query: Unable to install package libpq-dev
positive_passages.docid: 5407
positive_passages.text: How to fix "W: Duplicate sources.list entry"?
negative_passages.docid: 19749
negative_passages.text: How to debug an unmet dependencies problem?
negative_passages.docid: 32426
negative_passages.text: How to install packages?
negative_passages.docid: 73357
negative_passages.text: Every package "has no installation candidate"
negative_passages.docid: 34016
negative_passages.text: Why is apt-get unable to locate bitcoin and bitcoin-qt package?
negative_passages.docid: 147336
negative_passages.text: How to fix dpkg error [2]?
negative_passages.docid: 120521
negative_passages.text: Installing .pkg with terminal ?
negative_passages.docid: 2280
negative_passages.text: Package system is broken. How to fix it?
negative_passages.docid: 110896
negative_passages.text: Package installation - Outdated repository
negative_passages.docid: 3298
negative_passages.text: How do I resolve unmet dependencies after adding a PPA?
negative_passages.docid: 1520
negative_passages.text: How to install software or upgrade from an old unsupported release?
negative_passages.docid: 8078
negative_passages.text: How do I install an individual package on a Linux system?
negative_passages.docid: 113291
negative_passages.text: How to install qt 4.8 from repository?
negative_passages.docid: 85369
negative_passages.text: Problems installing the devtools package
negative_passages.docid: 52444
negative_passages.text: dpkg: error: parsing file '/var/lib/dpkg/updates/0045' near line 0:
negative_passages.docid: 59914
negative_passages.text: Can't install libglew-dev because libcheese and libclutter don't have the required versions
negative_passages.docid: 20398
negative_passages.text: dpkg broken after 15.04 upgrade fail