Question

Plunker 1 因以下错误而失败：

zone.js:323 Error: Error: XHR error (404 Not Found) loading http://run.plnkr.co/XaKTrrlcPIlCBySj/node_modules/rxjs/index.js(…)

Plunker 2 因其他错误而失败：

angular2-polyfills.js:349 Error: Cannot read property 'prototype' of undefined(…)

我被困住了，不知道如何继续......任何人都可以帮忙吗？

Answer 1

您收到HTTP 404错误

The 404 or Not Found error message is a HTTP standard response code, in computer network communications, to indicate that the client was able to communicate with a given server, but the server could not find what was requested.

The web site hosting server will typically generate a "404 Not Found" web page when a user attempts to follow a broken or dead link; hence the 404 error is one of the most recognizable errors encountered on the World Wide Web.

所以基本上服务器无法找到资源“http：//run.plnkr.co/XaKTrrlcPIlCBySj/node_modules/rxjs/index.js”。

由于服务器返回响应代码，客户端无法解决此错误。

此致 Sudhansu

Answer 2

您需要使用此配置代替SystemJS，例如：

def parse_item(self, response):
    sel = Selector(response)
    tables = sel.xpath('//div[contains(@id, "superheroes")]/table/tr[2]/td[1]')
    for name, data in zip(tables.xpath('./h2/text()'), tables.xpath('./table')):
        item = Superheroes()
        item['name'] = name.extract()
        item['address'] = data.xpath('.//strong[1]/text()').extract()
        item['state'] = data.xpath('.//strong[2]/text()').extract()
        item['postal_code'] = data.xpath('.//strong[3]/text()').extract()
        yield item

因为你的plunkr中没有map: { app: "./src", '@angular': 'https://npmcdn.com/@angular', 'rxjs': 'https://npmcdn.com/rxjs@5.0.0-beta.6' },文件夹......

将此plunkr视为示例：https://plnkr.co/edit/Qdm8GFsD5Rh1ioJV6jQM?p=info。

以下是Angular团队提供的RC版本模板：http://plnkr.co/edit/tpl:AvJOMERrnz94ekVua0u5?p=catalogue。

无法在Plunker上正确加载angular2应用程序

2 个答案: