用国内快速的镜像源即可 pip install PyQt5 -i http://pypi.douban.com/simple/ --trusted-host pypi.douban.com…

安装库时报错:Could not fetch URL https://pypi.python.org/simple/wheel/: 解决办法:  pip --trusted-host pypi.python.org install wheel…

npm install安装node-sass时出现以下问题: Cannot download https://github.com/sass/node-sass/releases/download/v4.5.3/win32-x64-46_binding.node Hint: If github.com is not accessible in your location try setting a proxy via HTTP_PROXY, e.g. export HTTP_PROXY=http…

.msi版MySQL安装包在安装最后执行的时候到第三部或者第四部死掉 主要是因为之前安装的版本没有卸载干净,要卸载干净MySQ安装包有一些几个步骤: 1.通过卸载程序MySQL的相关组件 2.删除Mysql的安装目录 3.在注册表(regedit)查询mysql,全部删除 cmd->regedit 1.HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\Eventlog\Application\MySQL 目录 2.HKEY_LOCAL_MACHIN…

在R语言中使用openxlsx包,会报错 解决办法就是: 下载安装Set-Rtool,安装时注意勾选对话框 然后在R中运行以下代码: Sys.setenv("R_ZIPCMD" = "H:/Rtools/bin/zip.exe") #your Rtools path 具体情况看看你的R软件在哪个盘里面装着.…

sphinx :undefined reference to `libiconv' 报错解决办法   2013-11-30 21:45:39 安装sphinx时不停报错...郁闷在make时报错,错误内容:r local src sphinx sphinx-0 9 8-rc2 src tokenizer_zhcn cpp:280: undefined 安装sphinx时不停报错...郁闷 在make时报错,错误内容: r/local/src/sphinx/sphinx-0.9.8-rc2/src…

Aasible中cryptography兼容性报错解决办法 1 Ansible中使用ansible --version查看版本,报错信息如下: ERROR! Unexpected Exception, (/usr/lib64/python2./site-packages), Requirement.parse('cryptography>=1.1')) the full traceback was: Traceback (most recent call last): File , in <m…

在spring boot jpa 中自定义sql,执行update操作报错解决办法: 在@Query(...)上添加 @Modifying@Transactional注解…

sysctl -P 报错解决办法问题症状修改 linux 内核文件 #vi /etc/sysctl.conf后执行sysctl  -P 报错error: "net.bridge.bridge-nf-call-ip6tables" is an unknown keyerror: "net.bridge.bridge-nf-call-iptables" is an unknown keyerror: "net.bridge.bridge-nf-call-arp…

error: "net.bridge.bridge-nf-call-ip6tables" is an unknown keyerror: "net.bridge.bridge-nf-call-iptables" is an unknown keyerror: "net.bridge.bridge-nf-call-arptables" is an unknown key sysctl -P 报错解决办法问题症状修改 linux 内核文件 #vi /…