nuget can't connect to https://nuget.telerik.com/nuget

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Russ
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Russ asked on 22 Feb 2017, 04:59 PM

I periodically can not connect to NuGet from Visual Studio. This is happening at the moment. Is the nuget.telerik.com server down?

When I use this in my browser...  

https://nuget.telerik.com/nuget

I am prompted for login, and after entering my credentials I see the page below

but in Visual Studio, it keeps on asking for my credentials when I try to use NuGet.

 

<?xml version="1.0" encoding="UTF-8" standalone="true"?>
<service xmlns="http://www.w3.org/2007/app" xmlns:app="http://www.w3.org/2007/app" xmlns:atom="http://www.w3.org/2005/Atom" xml:base="https://nuget.telerik.com/nuget/"><workspace><atom:title>Default</atom:title><collection href="Packages"><atom:title>Packages</atom:title></collection></workspace></service>

Russ
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commented on 22 Feb 2017, 05:32 PM

This is working now. Go figure?

4 Answers, 1 is accepted

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Lance | Manager Technical Support
Telerik team
answered on 23 Feb 2017, 09:40 PM
Hello Russ,

I'm glad to see you're up and running.

If this happens again, sometimes it's useful to close Visual Studio completely (this clears credentials) reopen the solution and then open the Nuget Package Manager. After you sign back in (and check the remember me checkbox) it shouldn't ask for authentication until the next time.

I'll mark this ticket as closed, but let us know if you experience any further trouble.

Regards,
Lance | Tech Support Engineer, Sr.
Telerik by Progress
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Aryeh
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commented on 04 Dec 2017, 10:16 PM

I am getting this error now and restarting Visual Studio is not helping!

Aryeh

Lance | Manager Technical Support
Telerik team
commented on 04 Dec 2017, 11:51 PM

Hello Aryeh,

Try deleting the package source, then re-adding it using a slightly different name. This will prompt NuGet Credentials manager to appear again where you can re-enter your Telerik credentials for a new connection.

Note that this tends to happen with VS 2015, I've not seen an instance of this happening in VS 2017 yet.

Regards,
Lance | Tech Support Engineer, Sr.
Progress Telerik
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Aleksandr
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Iron
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commented on 07 Dec 2017, 07:47 PM

have the same issue right now, cant get package from 

https://nuget.telerik.com/nuget

 

server constantly asks for login / pass

ian
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commented on 19 Dec 2017, 10:37 AM

I have just tried this in VS2017 Prof and get the following:

[Telerik1] The V2 feed at 'https://nuget.telerik.com/nuget/Search()?$filter=IsLatestVersion&searchTerm=''&targetFramework=''&includePrerelease=false&$skip=0&$top=26&semVerLevel=2.0.0' returned an unexpected status code '401 Logon failed.'.

I tried closing Visual Studio and delete/create package source but this does not clear the credentials.

It looks like I will have to add the assemblies manually.

 

Yana
Telerik team
commented on 21 Dec 2017, 03:38 PM

Hi Ian,

I've just tested connecting to the Nuget Server from VS 2017 and it seems running without a problem.

Regarding the "Logon failed" error - you could try to update the credentials for Telerik Nuget Server from Windows' Control Panel > Credential Manager > Windows Credentials.

Another approach I could suggest is to try manually storing the credentials, see this SO post for the CLI command.

Let me know whether this helps.

Regards,
Yana
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Sheng Kuo
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commented on 26 Dec 2017, 06:13 AM

Hello,

I've changed my login password before, now I can't get any search result from nuget server of Telerik,

I always got a error message like the following:

https://nuget.telerik.com/nuget/Search()?$filter=IsLatestVersion&searchTerm=''&targetFramework='xamarinios10%7Cmonoandroid60'&includePrerelease=false&$skip=0&$top=26&semVerLevel=2.0.0' 的 V2 摘要傳回未預期的狀態碼 '401 Logon failed.

 

Could you help please?

