Question

我必须从本地仓库运行一个应用程序（称为exoplanet-explorer）。我安装了Node.js和Git，我按照以下步骤操作：

在Git Bash的命令行中：

  git clone https://github.com/udacity/exoplanet.explorer.git
  cd exoplanet-explorer
  npm install -g gulp bower
  npm install && bower install
  gulp serve

当我运行gulp serve时，应用页面会打开，但它是空白的。在控制台中显示错误列表：

Failed to load resource: the server responded with a status of 404 (Not Found) webcomponents-lite.js:1 

(index):1 Refused to execute script from 'http://localhost:5000/bower_components/webcomponentsjs/webcomponents-lite.js' because its MIME type ('text/html') is not executable, and strict MIME type checking is enabled.

:5000/bower_components/iron-flex-layout/classes/iron-flex-layout.html:1 Failed to load resource: the server responded with a status of 404 (Not Found)   

:5000/bower_components/iron-pages/iron-pages.html:1 Failed to load resource: the server responded with a status of 404 (Not Found)

:5000/bower_components/iron-selector/iron-selector.html:1 Failed to load resource: the server responded with a status of 404 (Not Found)

:5000/bower_components/paper-material/paper-material.html:1 Failed to load resource: the server responded with a status of 404 (Not Found)

:5000/bower_components/paper-menu/paper-menu.html:1 Failed to load resource: the server responded with a status of 404 (Not Found)

:5000/bower_components/paper-scroll-header-panel/paper-scroll-header-panel.html:1 Failed to load resource: the server responded with a status of 404 (Not Found)

:5000/bower_components/paper-styles/paper-styles-classes.html:1 Failed to load resource: the server responded with a status of 404 (Not Found)

:5000/bower_components/paper-toolbar/paper-toolbar.html:1 Failed to load resource: the server responded with a status of 404 (Not Found)

[Deprecation] Styling master document from stylesheets defined in HTML Imports is deprecated, and is planned to be removed in M67, around May 2018. Please refer to  for possible migration paths.

page.js:1 Failed to load resource: the server responded with a status of 404 (Not Found)

(index):1 Refused to execute script from 

'http://localhost:5000/bower_components/page/page.js' because its MIME type ('text/html') is not executable, and strict MIME type checking is enabled.

:5000/bower_components/polymer/polymer.html:1 Failed to load resource: the server responded with a status of 404 (Not Found)

planet-thumb.html:78 Uncaught ReferenceError: Polymer is not defined
at planet-thumb.html:78
at planet-thumb.html:100

scale-visualizer.html:68 Uncaught ReferenceError: Polymer is not defined
at scale-visualizer.html:68
at scale-visualizer.html:189

我该怎么办？

Answer 1

我正在使用同一个项目，但使用Windows 10 Home，git版本2.15.1.windows.2和节点v8.11.3，npm v6.1.0，bower v1.8.4，gulp v3，却遇到了完全相同的问题.9.1。我查看了应该位于bower_components文件夹的位置，那里绝对没有任何内容。我还以管理员身份打开bash进行安装。

如果遇到这些错误，则出于任何原因，bower无法正确安装Polymer-starter-kit，或者您忘记/无法自行安装。我实际上看着安装失败，因为一遍又一遍地安装，键入“ bower list ”，它会告诉我所需的入门工具包中的聚合物文件，还没有安装-但我只看到文件已安装。

bower list shows the files still NOT being saved to the project

因此，在执行此操作之后，我必须执行“ bower install -f polymer-starter-kit ”，然后安装gulp并键入gulp才能使一切正常运行。希望这对其他人有帮助-昨天我花了16个小时，今天花了5个小时来解决这个问题。注意：您可能要先进行“ 清除缓存缓存”。

我运行应用程序时，我的本地服务器无法找到bower文件

1 个答案: