安装sass前需安装ruby 安装好ruby好打开命令行,输入 gem install sass 出现错误: ERROR: Could not find a valid gem 'sass' (>= 0), here is why: Unable to download data from https://rubygems.org/ - SSL_connect returned=1 errno=0 state=SSLv3 read server certificate B: certificat…
场景: 想安装SASS的时候,打开cmd,输入gem install sass的时候却出现了: ERROR: Could not find a valid gem 'sass' (>= 0), here is why: Unable to download data from .... 链接被ruby.org关闭了,最开始以为是版本或者配置错误 后来搜索一下,应该是因为GFW的原因或者说实在是不稳定... 解决办法就是:万能淘宝的镜像站http://ruby.taobao.org/…
安装cocoapods,记录两个问题! 1.镜像已经替换成了 http://ruby.taobao.org/, 还是不能不能安装cocoapods, 报错:Unable to download data from http://ruby.taobao.org/ - bad response Not Found 404 (http://ruby.taobao.org/latest_specs.4.8.gz) 如图: 原来是ruby.taobao.org已经停止基于 HTTP 协议的镜像服务, 启用…
转:http://blog.csdn.net/yhawaii/article/details/7511141 今天使用Xcode自带的svn客户端时,总是连接不上服务器,报如下错误: Error validating server certificate for 'https://svn2.assembla.com:443': – The certificate is not issued by a trusted authority. Use the fingerprint to valida…
最近项目不忙了~~有开始专研的python大业,上来想用pip安装一个第三方的库,就一直报错: Could not fetch URL https://pypi.org/simple/xrld/: There was a problem confirming the ssl certificate: HTTPSConnectionPool(host='pypi.org', port=443): Max retries exceeded with url: /simple/xrld/ (Cause…