○○Controller#show is missing a template for this request format and variant. request.formats: ["text/html"] request.variant: [] NOTE! For XHR/Ajax or API requests, this action would normally respond with 204 No Content: an empty white screen. Since you're loading it in a web browser, we assume that you expected to actually render a template, not nothing, so we're showing an error to be extra-clear. If you expect 204 No Content, carry on. That's what you'll get from an XHR or API request. Give it a shot.
うわあああああ～！！！！！！
難しそうなエラーだけど、対応するViewが無い時に起こるエラー
Viewがどうなっているか確認すれば治ることが多い！
いかなる時も落ち着いて！私っ！！