Comment 2 for bug 572612

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Gianfranco Costamagna (costamagnagianfranco) wrote : Re: package boinc-client 6.10.17+dfsg-3ubuntu1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

could you try to do:

sudo apt-get purge boinc

sudo apt-get install boinc

thanks