620-1643) requires plug-in "org.apache.commons.codec (1.3.0)", or compatible. Error Details shows: Requested operation cannot be performed because it would invalidate the current configuration. See details for more information. Eclipse BIRT Report Designer Feature (2.1.0.N20060620-1643) requires plug-in "org.apache.commons.codec (1.3.0)", or compatible. Eclipse BIRT Report Runtime Feature (2.1.0.N20060620-1643) requires plug-in "org.mozilla.rhino (1.6.0)", or compatible. Eclipse BIRT Chart Runtime Feature (2.1.0.N20060620-1643) requires plug-in "org.apache.commons.codec (1.3.0)", or compatible. Eclipse BIRT Chart Framework (2.1.0.N20060620-1643) requires plug-in "org.apache.commons.codec (1.3.0)", or compatible. Eclipse BIRT Example (2.1.0.N20060620-1643) requires plug-in "org.apache.derby.core (10.1.2)", or later version. Workaround: put a checkmark next to Enabling Features (to select all of them) and the error clears itself.
This sounds like a problem EMF had ... if your features depend on specific plugins instead of just other features, UM won't be able to resolve those when hitting 'select required'. See bug 131807, bug 133826, bug 133823, bug 133822, bug 131584, ...
This is a problem with the BIRT update site. Since one of the TPTP features requires BIRT, the "Select Required" button will look for dependencies as well when "Testing and Performance" is selected. *** This bug has been marked as a duplicate of 148682 ***