ActiveRecord :: NoDatabaseError错误：数据库“ db / development.postgresql”不存在

本文介绍了ActiveRecord :: NoDatabaseError错误：数据库“ db / development.postgresql”不存在的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述 我正在构建一个小型应用程序，它正在本地运行。然后，当我将其部署到Heroku上时，该错误在我的终端中弹出：I'm building a small app and it was working locally. Then when I went to deploy it on Heroku, this error popped up in my terminal:remote: An error occurred while installing sqlite3 (1.3.11), and Bundler cannotremote: continue.remote: Make sure that `gem install sqlite3 -v '1.3.11'` succeeds before bundling.remote: !remote: ! Failed to install gems via Bundler.remote: ! remote: ! Detected sqlite3 gem which is not supported on Heroku.remote: ! https://devcenter.heroku.com/articles/sqlite3remote: !remote: remote: ! Push rejected, failed to compile Ruby appremote: remote: Verifying deploy...remote: remote: ! Push rejected to pockettheskimm.remote: To https://git.heroku.com/pockettheskimm.git ! [remote rejected] master -> master (pre-receive hook declined)我随后阅读Heroku上的文档，该文档告诉我必须在应用程序中使用Postgres而不是sqlite3。所以我更新了我的应用程序，将sqlite3换成了Postgres：I subsequently read the documentation on Heroku, which told me that I have to use Postgres in my app instead of sqlite3. So I updated my app, swapping out sqlite3 for Postgres:default: &default adapter: postgresql pool: 5 timeout: 5000development: <<: *default database: db/development.postgresql# Warning: The database defined as "test" will be erased and# re-generated from your development database when you run "rake".# Do not set this db to the same as development or production.test: <<: *default database: db/test.postgresqlproduction: <<: *default database: db/production.postgresql但是现在当我在本地运行应用程序时，我的浏览器中出现以下错误：but now when I run the app locally, I get this error in my browser:ActiveRecord::NoDatabaseErrorFATAL: database "db/development.postgresql" does not existExtracted source (around line #661):659660661662663664 rescue ::PG::Error => error if error.message.include?("does not exist") raise ActiveRecord::NoDatabaseError.new(error.message, error) else raise end我该怎么解决？推荐答案这是对我有用的答案：您跑了 rake db ：更改完database.yml配置文件后，在开发中创建db：migrate ？ 贷方 https://stackoverflow.com/users/163640/eugen 这篇关于ActiveRecord :: NoDatabaseError错误：数据库“ db / development.postgresql”不存在的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！