While the app works in debug mode, when release mode switches on .NET bundles, I get the Unknown Provider error. The problem is there many sources (Bootstrap UI and other third-party controls besides application scripts). I fixed a couple of obvious initializers, but this error seems to refer to minified code, generic names:
http://errors.angularjs.org/1.2.21/$injector/unpr?p0=nProvider%20%3C-%20n
How do you troubleshoot something like that?
The way to figure out the problem was to exclude one script file at a time from minification and to see whether the error goes away. The error was actually similar to the one in the question on unknown provider "aProvider <- a" error.
In my case there were several errors. The main one was due to the modal dialog controller, similar to the discussion about injecting modal controller dependencies. However it would only occur with minified code.
The suggestion to provide the controller in the modal options as a string did not work for me. But declaring controller with its dependencies did the trick:
var ModalInstanceCtrl = ['$scope', '$modalInstance', 'items',
function ($scope, $modalInstance, items) { ... }
Related
im currently trying to get SignalrR 2.0 to work in my ASP.NET MVC 5 application, but something goes horribly wrong. I keep getting this error:
SignalR: No JSON parser found. Please ensure json2.js is referenced before the SignalR.js file if you need to support clients without native JSON parsing support, e.g. IE<8.
Which is weird considering this should be an IE bug, and i'm running my app in Chrome.
Just to make things clear, i'm trying to use SignalR in conjunction with my existing Angular application, which shouldn't be a problem, because i'm just going to make an abstraction on top of SignalR to make it easier to use within my existing app.
Things i've tried:
I've tried switching jQuery version from 2.1.1 to 1.10.2, but that didn't do it.
I've tried referencing the Json2 library. But that didn't work either.
I really need some help here. I can supply various code snippets if necessary :-)
Just to clarify. I'm not targeting IE8, but i am targeting the newest version of Chrome though.
So apparently you can't assign the $.connection.start method to a property in a different scope.
For future reference, never do something like this:
var obj = {
start: $.connection.start
};
Make sure to wrap it in another method that will resolve it like this:
var obj = {
start: function () { return $.connection.start(); }
};
Sometimes we get "Unspecified error" in IE (javascript error), when using MaskedEdit.application build in framework 2.0
if i enable the debuggin javascript setting then i found this error otherwise a particular part of the page doesnot display.
If we debug we can see that it happens on below line
//only for ie , for firefox see keydown
if (document.activeElement)
{
if (e.id == document.activeElement.id)
{
hasInitialFocus = true;
}
}
when i tried to search where this code is written then i found this code in ajaxcontroltool.dll file.
and this dll is of third party and i can't change in this dll so what should i do to solve the problem.
i tried this in IE8,but i didn't get the error in IE8 it means the code run smoothly/errorless in IE8.
i get this error in IE9 as occurence ratio of once in 6 times open a page.
it became my headache if any one know please help me out of this.
It looks like a browser issue or dll issue.
Has anyone else noticed this?
Thanks and regards
shoaib
and this dll is of third party and i can't change in this dll so what should i do to solve the problem
Actually you can, as the AjaxControlToolkit is an open source project. You can download project source code from the CodePlex: http://ajaxcontroltoolkit.codeplex.com/ and customize it for your needs
I am trying out ASP.NET Bundling with ASP.NET MVC 4 application. The situation is that I want to make a CDN style service, which has JS and CSS files to which you can address from other sites with this type address: http://www.mycdn.com/scripts/plugin/js, which bundles and minifies all included .js files.
My bundle config for one file looks like this:
bundles.Add(new ScriptBundle("~/Scripts/plugin/pluginjs").Include("~/Scripts/plugin/jquery.plugin.js"));
However, when I do this, the bundles are not getting updated even after I change the original js files. I keep on getting 304 Not Modified, when I refresh my browser, and the content of the minified file is not updated. How can I make bundles update, because it is useless to have bundles with old content? I tried out every way, but could not figure out a solution.
I just had the exact same problem. I have a folder with 2 CSS files:
~/Content/main.css
~/Content/main.min.css (pre-existing from my previous manual minification process)
My bundling code is this:
bundles.Add(new StyleBundle("~/css/main").Include("~/content/main.css"));
No matter how much I changed my main.css the output was the same url with the same contents:
<link href="/css/main?v=6Xf_QaUMSlzHbXralZP7Msq1EiLTd7g1vId6Vcy8NJM1" rel="stylesheet"/>
The only way to update the bundle was to rebuild my solution - obviously not the best approach.
