windows 7(64位)上出现防护错误我正在尝试运行一个简单的rspec示例(通过设置以下环境),然后发出命令防护来监视rspec资源rspec-3.0.0guard-rspec-4.2.9C:/softwares/Ruby193/lib/ruby/gems/1.9.1/gems/listen-2.7.6/lib/listen/adapter/windows.rb:21:in `rescue in usable?':
我将包'qr_code_scanner:^0.5.1‘添加到我的pubspec.yaml中。FAILURE: Build failed with an exception.
Build file 'C:\Flutter\flutter\.pub-cache\hosted\pub.dartlang.org\qr_code_scanner- A problem occurred evaluating p