![解決】heroku-20 You are trying to install ruby-2.6.5 on heroku-20. The Ruby version you are trying to install does not exist on this stack. - Qiita 解決】heroku-20 You are trying to install ruby-2.6.5 on heroku-20. The Ruby version you are trying to install does not exist on this stack. - Qiita](https://qiita-user-contents.imgix.net/https%3A%2F%2Fqiita-image-store.s3.ap-northeast-1.amazonaws.com%2F0%2F319526%2F1817de64-5746-3fd1-3c56-c17ae58321f7.png?ixlib=rb-4.0.0&auto=format&gif-q=60&q=75&s=49227dde0fdc08a5cc689440bba17bf9)
解決】heroku-20 You are trying to install ruby-2.6.5 on heroku-20. The Ruby version you are trying to install does not exist on this stack. - Qiita
Deploy to Heroku" button breaks because of unsupported ruby version · Issue #58 · codeforamerica/CutePets · GitHub
![GitHub - hyperoslo/heroku-deploy: Deploying your applications to Heroku should never involve manually chaining shell commands together GitHub - hyperoslo/heroku-deploy: Deploying your applications to Heroku should never involve manually chaining shell commands together](https://user-images.githubusercontent.com/378235/27263687-f9a27d08-546e-11e7-892a-20d9cb76335f.png)