However as soon as I deleted main.min.css, everything started to work just fine. Playing a little more I discovered that if there are both main.css and main.min.css, then updating main.min.css will actually update the bundle... Weirdness, but at least predictable.
After fighting to figure out what makes the bundle cache refresh I came to a few conclusions that will hopefully help others:
If .min files ARE included as part of the bundle:
release mode + change min js code = cache refresh
release mode + change non min js code = no cache refresh
debug mode + change min js code = no cache refresh
debug mode + change non min js code = no cache refresh
If .min files are NOT included as part of the bundle:
debug mode + change js code = no cache refresh
release mode + change js code = cache refresh
Notes
By debug mode i mean web.config compilation debug = true (and
BundleTable.EnableOptimizations = false or is omitted)
By release mode i mean web.config compilation debug = false (and
BundleTable.EnableOptimizations = true or is omitted
Be sure you are actually making code changes. Changes such as spaces
and comments do not affect the resulting minified js so the server is
correct in that there are no changes (so the bundle cache is not
refreshed).
Please note that if you are using Google Chrome the caching is quite aggressive. To ensure nothing is cached, you can do Ctrl-Shift-I to bring up the developer pane. Go to Network and click Disable Cache. Ensure you keep this open. Now refresh the page. Your cache should be cleared and the file changes should be reflected now.
Okay, here's my story. I disabled generation of min files for less files in Web Essentials. Old min files were not deleted, and bundle thingy saw those instead of updated CSS. Good luck!
EDIT
Sometime later I spent another good 2 hours on the same issue. This time it was my fault I guess - I forgot the leading tilde, i.e. I wrote
Scripts.Render("/js/script")
in lieu of
Scripts.Render("~/js/script")
For whatever reason it sometimes worked, and sometimes it did no such thing.
The bundling operation is case sensitive. Make sure the filename has the proper case.
I had to change a line in my BundleConfig.cs:
bundles.Add(new StyleBundle("~/Content/css").Include(
"~/Content/bootstrap.css",
"~/Content/Site.css")); <-- Uppercased.
I actually decided to not to use System.Web.Optimization for this task, but I found Microsoft Ajax Minifier, which is also included in WebGrease.dll, which comes with MVC4 System.Web.Optimization library. I wrote the following function, which I then called in Application_Start for each minified file:
public static void MinifyFile(string virtualPath)
{
string fullPath = HttpContext.Current.Server.MapPath(virtualPath);
string extension = Path.GetExtension(fullPath).ToLower();
string targetPath = fullPath.Substring(0, fullPath.Length - extension.Length) + ".min" + extension;
if(File.Exists(fullPath) == false)
{
throw new FileNotFoundException("File not found: " + fullPath);
}
string input = File.ReadAllText(fullPath);
string output;
if (extension == ".js")
{
Microsoft.Ajax.Utilities.Minifier jsmin = new Microsoft.Ajax.Utilities.Minifier();
output = jsmin.MinifyJavaScript(input);
}
else if (extension == ".css")
{
Microsoft.Ajax.Utilities.Minifier jsmin = new Microsoft.Ajax.Utilities.Minifier();
output = jsmin.MinifyStyleSheet(input);
}
else
{
throw new NotSupportedException(extension + " is not supported for minification.");
}
File.WriteAllText(targetPath, output);
}
Now, my application is minifying all files on Application_Start.
I'm not sure the feature as it currently stands will really support being a CDN, as it relies implicitly on the url to contain a hashcode to prevent browser caching.
But I can try to help you try to get there, and maybe its possible today... One issue that might potentially be a roadblock is that the BundleHandler will return 304 on any bundle requests that contain the IfLastModified header, since the assumption is that the browser cache is always valid due to the fingerprint in the url.
Can you add some details about how you are rendering references to the bundles? Are you using something like Scripts.Render("~/Scripts/plugin/pluginjs")?
Your bundle script tag should look something like this:
Good: <script src="/fbt/bundles/js?v=wvLq7H7qEZB2giyIRn7aEZAxhHOb2RfTYYh2HMd9EqM1"></script>
If your script tags are referencing the raw bundle with no version string, that would likely explain the caching issues you are seeing:
Not good: <script src="/fbt/bundles/js></script>
I know its been a while since this was updated but I have found I just need to wait a couple seconds to let the bundle catch up with my css changes. I have the bootstrap less files being compiled into a css and min.css and its definitely not instant to see my changes. For me it was about 10 seconds on a fast pc with an ssd. Your miles may vary based on your system specs.
I saw this answer but none of these were the case for me.
