NoMethodError (undefined method downcase' for nil:NilClass) app/models/global_setting.rb:107:in s3_bucket_name’ app/models/site_setting.rb:157:in absolute_base_url' app/models/upload.rb:185:in sec Message NoMethodError (undefined method `downcase' for nil:NilClass) app/models/global_setting.rb:107:…

How have you configured your S3 buckets? You might have a look at Using Object Storage for Uploads (S3 & Clones) and configure S3 with environment variables as described there.

I have configured my s3 through the admin setting page. [image] Do I still have to configure the S3 environment variables in app.yml?

Isn’t this because you left the S3 upload bucket field blank? It looks to me like it is trying to call downcase on a blank value.

NoMethodError: downcase, s3_bucket_name, absolute_base_url

지원 자체 호스팅

codinghorror (Jeff Atwood) 12월 24, 2020, 9:40오후 5

이건 S3 업로드 버킷 필드를 비워 두셨기 때문이 아닌가요? 값이 비어 있는 상태에서 downcase를 호출하려는 것처럼 보입니다.

글		댓글	조회수
Bug: S3 multipart backup upload fails with undefined method 'downcase' for nil Bug	1	133	7월 15, 2026
"undefined method" Error When Running uploads:migrate_to_s3 Rake Task Bug	4	1266	1월 16, 2019
S3 configuration expectations between global and site settings Development	0	905	6월 4, 2020
Backups to Cloudflare R2 fail during multipart upload with aws-sdk-s3 1.182.0 (undefined method 'downcase' for nil) Bug	3	234	4월 4, 2026
Migrating uploads to S3 for 'default'... rake aborted! Self-hosting s3	4	1202	3월 21, 2020

NoMethodError: downcase, s3_bucket_name, absolute_base_url

Related topics