小编Pie*_*eau的帖子

升级到Rails 5后无法使用rspec和rollbar。

1. 创建一个Rails 4应用
2. 升级gemfile以使用Rails 5
3. 尝试添加滚动条gem / support

标准config / environment.rb：

 # Load the Rails application.
require_relative 'application'

# Initialize the Rails application.
Rails.application.initialize!

运行rspec时出错：

An error occurred while loading {path to specific spec file}
Failure/Error: require File.expand_path('../../config/environment', __FILE__)

RuntimeError:
  can't modify frozen Array
# ./config/environment.rb:6:in `<top (required)>'
# ./spec/rails_helper.rb:5:in `<top (required)>'
...
No examples found.