在Ubuntu14.04上,我跟踪了http://mirror.its.dal.ca/cran/bin/linux/ubuntu/README,上面写着
Installation and compilationSee https://launchpad.net/ubuntu/+archivemirrors for the list of Ubuntu mirrors./ubuntu
No binary rubies available for: ubuntu/14.04/x86_64/ruby-2.1.2. Continuing with compilation.Checking requirements for ubuntu. Installing requirements for ubuntu. Updating system..........situation:
The following packages have unmet dependencies: libssl-dev
http://es.archive.ubuntu.com/ubuntu/dists/saucy/Release.gpg No es pot connectar amb es.archive.ubuntu.com/ubuntu/ saucy universe
deb http://es.archive.ubuntu.com/ubuntu/ saucy-updates u
在sudo apt-get update之后,我得到以下错误:
E: Failed to fetch cdrom://Ubuntu 16.04 LTS _Xenial Xerus_ - Releaseupdate cannot be used to add new CD-ROMs E: Failed to fetch http://ppa.launchpad.net/boost-latest/ppa/ubuntu
我正在Ubuntu服务器上运行一个升级/更新程序,并遇到了这个问题。W: Sources disagree on hashes for supposely identical version '0.11.3-1+ubuntu18.04.1+deb.sury.org+1'W: Sources disagree on hashes for supposely identical version '0.11.3-1+ubuntu18.04.1+deb.sury.org+1'不确定源</em
E: Failed to fetch ftp://ftp.iitb.ac.in/os/ubuntu/archives/pool/main/o/openjdk-7/icedtea-7-jre-jamvm_7u55-2.4.7-1ubuntu1_amd64.deb Unable to fetch file, server said 'Failed to open file
我正在尝试为Ubuntu16.04安装libimobiledevice-utils。因此,我需要sudo apt-get update,但是当我运行该命令时,输出中会出现以下错误:
W: Failed to fetch http://ph.archive.ubuntu.com/ubuntu/dists/xenial/InRelease Cannot initiate the connection to ph.archive.ubuntu.com:80 (2001