当我使用捆绑优化在IIS上发布我的ASP.NET MVC应用程序时，为什么SignalR无法正确加载？
[英]Why SignalR is not loaded properly when my ASP.NET MVC application is published on IIS using bundle optimization?
问题描述
It seems that when running my application using SignalR on my development server with IIS I get the error below in the JS console (while it's completely fine running the application locally in Debug): 
似乎在使用带有IIS的开发服务器上的SignalR运行我的应用程序时，我在JS控制台中收到以下错误（尽管在Debug中本地运行该应用程序完全可以）：
Uncaught Error: SignalR: SignalR is not loaded. Please ensure jquery.signalR-x.js is referenced before ~/signalr/js. at hubs:17 at hubs:106
Line 17 is related to: 第17行与以下内容有关：
if (typeof ($.signalR) !== "function") {
throw new Error("SignalR: SignalR is not loaded. Please ensure jquery.signalR-x.js is referenced before ~/signalr/js.");
}
Line 106 is just the end of the IIFE. 第106行只是IIFE的结尾。
Here is below BundleConfig class: 以下是BundleConfig类：
public class BundleConfig
{
public static void RegisterBundles(BundleCollection bundles)
{
var scriptBundle = new ScriptBundle("~/Scripts/bundle");
// jQuery
scriptBundle.Include("~/Scripts/jquery-3.1.1.min.js");
// Bootstrap
scriptBundle.Include("~/Scripts/bootstrap.min.js");
// Knockout
scriptBundle.Include("~/Scripts/knockout-{version}.js");
// SignalR
scriptBundle.Include("~/Scripts/jquery.signalR-{version}.js");
// Custom site scripts
scriptBundle.Include("~/Scripts/scripts.js");
scriptBundle.Include("~/Scripts/scripts-bootstrap.js");
scriptBundle.Include("~/Scripts/scripts-devextreme.js");
var styleBundle = new StyleBundle("~/Content/bundle");
// Bootstrap
styleBundle.Include("~/Content/bootstrap-telus-theme.min.css");
// Font Awesome
styleBundle.Include("~/Content/font-awesome.min.css");
// Custom site styles
styleBundle.Include("~/Content/Site.css");
styleBundle.Include("~/Content/Site-bootstrap-plus.css");
styleBundle.Include("~/Content/Site-devextreme-plus.css");
bundles.Add(scriptBundle);
bundles.Add(styleBundle);
#if !DEBUG
BundleTable.EnableOptimizations = true;
#endif
}
}
The doctype on the development server looks like: 开发服务器上的文档类型如下：
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="description" content="">
<meta name="author" content="">
<title>Login</title>
<link rel="favicon" href="/Content/favicons/favicon.ico" />
<link rel="favicon" sizes="32x32" href="/Content/favicons/favicon-32.png" />
<link rel="favicon" sizes="128x128" href="/Content/favicons/favicon-128.png" />
<link rel="apple-touch-icon" href="/Content/favicons/apple-touch-icon.png" />
<link rel="apple-touch-icon" sizes="72x72" href="/Content/favicons/apple-touch-icon-72.png" />
<link rel="apple-touch-icon" sizes="114x114" href="/Content/favicons/apple-touch-icon-114.png" />
<link rel="apple-touch-icon" sizes="144x144" href="/Content/favicons/apple-touch-icon-144.png" />
<link href="/Content/bundle?v=KoFrSDNrdsCobjey_0WoDyRHewQDRrB1Ov9eEHg15EI1" rel="stylesheet"/>
<link href="/Content/DevExtremeBundle?v=dvjWkuzRNPhpuO8epzd1bapDA4VbH3NGrM9XfK6lfH41" rel="stylesheet"/>
<script src="/Scripts/bundle?v=bk8qAjn5FOZNS6DjmQ8qRN1l5sZzYFEHYS7tNOnf4vk1"></script>
<script src="/Scripts/DevExtremeBundle?v=EDbcZoJEzBcOEMDXw50S76TV4vRJy8nCjafsccwoAas1"></script>
<script src="/signalr/hubs" type="text/javascript"></script>
</head>
