Error: Cannot read property 'name' of undefined
    at User.findOne (app/models/user.js:10:22)
    at routeHandler (app/routes/users.js:20:15)
    at Layer.handle [as handle_request] (node_modules/express/lib/router/layer.js:95:5)
    at next (node_modules/express/lib/router/route.js:137:13)
    at Route.dispatch (node_modules/express/lib/router/route.js:112:3)
    at Layer.handle [as handle_request] (node_modules/express/lib/router/layer.js:95:5)
    at node_modules/express/lib/router/index.js:281:22
    at Function.process_params (node_modules/express/lib/router/index.js:335:12)
    at next (node_modules/express/lib/router/index.js:275:10)
    at Function.handle (node_modules/express/lib/router/index.js:174:3)