 

 

Sheng Kuo
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commented on 26 Dec 2017, 06:17 AM

By the way, I also remove credentials related to Telerik from  Windows Credentials,

Nuget Manager shown up a user/pwd prompt to me, but even if I give a correct user/pwd, same error shown again.

Yana
Telerik team
commented on 28 Dec 2017, 08:05 AM

Hi Sheng,

Indeed, it seems there is a temporary issue with the Nuget server and at the moment it is not available - the team is working on fixing it.

In the meantime, you could download the needed UI for Xamarin Nuget packages from the Downloads section inside your Telerik account, copy them to a local folder on your machine and add a package source inside Nuget Package Manager settings pointing to that folder - I've attached a screenshot to show you these settings.  In this way,  you could continue developing using UI for Xamarin components.

I will update the thread when the issue is resolved. I am sorry for the caused inconvenience.

Regards,
Yana
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Sheng Kuo
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commented on 28 Dec 2017, 03:52 PM

Yana, The nuget server seems working fine now. 

I can access the Nuget server of Telerik, maybe you've already fixed it.

 

Thank you for your attention!

Yana
Telerik team
commented on 29 Dec 2017, 07:38 AM

Hi Sheng,

Yes, the Nuget server is up and running. Thank you for confirming that.

Regards,
Yana
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Adam
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commented on 11 Apr 2018, 10:36 PM

This appears to be happening again... since April 9 I my Bitrise builds are failing because they cannot download the latest version of the Telerik NuGet packages from the source... lucky for me Bitrise stores a NuGet cache and I was able to revert the Telerik NuGet version to the previous one and use the cache to build my releases. not cool. 
David
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commented on 12 Apr 2018, 02:38 AM

Can confirm that this has started happening again. Appears to have been at least within the last 24 hours, maybe more.
Mick
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commented on 12 Apr 2018, 03:13 AM

The certificate expired yesterday
Yana
Telerik team
commented on 12 Apr 2018, 10:35 AM

Hi guys,

The issue with the expired certificate is already resolved.  Let us know if you still experience such errors.

Regards,
Yana
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David
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commented on 12 Apr 2018, 11:34 PM

Can confirm this is now working, thanks Team.
David Marconnet
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commented on 13 Apr 2018, 07:29 PM

We cant hit https://nuget.telerik.com/nuget today from VS 2017.  Getting "no packages found".  We are able to load from a browser and see the XML though.
Lance | Manager Technical Support
Telerik team
commented on 13 Apr 2018, 08:01 PM

Hello David,

I just tested it and the packages are loading, you may have timed out (look at nuget output) or the search term might be a little off. 

Here's a screenshot to help guide you on your next attempt:




I see that you primarily work with AJAX products, this is a Xamarin thread. However, just to make sure, I did a second search for "AJAX", and the appropriate packages loaded as well:



Regards,
Lance | Tech Support Engineer, Sr.
Progress Telerik
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Shalin
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commented on 30 May 2018, 09:20 AM

hi

having same problem after successful use, when try to switching to telerik nuget server it stopped.

Error is : 

[TelerikNu] The V2 feed at 'https://nuget.telerik.com/nuget/Search()?$filter=IsLatestVersion&searchTerm=''&targetFramework='portable45-net45%2Bwin8%7Cnet46%7Cmonoandroid81%7Cxamarinios10%7Cportable45-net45%2Bwin8%2Bwp8%2Bwpa81'&includePrerelease=false&$skip=0&$top=26&semVerLevel=2.0.0' returned an unexpected status code '401 Logon failed.'.

 

1) Telerik didn't ask me login credential

2) tried removing and add again nuget source

3) tried clearing nuget cache 

I am using visual studio 2017 enterprise version 15.7.2, .Net framework version 4.7.02556

Shalin
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commented on 30 May 2018, 11:03 AM

Following steps worked for me,

1) Delete Telerik credential (i used Windows Credential Manager)

2) Then open "VS 2013" open one of project refresh telerik nuget then enter credential again

3) open vs 2017, TaDaa.... its working

Silly.......

