以前安装了sqlserver2008,没有卸载掉,后面又安装了sqlserver2014,所以系统环境变量中既有2008的环境变量的配置,又有2014的环境变量的配置,所以在终端输入sqlcmd时报错Sqlcmd:Error:Connection failure.SQL Native Client is not installed correctly,在系统环境变量中将2008的所有有关环境变量删除掉,再重新打开一个终端输入sqlcmd即可.…

安装xlrd包的时候,总是报错:ERROR: Could not install packages due to an EnvironmentError: HTTPConnectionPool (host='127.0.0.1', port=8888): Max retries exceeded with url: http://pypi.douban .com/simple/ (Caused by ProxyError('Cannot connect to proxy.', NewConnec…

1.通过https://mirrors.tuna.tsinghua.edu.cn镜像源安装了MySQL5.7.22 rpm -ivh --force --nodeps https://mirrors.tuna.tsinghua.edu.cn/mysql/yum/mysql57-community-el7/mysql-community-client-5.7.22-1.el7.x86_64.rpm rpm -ivh --force --nodeps https://mirrors.tuna.tsi…

[root@localhost mysql]# ./scripts/mysql_install_db  --user=mysql FATAL ERROR: please install the following Perl modules before executing ./scripts/mysql_install_db:Data::Dumper 解决办法(安装perl跟perl-devel即可): 执行  yum -y install perl perl-devel 后在初始化数据库即可.…

进入:C:\ProgramData\Oracle\Java\javapath; 删除:java.exe.javaw.exe.javaws.exe 删除:path的C:\ProgramData\Oracle\Java\javapath; 然后可能还会不行 进入:C:\Windows\System32 删除:java.exe.javaw.exe.javaws.exe 注意:\ProgramData可能是隐藏文件夹.…

安装hue时,make apps 编译报错 :"Error: must have python development packages for 2.6 or 2.7. Could not find Python.h. Please install python2.6-devel or python2.7-devel". Stop. 原因:排查最终原因是,python等某些依赖未安装/未安装好.   依赖未安装的原因,是配置了本地yum源. 解决方法: 可能是本地yum源配置的原因,…

安装ROS时sudo rosdep init指令报错: ERROR: cannot download default sources list from: https://raw.githubusercontent.com/ros/rosdistro/master/rosdep/sources.list.d/20-default.list Website may be down. 解决(以下方法依次执行,一直到搞定: (1)之前曾经安装过 ROS 系统的某个版本,按照提示删除已经存在的初始化文件…

出现上面的错误如果不是路径的问题,就应该找环境的问题,我这里的问题是tomcat7+jdk6,应该是jdk7或以后的版本(因为是web socket) 对应的版本http://tomcat.apache.org/whichversion.html 换上jdk7就好了 2.输入地址报错 type Exception report message Servlet.init() for servlet springmvc threw exception description The server e…

安装VS 2015完成后,VS2012 打开报错 打开VS2012Web项目,弹出错误提示: asp.net 4.0 has not been registered on the web server. you need to manually configure…… 解决办法: 微软官方下载补丁包,安装: https://support.microsoft.com/en-us/kb/3002339 再次从打开VS2012 打开Web项目OK了.…

1.错误信息:登录系统后,屏幕弹出几个错误对话框,无菜单.无按钮 GConf error: Failed to contact configuration server; some possible causes are that you need to enable TCP/IP networking for ORBit, or you have stale NFS locks due to a system crash. See http://www.gnome.org/projects/g…