ERROR: While executing gem ... (Gem::RemoteFetcher::FetchError)
bad response Not Found 404 (https://gems.ruby-china.org/specs.4.8.gz)
去https://gems.ruby-china.org看了眼芳悲,顯示:
1.$ gem sources --remove https://gems.ruby-china.org
2.$ gem sources -a https://gems.ruby-china.com
3.$ gem sources -l
https://gems.ruby-china.com
4.$ sudo gem update --system