Andreas
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commented on 20 May 2020, 03:40 PM

!SOLVED!
If someone has the same Problem:
Problem is the trailing "/"
"https://nuget.telerik.com/nuget" works but "https://nuget.telerik.com/nuget/" does not work. Also wrong in telerik documentation.
Lance | Manager Technical Support
Telerik team
commented on 20 May 2020, 03:47 PM

Hi Andreas,

Correct, if there is a trailing slash, then the query will never be successful.

For example, if the source URL has a trailing slash, then the question will get constructed like this:

https://nuget.telerik.com/nuget/?queryGoesHere

That will not work, because the package query needs to be formed like this:

https://nuget.telerik.com/nuget?queryGoesHere

Documentation Fix

The UI for Xamarin documentation is correct - https://docs.telerik.com/devtools/xamarin/installation-and-deployment/telerik-nuget-server 

Which documentation are you referring to? I'll fix it asap.

Regards,
Lance | Team Lead - US DevTools Support
Progress Telerik

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Andreas
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commented on 20 May 2020, 03:55 PM

Wow, super quick reply. Found the fix for myself because the documentations are different.

https://docs.telerik.com/aspnet-core/knowledge-base/setup-private-nuget-feed-azure

is wrong, see attachment
Lance | Manager Technical Support
Telerik team
commented on 20 May 2020, 04:11 PM

Hi Andreas,

Thank you! I have opened a Pull Request to fix the nuget.config - https://github.com/telerik/kendo-ui-core/pull/5786 

Thank you for bringing the incorrect documentation example to my attention. As a small token of appreciation, I have updated your Telerik Points.

Regards,
Lance | Team Lead - US DevTools Support
Progress Telerik

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Lance | Manager Technical Support
Telerik team
answered on 07 Dec 2017, 09:35 PM
Hello Alex,

You can quickly determine if this a problem with the server, or a problem with Visual Studio 2015. Open your web browser and do the following: 

1 - Enter the URL in browser: https://nuget.telerik.com/nuget
2 - The web browser will prompt you for your credentials

If you successfully connect, you'll be served the WebService details and they'll appear on the page

...
</service>


This means that the problem is with Visual Studio 2015 the NuGet Credential manager for Visual Studio 2015. There is a known issue where sometimes it clips characters from the end of the auth request, so the credentials being sent to our server are wrong, even though you typed in the correct ones.

Try my suggestion to the other folks in this thread, delete the package source and re-add it.  Alternatively, if you can, switch to Visual Studio 2017. I have not received a report of this happening in VS 2017.

Let us know how it goes.

Regards,
Lance | Tech Support Engineer, Sr.
Progress Telerik
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Lance | Manager Technical Support
Telerik team
answered on 30 May 2018, 11:58 AM
Hi Shalin,

The fastest way to fix this is to directly edit the saved credentials using Windows Credential Manager.

1 - Open the Credential Manager and switch to "Windows Credential"
2 - Scroll down and find any credential for "nuget.telerik.com"
3 - Expand the item, click "edit", and update the password

There can sometimes be two entries, one named "VS_Credentials_nuget.telerik.com" and another named "nuget.telerik.com". To help guide you, here's a screenshot:



Regards,
Lance | Tech Support Engineer, Sr.
Progress Telerik
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Dana
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commented on 13 Jun 2018, 07:51 PM

I am able to authenticate via Nuget however when I choose a package to install I get the following cryptic error. I have not found a solution for this. Any ideas?

 

SeverityCodeDescriptionProjectFileLineSuppression State
ErrorFailed to fetch results from V2 feed at 'https://nuget.syncfusion.com/nuget_aspnetmvc/nuget/getsyncfusionpackages/aspnetmvc/Packages(Id='KendoUIProfessional',Version='2018.2.530')' with following message : Response status code does not indicate success: 500 (Internal Server Error).
Response status code does not indicate success: 500 (Internal Server Error).0

Lance | Manager Technical Support
Telerik team
commented on 13 Jun 2018, 08:38 PM

Hello Dana,

That error is coming from Syncfusion's NuGet server, not ours. Your NuGet Package Manager is trying to search the Syncfusion NuGet server for Kendo UI.

