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This question already has an answer here:

I got the following message when I tried to open update.

E: dpkg was interrupted, you must manually run 'sudo dpkg --configure -a' to correct the problem.
E: _cache->open() failed, please report.

Please help me to solve it.

marked as duplicate by Christopher Kyle Horton, Jacob Vlijm, Mitch Feb 26 '15 at 6:41

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  • 4
    did you run 'sudo dpkg --configure -a'? – user1974 Apr 3 '11 at 13:22
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Run the command sudo dpkg --configure -a in terminal, just like the error message says to do.

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