winget source error - 0x8a15000f : Data required by the source is missing

[azurenekowo]

Brief description of your issue

I can't download any packages using winget. Anything will just return 0x8a15000f : Data required by the source is missing

Steps to reproduce

Install App Installer from Microsoft Store
Install any winget package

Expected behavior

It should continue with the installation

Actual behavior

Failed in attempting to update the source: winget
Failed when searching source: winget
An unexpected error occurred while executing the command:
0x8a15000f : Data required by the source is missing```

### Environment

```shell
Windows Package Manager v1.10.320
Copyright (c) Microsoft Corporation. All rights reserved.

Windows: Windows.Desktop v10.0.26100.1742
System Architecture: X64
Package: Microsoft.DesktopAppInstaller v1.25.320.0


(winget source list)

Name    Argument                                      Explicit
--------------------------------------------------------------
msstore https://storeedgefd.dsx.mp.microsoft.com/v9.0 false
winget   https://cdn.winget.microsoft.com/cache        false

[similar-issues-ai]

We've found some similar issues:

• 0x8a15000f : Data required by the source is missing #3068 , similarity score: 88%
• All Winget Packages Failing #3410 , similarity score: 83%
• Repository returns resource does not exist #4591 , similarity score: 82%
• Winget is not working #3804 , similarity score: 82%
• Failed to open the source #998 , similarity score: 82%
• Failed in attempting to update the source: winget #3525 , similarity score: 81%

If any of the above are duplicates, please consider closing this issue out and adding additional context in the original issue.

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[azurenekowo]

Apparently I had messed up my local DNS resolver by adding an entry for cdn.winget.microsoft.com. Removing it and flushing my pihole worked perfectly.