Double check that your Package Sources list is using https://nuget.telerik.com/nuget and not https://nuget.syncfusion.com as the source URL for the "Telerik" package source.

Here's a screenshot of what it should look like:



Regards,
Lance | Tech Support Engineer, Sr.
Progress Telerik
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Teemee
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commented on 01 Feb 2019, 06:03 AM

Hello, VS is not prompting the credentials window. I already did what you said in the previous messages. See screenshot.
Teemee
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commented on 01 Feb 2019, 06:17 AM

Hello, VS is not prompting the credentials window anymore. I previously provided the wrong account. I already restarted visual studio, clear the NuGet cache and delete the package Source. See screenshot.
Lance | Manager Technical Support
Telerik team
commented on 01 Feb 2019, 03:46 PM

Hi Teemee,

When Visual Studio no longer gives you the credentials popup, the only was to update the stored credentials is to use the windows Credential Manager.

Switch to the "Windows Credentials" tab, the scroll down through all the stored credentials and look for any items that use the server's URL. Expand the item(s) and click the edit button to make changes (i.e. change email or password).

Here's a screenshot to guide you



That being said, we are aware of a small problem with the NuGet server where periodic 404s occur. Just try again until it connects, this is a temporary issue that resolves after a minute or two.  We are pushing out a permanent fix for this next week.

Regards,
Lance | Technical Support Engineer, Principal
Progress Telerik
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Teemee
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commented on 04 Feb 2019, 02:48 AM

Hi Lance, I already previously check the credentials manager. For some reason the password does not change after editing and saving so I decided to delete the credentials assuming it will show the pop-up window, but it still not showing. I try to add the credential in "Add a windows credential" but it says "This information cannot be saved. Make sure the information is correct and that all required fields are completed" I provided the network address as https://nuget.telerik.com/nuget with my username and password. Any other recommendation for this issue?
Teemee
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commented on 04 Feb 2019, 03:20 AM

Hello Lance, I just now saw a Generic Credential with Telerik details in Credentials Manager. I tried to update the username and password, delete then add the Telerik resource package, clear the cache of NuGet and restart the visual studio. After all of that I try to search NuGet packages from the telerik package source but It did not show anything. See images attached for results. Any recommendations for this issue?
Teemee
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commented on 04 Feb 2019, 05:44 AM

Hi Lance, I already seen the NuGet packages by installing a trial version of Telerik UI for Xamrin.
Lance | Manager Technical Support
Telerik team
commented on 04 Feb 2019, 04:39 PM

Hello Teemee,

I've discovered the reason for your trouble, it seems you have two accounts with us:

- One account, which appears to be your work account, has a trial license that was started yesterday
- The other account (yahoo email) has no licenses.

This is the main reason why you won't see the Xamarin package in the Telerik NuGet feed. The Telerik NuGet server checks your account for licenses, and only shows the products that account can install.


Important - Licensed User

It is not uncommon for an employer to purchase the license, but you are the developer who needs to use it. If this is the case, have your employer/purchaser assign you as a Licensed User in the Manage Licensed Users portal

Once you're assigned as a Licensed User, you will see the items in the NuGet feed for the account that has the licenses. Additionally, when you're assigned a license, you get to use that license's support package an open support tickets.


I hope this information was helpful.

Regards,
Lance | Technical Support Engineer, Principal
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Teemee
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commented on 06 Feb 2019, 02:12 AM

Hi Lance,

Noted. I already used my company email account.  Is there any documentation in Calendar control about showing a detail view when clicking a day in monthview?

Lance | Manager Technical Support
Telerik team
commented on 06 Feb 2019, 07:41 PM

Hi Teemee,

It looks like Yana replied to your question in the identical support ticket (1386539).

