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Home/ Questions/Q 8906431
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Editorial Team
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Editorial Team
Asked: June 15, 20262026-06-15T02:39:16+00:00 2026-06-15T02:39:16+00:00

I just updated my ADT plugin for Ecipse to v21 but after a restart

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I just updated my ADT plugin for Ecipse to v21 but after a restart it is not working.

Somehow the plugin’s are version 21.0.0.v201210310015-519525, but the SDK verification is telling me that I am on v20.2.v201207191942-407447 and forcing me to update.

I’ve tried removing the plugin but that’s not possible trough the help > about > Installation details. Reverting back to older installations let me reinstall the update but with the same result.

Im using Eclipse Juno 20120614-1722

can anyone point me in the direction to fix this?


UPDATE:

As it turned out, Windows 7 UAC was at play here. I thought i was running eclipse as admin, but i wasn’t. What the strange part is, is that Eclipse tried to install the updates but fails without ever mentioning that it does not have the right to changes files without administrative rights. the next time you boot up, the installation thinks its updated but the files are not.

Solution:

  • Run in Administrator mode (by setting it as standard in your shortcut
    or turn UAC off)
  • Roll back to a previous installation (Help > About
    Eclipse > Installation Details > Installation History > (select
    previous installation) Revert )
  • Reboot Eclipse (be sure to have Administrator rights)
  • Update without a problem 🙂
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  1. Editorial Team
    Editorial Team
    2026-06-15T02:39:17+00:00Added an answer on June 15, 2026 at 2:39 am

    As it turned out, Windows 7 UAC was at play here. I thought i was running eclipse as admin, but i wasn’t. What the strange part is, is that Eclipse tried to install the updates but fails without ever mentioning that it does not have the right to changes files without administrative rights. the next time you boot up, the installation thinks its updated but the files are not.

    Solution:

    • Run in Administrator mode (by setting it as standard in your shortcut or turn UAC off)
    • Roll back to a previous installation (Help > About Eclipse > Installation Details > Installation History > (select previous installation) Revert )
    • Reboot Eclipse (be sure to have Administrator rights)
    • Update without a problem 🙂
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