Question

因此，我正在遵循本指南MEAN STACK GUIDE

我在2号上遇到错误

由于我是研究均值堆栈的新手，所以我自己无法修复

这里有什么帮助吗？

这是完整的错误

Error: No default engine was specified and no extension was provided.
    at new View (/Users/angelocolmenares/Desktop/Carwash/mean-secure/node_modules/express/lib/view.js:61:11)
    at Function.render (/Users/angelocolmenares/Desktop/Carwash/mean-secure/node_modules/express/lib/application.js:570:12)
    at ServerResponse.render (/Users/angelocolmenares/Desktop/Carwash/mean-secure/node_modules/express/lib/response.js:1008:7)
    at /Users/angelocolmenares/Desktop/Carwash/mean-secure/app.js:32:7
    at Layer.handle_error (/Users/angelocolmenares/Desktop/Carwash/mean-secure/node_modules/express/lib/router/layer.js:71:5)
    at trim_prefix (/Users/angelocolmenares/Desktop/Carwash/mean-secure/node_modules/express/lib/router/index.js:315:13)
    at /Users/angelocolmenares/Desktop/Carwash/mean-secure/node_modules/express/lib/router/index.js:284:7
    at Function.process_params (/Users/angelocolmenares/Desktop/Carwash/mean-secure/node_modules/express/lib/router/index.js:335:12)
    at next (/Users/angelocolmenares/Desktop/Carwash/mean-secure/node_modules/express/lib/router/index.js:275:10)
    at /Users/angelocolmenares/Desktop/Carwash/mean-secure/app.js:21:3
GET /favicon.ico 404 1.584 ms - 1428
Error: No default engine was specified and no extension was provided.
    at new View (/Users/angelocolmenares/Desktop/Carwash/mean-secure/node_modules/express/lib/view.js:61:11)
    at Function.render (/Users/angelocolmenares/Desktop/Carwash/mean-secure/node_modules/express/lib/application.js:570:12)
    at ServerResponse.render (/Users/angelocolmenares/Desktop/Carwash/mean-secure/node_modules/express/lib/response.js:1008:7)
    at /Users/angelocolmenares/Desktop/Carwash/mean-secure/app.js:32:7
    at Layer.handle_error (/Users/angelocolmenares/Desktop/Carwash/mean-secure/node_modules/express/lib/router/layer.js:71:5)
    at trim_prefix (/Users/angelocolmenares/Desktop/Carwash/mean-secure/node_modules/express/lib/router/index.js:315:13)
    at /Users/angelocolmenares/Desktop/Carwash/mean-secure/node_modules/express/lib/router/index.js:284:7
    at Function.process_params (/Users/angelocolmenares/Desktop/Carwash/mean-secure/node_modules/express/lib/router/index.js:335:12)
    at next (/Users/angelocolmenares/Desktop/Carwash/mean-secure/node_modules/express/lib/router/index.js:275:10)
    at /Users/angelocolmenares/Desktop/Carwash/mean-secure/app.js:21:3
GET / 404 0.999 ms - 1428
Error: No default engine was specified and no extension was provided.
    at new View (/Users/angelocolmenares/Desktop/Carwash/mean-secure/node_modules/express/lib/view.js:61:11)
    at Function.render (/Users/angelocolmenares/Desktop/Carwash/mean-secure/node_modules/express/lib/application.js:570:12)
    at ServerResponse.render (/Users/angelocolmenares/Desktop/Carwash/mean-secure/node_modules/express/lib/response.js:1008:7)
    at /Users/angelocolmenares/Desktop/Carwash/mean-secure/app.js:32:7
    at Layer.handle_error (/Users/angelocolmenares/Desktop/Carwash/mean-secure/node_modules/express/lib/router/layer.js:71:5)
    at trim_prefix (/Users/angelocolmenares/Desktop/Carwash/mean-secure/node_modules/express/lib/router/index.js:315:13)
    at /Users/angelocolmenares/Desktop/Carwash/mean-secure/node_modules/express/lib/router/index.js:284:7
    at Function.process_params (/Users/angelocolmenares/Desktop/Carwash/mean-secure/node_modules/express/lib/router/index.js:335:12)
    at next (/Users/angelocolmenares/Desktop/Carwash/mean-secure/node_modules/express/lib/router/index.js:275:10)
    at /Users/angelocolmenares/Desktop/Carwash/mean-secure/app.js:21:3

Answer 1

您尚未在routes/api.js中定义任何路由。因此，目前您有localhost:3000/api，这是唯一可访问的路由。

另外，由于No default engine was specified and no extension was provided.中的第31行，您遇到app.js错误，因为您想在点击localhost:3000/api/profile时呈现错误页面。您没有与此路线匹配的路线。您可以将这些行更改为：

 // error handler
app.use(function(err, req, res, next) {
 // set locals, only providing error in development
 res.locals.message = err.message;
 res.locals.error = req.app.get('env') === 'development' ? err : {};


 // render the error page 
 res.status(err.status || 500)
 res.send({ 'error': 'no route found!' });
});

有关快速阅读中的render的更多详细信息，请参见documentation

错误：未指定默认引擎，也未提供扩展名。在新的View MEAN堆栈上

1 个答案: