Describes the cause and action for error messages.
Error Message(English)：
error validation failed
Error: Validation Failed ・ Issue #335 ・ KnisterPeter/vscode-github ...
https://github.com/KnisterPeter/vscode-github/issues/335
returning `> Error! Validation Failed` ・ Issue #1 ・ bukinoshita/git-topics ...
https://github.com/bukinoshita/git-topics/issues/1
Error: Validation Failed - GitHub
https://github.com/imsun/gitment/issues/118
Error: Validation Failed. - GitHub
https://github.com/gitalk/gitalk/issues/103
Error: Validation Failed ・ Issue #29 ・ probot/dco ・ GitHub
https://github.com/probot/dco/issues/29
Error: Validation Failed on Login with 2FA ・ Issue #280 ... - GitHub
https://github.com/pksunkara/octonode/issues/280
Validation failed ・ Issue #193 ・ colinskow/superlogin ・ GitHub
https://github.com/colinskow/superlogin/issues/193
Error: Validation failed: {Projection} must exist ・ Issue #20 ... - GitHub
https://github.com/fhwang/event_sourced_record/issues/20
Hexo+diaspora+gittalk的Error：validation failed ・ Issue #5 ... - GitHub
https://github.com/vipcolud/vipcolud.github.io/issues/5