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Editorial Team
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Asked: 2026-05-31T07:22:18+00:00

is it possible to use Eclipse 3.7 IDE for developing for the 3.5 platform?

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is it possible to use Eclipse 3.7 IDE for developing for the 3.5 platform? Or must I use Eclipse 3.5 IDE?

When I try to switch from Eclipse 3.5 IDE to 3.7 I get errors on projects, which were ok before:
Archive for required library: ‘C:/…/.metadata/.plugins/org.eclipse.pde.core/.external_libraries/xyz/os/win32/x86’ in project ‘projectname’ cannot be read or is not a valid ZIP file projectname

What do I have to do to exchange the 3.5 IDE with a current one, but still develop for the 3.5 platform?

I hope my explanation did make sense and was understandable 🙂

Additional Info:
– I never used the RCP before, now I must use it
– It’s no option to upgrade the target platform (3.5)
– I searched the net and stackoverflow, but found no answers for using 3.7 and develop for target platform 3.5 (maybe nobody else has these problems or I used the wrong queries)

Cheers
Kai

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1 Answer

  1. Editorial Team

    I just resolved my problem 🙂

    In my case, there was a plugin jar, that contained the java sources:

    jar
    com
    META-INF
    src
    plugin.xml

    It seems like eclipse is putting jars inside of plugin jars in the following directory:

    [WORKSPACE]\.metadata\.plugins\org.eclipse.pde.core\.external_libraries\...

    For my plugin, it tried to put the src folder in this directory – which somehow failed.

    After deleting the src folder inside the jar, the errors were gone.

    RCP == bag of pain 🙂

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