我刚刚将我的操作系统从Ubuntu 14.04 LTS更新到16.04,我在那里运行我的Ruby Sinatra项目.事情是更新后我试图运行服务器,然后在浏览器中的localhost我得到此错误启动错误
Something went wrong while loading app.rb
Gem::ConflictError: Unable to activate sinatra-1.4.7, because rack-2.0.1 conflicts with rack (~> 1.5)
/usr/lib/ruby/2.3.0/rubygems/specification.rb:2286:in `raise_if_conflicts'
/usr/lib/ruby/2.3.0/rubygems/specification.rb:1407:in `activate'
/usr/lib/ruby/2.3.0/rubygems.rb:196:in `rescue in try_activate'
/usr/lib/ruby/2.3.0/rubygems.rb:193:in `try_activate'
/usr/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:125:in `rescue in require'
/usr/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:40:in `require'
/home/leandro/Downloads/git-master/ruby sinatra/app.rb:1:in `<top (required)>'
/usr/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require'
/usr/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require'
/var/lib/gems/2.3.0/gems/shotgun-0.9.1/lib/shotgun/loader.rb:115:in `inner_app'
/var/lib/gems/2.3.0/gems/shotgun-0.9.1/lib/shotgun/loader.rb:103:in `assemble_app'
/var/lib/gems/2.3.0/gems/shotgun-0.9.1/lib/shotgun/loader.rb:86:in `proceed_as_child'
/var/lib/gems/2.3.0/gems/shotgun-0.9.1/lib/shotgun/loader.rb:31:in `call!'
/var/lib/gems/2.3.0/gems/shotgun-0.9.1/lib/shotgun/loader.rb:18:in `call'
/var/lib/gems/2.3.0/gems/shotgun-0.9.1/lib/shotgun/favicon.rb:12:in `call'
/var/lib/gems/2.3.0/gems/shotgun-0.9.1/lib/shotgun/static.rb:14:in `call'
/var/lib/gems/2.3.0/gems/rack-2.0.1/lib/rack/urlmap.rb:68:in `block in call'
/var/lib/gems/2.3.0/gems/rack-2.0.1/lib/rack/urlmap.rb:53:in `each'
/var/lib/gems/2.3.0/gems/rack-2.0.1/lib/rack/urlmap.rb:53:in `call'
/var/lib/gems/2.3.0/gems/rack-2.0.1/lib/rack/builder.rb:153:in `call'
/var/lib/gems/2.3.0/gems/rack-2.0.1/lib/rack/handler/webrick.rb:86:in `service'
/usr/lib/ruby/2.3.0/webrick/httpserver.rb:140:in `service'
/usr/lib/ruby/2.3.0/webrick/httpserver.rb:96:in `run'
/usr/lib/ruby/2.3.0/webrick/server.rb:296:in `block in start_thread' …我在渲染 Twig 视图和 JSON 响应时遇到问题，我需要调用 twig 视图并将一个新的 Json 响应作为参数传递给它。输出错误如下“Notice: Object of class Symfony\Component\HttpFoundation\Response could not be convert to int” 这里是代码
$resultado = array('mes1_local' => $mes1_local, 'mes2_local' => $mes2_local, 'mes3_local' => $mes3_local, 'mes1_online' => $mes1_online, 'mes2_online' => $mes2_online, 'mes3_online' => $mes3_online, 'contador_pedido_local' => $contador_pedido_local, 'contador_pedido_online' => $contador_pedido_online, 'contador_total' => $contador_total, 'contador_usuarios' => $contador_usuarios);
return new JsonResponse($resultado, $this->render('others/adminlte.html.twig'));