Loaded plugins: rhnplugin, security This system is not registered with RHN. RHN support will be disabled. Setting up Install Process No package subversion available. Nothing to do 红帽中出现"This system is not registered with RHN"这个的原因是因为红帽中没有注册RHN.
yum makecache Loaded plugins: fastestmirror Could not retrieve mirrorlist http://mirrorlist.centos.org/?release=7&arch=x86_64&repo=os&infra=stock error was 14: curl#7 - "Failed connect to 172.17.208.186:8888; Connection refused" One
http://www.netpc.com.cn/593.html 运行yum报错Error: Cannot retrieve metalink for reposit 今天给Centos通过rpm -Uvh装了个epel的扩展后,执行yum就开始报错: Error: Cannot retrieve metalink for repository: epel. Please verify its path and try again 在网上查了查,解决办法都是编辑/etc/yum.repos.d/
http://www.netpc.com.cn/593.html 运行yum报错Error: Cannot retrieve metalink for repository: epel. Please verify its path and try again http://www.netpc.com.cn/593.html 今天给Centos通过rpm -Uvh装了个epel的扩展后,执行yum就开始报错: Error: Cannot retrieve metalink for reposit
Linux QtCreator 编译报错:No rule to make target 'mainwindow.cpp' needed by 'mainwindow.o'.stop [1]解决方案 1.打开工程项目的pro文件 2.搜索找到mainwindow.cpp文件的路径 3.切换到工程代码目录下,核对一下对应路径下是否的的确确存在该mainwindow.cpp文件(备注:肯定不存在,存在你不会找到这里来!) 4.想办法搞一个mainwindow.cpp文件放到此对应目录下(提示:经常
执行mysqld_safe报错: [root@edu data]# /usr/local/mysql5.7/bin/mysqld_safe --user=mysql160427 12:41:28 mysqld_safe Logging to '/renqinglei/mysql/log/mysql_error.log'.160427 12:41:28 mysqld_safe The file /usr/local/mysql/bin/mysqlddoes not exist or is not
mysql执行update报错 update library set status=true where 1=1 Error Code: 1175. You are using safe update mode and you tried to update a table without a WHERE that uses a KEY column To disable safe mode, toggle the option in Preferences -> SQL Queries and
dotnetcore ef 调用多个数据库时用户命令执行操作报错 1.多个DbContext 时报错: 报错: More than one DbContext was found. Specify which one to use. Use the '-Context' parameter for PowerShell commands and the '--context' parameter for dotnet commands. 解决办法: dotnet ef migrations ad
mysql执行update报错 Err] 1055 - 'information_schema.PROFILING.SEQ' isn't in GROUP BY 今天开发的同事发来如下错误信息,最最简单的一个update操作,竟然报了[Err] 1055 - 'information_schema.PROFILING.SEQ' isn't in GROUP BY.具体sql语句为: [SQL]UPDATE draw_record SET open_price = '6945.98', buy_p