query: What does the apt update error mean?
positive_passages.docid: 148085
positive_passages.text: how I can fix "AppStream cache update completed, but some metadata was ignored due to errors."?"
negative_passages.docid: 123413
negative_passages.text: Will apt-get dist-upgrade upgrade my system to a newer version?
negative_passages.docid: 84803
negative_passages.text: sudo apt get update gives error - The package cache file is corrupted
negative_passages.docid: 95593
negative_passages.text: sudo apt-get update returns an error
negative_passages.docid: 56150
negative_passages.text: Can't upgrade/update ubuntu 18.04 as apt/dpkg error is showing up
negative_passages.docid: 26496
negative_passages.text: "yum update" error. How to handle this?
negative_passages.docid: 13720
negative_passages.text: apt-get update fails to fetch files, “Temporary failure resolving …” error
negative_passages.docid: 131270
negative_passages.text: What means "unable to make backup link of /binary before installing new version: No such file or directory"?
negative_passages.docid: 28650
negative_passages.text: `apt-get update` cannot find Ubuntu servers
negative_passages.docid: 66744
negative_passages.text: Apt "Connection failed"
negative_passages.docid: 94171
negative_passages.text: Why Does Software Updater Say No updates Available, but apt-get upgrade Shows updates available?
negative_passages.docid: 131338
negative_passages.text: How do I deal with unknown installation error code -505?
negative_passages.docid: 30068
negative_passages.text: Update: Failed to lock /var/cache/apt/archives/lock
negative_passages.docid: 135383
negative_passages.text: Unable to update my system Ubuntu13.04: Getting message - requires installation of untrusted packages
negative_passages.docid: 12368
negative_passages.text: A "failed to fetch" error occurs when apt-get update is run. How do I fix this?
negative_passages.docid: 24603
negative_passages.text: apt-get upgrade gives "403 forbidden" error
negative_passages.docid: 154622
negative_passages.text: How do I resolve this installation error?