There were certain CSS rules that were making the styles bundler fail and i was getting the same hash, even if i made changes to the CSS file. It was all working correctly before for me.
In my case the violating css selector rule was -
#globalSearch.searching { ... }
If i made this just
.searching { ... }
It all starts working again and any changes i make to my css file the bundler hash changes correctly.
Just adding this answer as it might help someone.
For what it's worth, I had the same problem just now with one js file inexplicably refusing to update no matter what (rebuild, forced cache clear etc). After a while, I switched the client debug tools in IE on (F12) to start watching the network traffic, and this act alone forced the JS file to refresh. Go figure, but it worked.
The Issue for me was I had Fiddler running. After I close dit and rebuilt my solution it was loading the changes in the js file for me.
I had a similar problem. In my situation, I had a CSS file referenced in a style bundle and had that bundle referenced in my MVC view. I also had the "EnableOptimizations" flag set to false in the bundle code.
Despite all this, the view refused to update to include the new CSS file.
My solution was to create a minified version of the CSS file and include it in the project and it started working. I have no idea why this would be the case since that minified file is not referenced anywhere (even after the view updated) and shouldn't even be considered since the code is set to not be optimized. This is most likely a bug (or a feature) of the bundling functionality. I hope this helps someone else running into this problem.
Make sure your app is really being deployed in Release mode and that your host is fiddling with settings. I was having this issue, but after investigating, I realized my files were not actually being bundled. I was deploying in Release mode, but for some reason (I suspect host), I think my app was really deployed in debug.
I had to set the following at the end of the BundleConfig.cs file to force bundling, which in turn forced the updated file to finally show in the browser.
BundleTable.EnableOptimizations = true;
I had this issue today and I went through all the answers but my problem wasn't solved by any of the solutions here. Later I found that this was happening because there was an error in my CSS. One of the urls was not closed (the last single quote was missing).
This caused the css file to have a syntax error and it didn't compile for the Bundleconfig. I suppose there would have been a message in the Output log, but I hadn't checked.
If this is happening to you in 2020, try making sure your CSS does not have a syntax error.
Just update your System.Web.Optimization by NuGet
I've successfully created an mvc/razor web application that returns css files that have been parsed by razor. Each time there's a background-image I have a razor snippet that writes the URL prefix to the image file name. The CSS now looks like this:
body { background-image: url(#LookupUrl.Image("background.gif")); }
Css files now work fine and I've moved onto trying to get javascript .js files to function the same way but these aren't playing ball.
The code is identical to the css code and it successfully finds the .js file, but razor seems to parse it differently. Here's an example js file:
function testFunction() { alert('test function hit!'); }
testFunction();
Razor seems to think it's code that it should compile, and gives the error:
Compiler Error Message: JS1135: Variable 'alert' has not been declared
> Source Error:
>
> Line 1: function testFunction() {
> Line 2: alert('test function
> hit!'); Line 3: } Line 4:
> testFunction();
After renaming the same file to .css it works fine.
Is there a way of getting razor to function with .js files in the same way as it does for .css?
Here's how I registered the file handlers for razor:
RazorCodeLanguage.Languages.Add("js", new CSharpRazorCodeLanguage());
RazorCodeLanguage.Languages.Add("css", new CSharpRazorCodeLanguage());
WebPageHttpHandler.RegisterExtension(".js");
WebPageHttpHandler.RegisterExtension(".css");
The build provider is registered in PreApplicationStart via the method Haacked outlines in his blog post.
Do I need to remove a handler that mvc adds for .js files?
UPDATE 2 days on
While I got working what I wanted to get working, I would not recommend this method to others. Using Razor to parse css/javascript is flawed without the use of <text><text/> - it's the simplicity of razor using the # ampersand that messes it up. Consider the CSS3 #font-face. Razor hits the # and thinks it should use it as a function. The same thing can happen with javascript, and happened with Jquery 1.5.1.
Instead, I'll probably go back to aspx webforms for dynamic css/javascript, where there's less chance of the <% %> code blocks appearing naturally.
I couldn't understand why CSS worked while JS didn't, especially after the copy+pasted JS code worked inside the CSS file.
I used the find/replace dialogue within visual studio on the System.Web.WebPages.Razor source to search for the string '.js' within the project. There was nothing helpful there so I then went to the System.Web.WebPages project. It found a match in System.Web.WebPages.Util, which is a static class with a few helper methods.
