Failed to download resource from "https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/core.min.js"

Since this morning, building a solutions fails because the core.min.js cannot be found. No changes to the solution or the code have been made.
If anyone has any idea on what could have changed, please let me know.

The message we get is the following:

> 2020-07-22T10:39:32.4094067Z ##[error]C:\Windows\ServiceProfiles\NetworkService\.nuget\packages\microsoft.web.librarymanager.build\2.0.76\build\Microsoft.Web.LibraryManager.Build.targets(35,9): Error : Microsoft.Web.LibraryManager.Contracts.ResourceDownloadException: Failed to download resource from "https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/core.min.js" ---> System.Net.Http.HttpRequestException: Response status code does not indicate success: 404 (Not Found).
>    at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
>    at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
>    at Microsoft.Web.LibraryManager.WebRequestHandler.<GetStreamAsync>d__7.MoveNext()
>    --- End of inner exception stack trace ---
>    at Microsoft.Web.LibraryManager.WebRequestHandler.<GetStreamAsync>d__7.MoveNext()
> --- End of stack trace from previous location where exception was thrown ---
>    at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
>    at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
>    at Microsoft.Web.LibraryManager.CacheService.<DownloadToFileAsync>d__10.MoveNext()
> --- End of stack trace from previous location where exception was thrown ---
>    at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
>    at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
>    at Microsoft.Web.LibraryManager.CacheService.<RefreshCacheAsync>d__12.MoveNext()
> --- End of stack trace from previous location where exception was thrown ---
>    at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
>    at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
>    at Microsoft.Web.LibraryManager.Providers.Cdnjs.CdnjsProvider.<RefreshCacheAsync>d__26.MoveNext()

That is rather a question for https://cdnjs.discourse.group than here. That’s not Cloudflare related.

Seems they dropped version 3.3.1 for some reason. 3.5.1 still is in place, just replace the link.

Thank you for the reply.
Changing the version did solve the build issue.
I had to make one extra change in the libman.json. The jqueryui had to be added explicitly, other then that, it seems to work :slight_smile:

{
“library”: “[email protected]”,
“destination”: “Scripts/lib/jquery”
},
{
“library”: “[email protected]”,
“destination”: “Scripts/lib/jqueryui”
},