Solved

Unknown server tag 'ajaxToolkit:toolkitscripmanager'

Posted on 2016-09-30
6
52 Views
Last Modified: 2016-10-04
Well, this is embarassing.  I've inherited a VS2012 asp.net (vb) web app.  I wanted to use the ModalPopupExtender control.  There was nothing in the toolbox, so I right clicked on the Solution -> Manage NuGet Packages -> Online -> Installed Ajax Control Toolkit.

I then added a tab to the toolbox, called it Ajax Control Toolkit.  To this, I right-clicked chose Add Items, I browsed to the bin folder, and selected the AjaxControlToolkit.dll.

I then dropped a ModalPopupExtender in the designer.   I added some code and saved it.  I wanted to test it and now the website won't build.  There are 2 similar errors from 2 other pages regarding the ajaxToolkit, specifically, the errors state:  Unknown server tag 'ajaxToolkit:toolkitscriptmanager' .  Apparently the ajaxtoolkit was used on a couple of other pages at some time, not by me.  

I compared the 2 error causing files between my local folder and the dev folder and they are both identical.  So, I'm not missing any reference.  I compared web.config files too, and they are identical.

I wouldn't have done the installation if I had seen the AjaxToolkit in the toolbox in the first place.  My question is "What can I do to get it to build again"?

Please provide detailed help!  Thank you!!!
0
Comment
Question by:MariaHalt
  • 3
  • 3
6 Comments
 
LVL 43

Accepted Solution

by:
zephyr_hex (Megan) earned 500 total points
ID: 41824288
This happened to me just the other day.
The problem, for me, turned out to be that the other pages were making references to the AJAX Control Toolkit using legacy syntax.  In other words, the other pages depended on an older version of the toolkit.

So, there are two options
1 - Update the other pages to current syntax
or
2 - Uninstall the Nuget package and find a copy of the old .dll, and put that in the Bin folder of your solution.

I ended up using option 2 because I didn't want to step on other developer's toes.. and I didn't really want to go and test every page that references the toolkit using legacy syntax.  I couldn't find the older version of the toolkit via NuGet.
0
 
LVL 43

Expert Comment

by:zephyr_hex (Megan)
ID: 41827242
Did you have the chance to see if this resolved your problem?
0
 

Author Comment

by:MariaHalt
ID: 41828494
I uninstalled the nugget package and copied the dll from the trunk, but am still getting the same error.  Any thoughts?
0
Technology Partners: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

 

Author Comment

by:MariaHalt
ID: 41828554
Got it working!  In addition to your #2 solution, I had to change the TagPrefix from "cc1" to "ajaxToolKit".
Thank you!
0
 

Author Closing Comment

by:MariaHalt
ID: 41828555
Thank you for the quick response and checking in on me!
0
 
LVL 43

Expert Comment

by:zephyr_hex (Megan)
ID: 41828732
Glad you got it working.  I was pounding my head against my desk for the better half of a day trying to fix it.
0

Featured Post

Resolve Critical IT Incidents Fast

If your data, services or processes become compromised, your organization can suffer damage in just minutes and how fast you communicate during a major IT incident is everything. Learn how to immediately identify incidents & best practices to resolve them quickly and effectively.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Today I had a very interesting conundrum that had to get solved quickly. Needless to say, it wasn't resolved quickly because when we needed it we were very rushed, but as soon as the conference call was over and I took a step back I saw the correct …
International Data Corporation (IDC) prognosticates that before the current the year gets over disbursing on IT framework products to be sent in cloud environs will be $37.1B.

685 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question