One of those methods is 'EnsureValidPageType' and within there is a try/catch block. Inside the 'catch' block is a comment:
// If the path uses an extension registered with codedom, such as Foo.js,
// then an unfriendly compilation error might get thrown by the underlying compiler.
// Check if this is the case and throw a simpler error.
It made me believe .js has got some special built-in handler with it.
I googled for a bit, couldn't find anything, then looked in the web.config that's within \Windows\Microsoft.NET\Framework64{version}\Config.
In there is a buildProvider mapping for the extension .js to
System.Web.Compilation.ForceCopyBuildProvider
After removing this buildprovider in the website's web.config, .js files get compiled and work as they should!
I'm still not too sure what the ForceCopyBuildProvider does or is for but I wonder if it's for visual studio. Various extensions have different Copy/Ignore build providers registered.
Once again apologies for answering my own question but I hope the comprehensive(waffley) answer might help others out.
You could try using the special <text> node to indicate to the Razor parser to treat the content literally:
<text>
function testFunction() { alert('test function hit!'); }
testFunction();
</text>
The default Razor parser uses the HtmlMarkupParser to handle the markup components of your template. There isn't currently any alternative parsers that support other markup languages (which you would need to treat the javascript code language as). If you did create a new markup parser, I would imagine it would be quite difficult to separate the code and markup (i.e. the C# and the Javascript).
What you could do, is use the <text></text> wrapping elements to enforce the parser switches to markup mode when that section of the template is reached, e.g.
<text>function testFunction() { alert('test function hit!'); }</text>
It's not pretty, but it should do the trick.
I have a page that has a simple javascript in the header portion of the page:
<script type="text/javascript">
function doLogout() {
var conf = confirm("Really log out?");
if (conf === true) { //changed == to === for boolean comparison
$.post("logout.aspx");
}
}
</script>
It uses jQuery to do an AJAX post to my logout page. The only issue right now is that when I click on the link (logout) to fire this function, nothing happens. I checked FireBug's console, and it told me that the function is not defined. This has happened to me before, but I think I botched a bunch of code to fix it sometimes.
Does anyone know the proper way to fix this issue?
Edit
After doing a lot of googling and trying different things, I found this very concise and informative post. Apparently, as the linked article states, the way the script is referenced in the web site is important as it won't run properly otherwise! Hopefully this information will be useful for more people.
This can also occur if there is a syntax error earlier in your javascript code. Often this will just be interpreted as the function not existing (nor any function AFTER the error). Check the code above this code (if there is any) and this code for syntax errors.
A way to tell if the cache error is it is to open Firebug and view the Script source. If the page was cached, you won't see your code. If it loaded but has syntax errors, the code will show, though it won't "find" it.
Things to test:
1) Can you call this function from something else? Like add a <script> at the bottom of the page to call it?
2) Does the page validate? Sometimes I get screwy javascript errors if there is some busted HTML like a missing </b>
3) I've been starting to wrap my javascript in <![CDATA[ ]]> just incase I've got goofy chars in my javascript.
4) I assume you've tested this in other browsers and have the same behavior, right?
5) If you haven't installed it already, install the Web Developer firefox addon. It has a nifty toolbar menu that will disable the cache for you so everything reloads.
6) As weird as it sounds, I once hit a javascript issue that was because of how my text editor was saving UTF-8 files. I forget the details, but it was adding some byte-order-mark or something that upset the browser.
I've had this occur when the page had been cached and so it didn't load the new script in. So to fix it clear all private data from Firefox. Not sure if that helps but it sure happened to me a bunch.
Other ideas for you to test:
is the function defined in the DOM tab in FireBug?
if you call doLogout() from the FireBug console, what happens?
I assume this is not the only script on that page. Make sure that some later script is not modifying doLogout to something else
I had the same issue and tried all that's been suggested here without success.
The only way I fixed it was by discovering that in the <script src="jquery.js"> tag I was using in the head of the page I forgot to close it with its </script> causing the page to ignore all Javascript functions. So please check that your includes look like:
<script src="jquery.js"></script>
I hope that helps. Ross.
If you are using DevExpress controls these links may help you: How to register and execute a JavaScript downloaded to the client via a callback and How to register and execute a JavaScript downloaded to the client via a callback (standalone JS file) and Executing javascripts from user controls dynamically created through ASPxCallback panels
The issue might occur if you have NoScript. You should check and make sure it's not blocking said script.
I had this issue and discovered the problem was just a wrong case letter inside the name.
Call: filterCheckbox()
vs
function filterCheckBox() {}
problem: lowercase "box" vs uppercase "Box".
So check if the name is exactly the same.