In local debug (so without the bundle optimization): 在本地调试中（因此不进行包优化）：
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="description" content="">
<meta name="author" content="">
<title>Login</title>
<link rel="favicon" href="/Content/favicons/favicon.ico" />
<link rel="favicon" sizes="32x32" href="/Content/favicons/favicon-32.png" />
<link rel="favicon" sizes="128x128" href="/Content/favicons/favicon-128.png" />
<link rel="apple-touch-icon" href="/Content/favicons/apple-touch-icon.png" />
<link rel="apple-touch-icon" sizes="72x72" href="/Content/favicons/apple-touch-icon-72.png" />
<link rel="apple-touch-icon" sizes="114x114" href="/Content/favicons/apple-touch-icon-114.png" />
<link rel="apple-touch-icon" sizes="144x144" href="/Content/favicons/apple-touch-icon-144.png" />
<link href="/Content/bootstrap-telus-theme.min.css" rel="stylesheet"/>
<link href="/Content/font-awesome.min.css" rel="stylesheet"/>
<link href="/Content/Site.css" rel="stylesheet"/>
<link href="/Content/Site-bootstrap-plus.css" rel="stylesheet"/>
<link href="/Content/Site-devextreme-plus.css" rel="stylesheet"/>
<link href="/Content/dx.common.css" rel="stylesheet"/>
<link href="/Content/dx.telus.light.css" rel="stylesheet"/>
<script src="/Scripts/jquery-3.1.1.min.js"></script>
<script src="/Scripts/bootstrap.min.js"></script>
<script src="/Scripts/knockout-3.4.2.debug.js"></script>
<script src="/Scripts/jquery.signalR-2.2.2.js"></script>
<script src="/Scripts/scripts.js"></script>
<script src="/Scripts/scripts-bootstrap.js"></script>
<script src="/Scripts/scripts-devextreme.js"></script>
<script src="/Scripts/cldr.js"></script>
<script src="/Scripts/cldr/event.js"></script>
<script src="/Scripts/cldr/supplemental.js"></script>
<script src="/Scripts/cldr/unresolved.js"></script>
<script src="/Scripts/globalize.js"></script>
<script src="/Scripts/globalize/message.js"></script>
<script src="/Scripts/globalize/number.js"></script>
<script src="/Scripts/globalize/currency.js"></script>
<script src="/Scripts/globalize/date.js"></script>
<script src="/Scripts/jszip.js"></script>
<script src="/Scripts/dx.all.debug.js"></script>
<script src="/Scripts/aspnet/dx.aspnet.data.js"></script>
<script src="/Scripts/aspnet/dx.aspnet.mvc.js"></script>
<script src="/signalr/hubs" type="text/javascript"></script>
</head>
What is published on the development server does not run with a DEBUG constant, how can I make it work without it? 开发服务器上发布的内容没有使用DEBUG常量运行，如果没有它，我如何使它工作？ Imho the BundleTable.EnableOptimizations = true; Imho BundleTable.EnableOptimizations = true; line is not supposed to mess up my signalR bundling and still that's pretty much the only difference I can see between the two. 线不应该弄乱我的signalR捆绑，但这仍然是我可以看到的唯一的区别。 However when running with the development server configuration locally it also works even with the optimization bundle enabled... 但是，当在本地使用开发服务器配置运行时，即使启用了优化捆绑包，它也可以工作...
1 个解决方案
解决方案1
1 已采纳 2017-10-24 17:27:34
The issue happened because bundle optimization is skipping min files. 发生此问题是因为捆绑包优化正在跳过最小文件。 And you bundled JS doesn't have jQuery, which is required for SignalR. 而且您捆绑的JS没有jQuery，这是SignalR必需的。
For more details, please check this answer: Bundler not including .min files 有关更多详细信息，请检查以下答案： 捆绑软件不包括.min文件
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