Describes the cause and action for error messages.
Error Message(English)：
intellij github missing
Manage projects hosted on GitHub - Help | IntelliJ IDEA - JetBrains
https://www.jetbrains.com/help/idea/manage-projects-hosted-on-github.html
Missing git in Version Control ? IDEs Support (IntelliJ Platform ...
https://intellij-support.jetbrains.com/hc/en-us/community/posts/360000103524-Missing-git-in-Version-・・・
IntelliJ IDEAのプロジェクトをGitHubのリポジトリに連携する - ジムには乗り ...
http://su-kun1899.hatenablog.com/entry/2016/04/27/230000
GitHubでホストされているプロジェクトを管理する - 公式ヘルプ | IntelliJ IDEA
https://pleiades.io/help/idea/manage-projects-hosted-on-github.html
No GitHub in Intellij IDEA VCS > Checkout > Menu - Stack Overflow
https://stackoverflow.com/questions/49203208/no-github-in-intellij-idea-vcs-checkout-menu
GitHub - JetBrains/intellij-community: IntelliJ IDEA Community Edition
https://github.com/JetBrains/intellij-community
Support for testing missing optional Idea plugins ・ Issue #115 ... - GitHub
https://github.com/JetBrains/gradle-intellij-plugin/issues/115
Adding GitHub Wiki to IntelliJ Project ・ vsch/idea-multimarkdown Wiki ...
https://github.com/vsch/idea-multimarkdown/wiki/Adding-GitHub-Wiki-to-IntelliJ-Project
go-lang-plugin-org/go-lang-idea-plugin - GitHub
https://github.com/go-lang-plugin-org/go-lang-idea-plugin