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With 3.0M5 1. Start Eclipse 2. Help > Software Updates > Find and Install... > Search for new features to install 3. Add Update Site: Name: CDT2.0 URL: http://update.eclipse.org/tools/cdt/updates/builds/2.0 4. Expand the new update site, but do not download any builds. 5. Determine that the build you want is not there. 6. Cancel out of the Update Mgr and close Eclipse. 7. As announced on the CDT downloads page, download: http://download.eclipse.org/tools/cdt/downloads/2.0/M5RC1/cdt-2.0M5RC1-win32.zip 8. Extract the zip file into Eclipse's install directory. 9. Restart Eclipse. 10. Window > Open Perspective > Other... Note that C/C++ Perspective is not there. EXPECTED: C/C++ Perspective should be listed Similarly, org.eclipse.cdt is not listed in Help > About > Feature Details and > Plugin Details. Okay, maybe I should have removed that Update Manager stuff. Repeat the above, inserting the following steps: 5.1 Help > Software Updates > Find and Install... > Search for new features to install 5.2 Select CDT2.0 and Remove Unfortunately, that doesn't help either. Blowing away my ECLIPSE_HOME/workspace directory didn't fix the problem. Blowing away my ECLIPSE_HOME/.config directory finally provided a work-around. I should be able to back out of Update Manager then use old-school Distribution Zip files. For example, after I had removed evidence of CDT2.0 from the Update Manager, I found "cdt" mentioned in ECLIPSE_HOME/.config/platform.cfg.metadata: site.0.url=platform:/base/ site.0.stamp=1071062324669 site.0.stamp.features=1070747247098 site.0.stamp.plugins=-1511552349 site.0.updateable=true site.0.policy=USER-EXCLUDE site.0.list.0=plugins/org.eclipse.cdt.managedbuilder.core_2.0.0/plugin.xml,plugi ns/org.eclipse.cdt.launch_2.0.0/plugin.xml,plugins/org.eclipse.cdt_2.0.0/plugin. xml,plugins/org.eclipse.cdt.debug.mi.ui_2.0.0/plugin.xml,plugins/org.eclipse.cdt .core_2.0.0/plugin.xml,plugins/org.eclipse.cdt.ui_2.0.0/plugin.xml,plugins/org.e clipse.cdt.win32_2.0.0/plugin.xml,plugins/org.eclipse.cdt.debug.ui_2.0.0/plugin. xml,plugins/org.eclipse.cdt.debug.core_2.0.0/plugin.xml,plugins/org.eclipse.cdt. make.core_2.0.0/plugin.xml site.0.list.1=plugins/org.eclipse.cdt.doc.user_2.0.0/plugin.xml,plugins/org.ecli pse.cdt.make.ui_2.0.0/plugin.xml,plugins/org.eclipse.cdt.managedbuilder.ui_2.0.0 /plugin.xml,plugins/org.eclipse.cdt.core.win32_2.0.0/fragment.xml,plugins/org.ec lipse.cdt.source_2.0.0/plugin.xml,plugins/org.eclipse.cdt.debug.mi.core_2.0.0/pl ugin.xml ... although removing these lines alone was insufficient to regain my unzipped perspective.
What Eclipse build are you using ? If it is M5, then you may see the problem described in bug 47458. The workaround is to enable the CDT feature as described in the bug.
Yes, I am using Eclipse 3.0 M5. I tried the suggested workaround, and it didn't work completely: The org.eclipse.cdt.win32 feature cannot be enabled because it depends on the feature org.eclipse.cdt cannot be enabled. This appears to be a problem with one of our feature.xml files.
So, do we close the bug? Do you expect any sort of fix from the update component?
I'm in favour of a proper fix to bug 47458. I'd be prepared to consider this bug too obscure.
Closing as per your comment #4. Bug 47458 has been fixed.
