fedora20

我的环境是fedora 20,eclipse for ee 是2014年5月目前的最新版，且为官网下载。出错的状况如下： 解压后能完美运行，重起后则报错：Locking is not possible in the directory "/usr/eclipse/configuration/org.eclipse.osgi". A common reason is that the file system or Runtime Environment does not support file locking for that location. Please choose a different location, or disable file locking passing "-Dosgi.locking=none" as a VM argument. 各种百度方案均不能根治，比如提升工作空间权限，修改/usr/eclipse/configuration/org.eclipse.osgi的权限，都是当时能行，重起后又报错。后来发现我fedora的登陆帐号ksisn不属于sudoers管理组，也未设置过密码。最后将ksisn提升到sudoers组中就不出错了。linux新人勿喷。 来源： oschina 链接： https://my.oschina.net/u/948352

I am trying to build the R package png , the repo says that libpng needs to be available. I run a Linux Fedora 20 distro Looks like I have it... [root@localhost bin]# yum install libpng Loaded plugins: langpacks, refresh-packagekit Package 2:libpng-1.6.3-3.fc20.x86_64 already installed and latest version Nothing to do But when I try to install it: > install.packages("png") Installing package into ‘/home/statquant/R/x86_64-redhat-linux-gnu-library/3.0’ (as ‘lib’ is unspecified) trying URL 'http://cran.rstudio.com/src/contrib/png_0.1-7.tar.gz' Content type 'application/x-gzip' length 24990 bytes

I am a fedora 20 user. While cloning a repository,I got the following error: " Cloning into 'git_missions'... fatal: unable to access ' https://openhatch.org/git-mission-data/git/hithard/ ': Cannot communicate securely with peer: no common encryption algorithm(s). " I am not getting what to do?need help. The simplest solution is just to use http instead of https : $ git clone http://openhatch.org/git-mission-data/git/hithard/ Cloning into 'hithard'... remote: Counting objects: 3, done. remote: Total 3 (delta 0), reused 0 (delta 0) Unpacking objects: 100% (3/3), done. Checking connectivity...