"dpkg was interrupted" error on synaptic package inst.

[gilk]

I get the error:
_________________
E: dpkg was interrupted, you must manually run 'sudo dpkg --configure -a' to correct the problem.
E: _cache->open() failed, please report.
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when ever I try to run Synaptic package manager

what should be done?

Thanks in advance

[tarps87]

Applications -> accessories -> terminal


sudo dpkg --configure -a