If you have any further questions about the Calendar demo, please reply in the support ticket so that Yana can help directly.

Regards,
Lance | Technical Support Engineer, Principal
Progress Telerik
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Ahsen
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commented on 22 Feb 2019, 11:58 PM

Hello,
    

Ahsen
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commented on 23 Feb 2019, 12:01 AM

Hello,
   What I did was removed the information from Credentials Manager. Deleted the Nuget package source from Visual Studio. Exited both programs.

Configured the NugetPackage Source:
https://docs.telerik.com/aspnet-mvc/getting-started/nuget-install

Example: NuGet Sources Add -Name "Telerik.com" -Source "https://nuget.telerik.com/nuget" -UserName "user@Example.com" -Password "<Super_Secure_PW>"

Opened up Visual Studio and all started to work again.

Thank you,
Ahsen

liam
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commented on 15 Mar 2019, 11:13 AM

Really you are the best.
Michael
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commented on 16 Oct 2019, 06:49 PM

About 12 hours of frustration and countless web searches and a support ticket with Telerik that has gone nowhere.

This was finally the solution for me. The duplicate entries were causing the problem. I suspect that this was caused by the installation of the Telerik Blazor demo control suite.

The solution is completely unobvious and not documented anywhere that I have been able to find except for here.

Thank you for the very helpful post.

 

Michael

Jan
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commented on 21 Sep 2020, 06:40 PM

Hi,

I tried everything posted here (remove nuget source, remove credentials, restarted everything several times etc.) but only getting:

"401 Logon failed."

when trying to install the blazor Telerik.UI.for.Blazor.

This is very frustrating.

0
Lance | Manager Technical Support
Telerik team
answered on 21 Sep 2020, 07:37 PM

Hello Jan,

It looks like you just got the license assigned and you've never had a license before. The most likely reason for the login issue is the NuGet server hasn't synced up yet. It normally takes between 20 and 30 minutes, but sometimes can take longer if you're a new customer. Worst case scenario, it does a full sync every 24 hours.

Try again in 1-2 hours, if that still doesn't work open a Technical Support Ticket here and the Blazor team will take a closer look to make sure everything is all set tonight.

 

Invalid Characters in Password

Although this is typically only a problem in CI/CD, an ampersand in the password can break parsing (because it is an escape character). See the comment in my blog post https://www.telerik.com/blogs/azure-devops-and-telerik-nuget-packages

Regards,
Lance | Manager Technical Support
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Jan
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commented on 22 Sep 2020, 07:09 AM

Hello Lance,

thank you for the quick reply. The hint with the invalid characters solved it.

Just for your information - I did not have any ampersands in there but section signs ("§"). I removed them from my password, now it's working. This took me many hours to find out which I better could have spent working... please update your documentation.

Regards

Jan

Lance | Manager Technical Support
Telerik team
commented on 22 Sep 2020, 01:29 PM

Hi Jan,

This thread is for Xamarin, but I'm guessing you're referring to UI for Blazor documentation? In either case, I'll see about adding more 'tips and tricks' to the different NuGet documentation articles for the different products.

This problem is not specific to Telerik, we use a standard NuGet server implementation with authentication. I will also report the problem to Microsoft in the hopes a more permanent server-level fix can be implemented.

Regards,
Lance | Manager Technical Support
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Jan
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commented on 22 Sep 2020, 03:18 PM

Hi Lance,

yes, I meant the UI for Blazor docs. Sorry if I posted it in the wrong thread, but I guess also Xamarin users might run into that trouble.

Lance | Manager Technical Support
Telerik team
commented on 22 Sep 2020, 03:32 PM

Hi Jan,

A quick update for you. I added a new section to the Blazor docs so that folks may find it easily in the future.

As part of that new section, I have added a quick PowerShell tip to HtmlEncode so you can keep any special characters you want in your password

Add-Type -AssemblyName System.Web
[System.Web.HttpUtility]::HtmlEncode('my§uper&P@§§word')