Rails活动存储:安装出错

注意-还有一些其他的问题似乎也问同样的问题,但那里的解决方案对我不起作用。所以这有点不同。

我正在尝试学习关于活动存储的教程

https://edgeguides.rubyonrails.org/active_storage_overview.html

我在MaOS上

我愿意 rails new blahapp cd blahapp 一个全新的Rails应用程序。

我得到错误

Don't know how to build task 'active_storage:install'

看到这些问题了吗 rails active_storage:install IS NOT WORKING 和 https://github.com/rails/activestorage/tree/archive#installation

我试过那里的东西,但还是不起作用,我会详细说明……

然后我尝试添加 gem "activestorage" 到gemfile,并安装了bundle

相同误差

然后我试着打开文件 config/application.rb 并添加线条 require "active_storage" 然后错误改变了一点

它说 "Don't know how to build task 'active_storage:install'.......... did you mean? activestorage:install

所以,即使导游说 rails active_storage:install 我试过 rails activestorage:install 它说

"Made storage and tmp/storage directories for development and testing.  
Copied default configuration to config/storage_serivces.ymp
rails aborted.
Errno::ENOENT: No such file or directory @ rb_sysopen - /Users/apple/blahapp/db/migrate/.............active_storage_create_tables.rb