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Unable to publish VSIX to the Marketplace "The package contains an invalid VSIX manifest file"
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(294.40000000000003, 68%, 38%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ER%3C/text%3E%3C/svg%3E)
Rita
1
Reputation point
Hello,
We're using Azure Publish VSIX task that started failing today:
VSSDK: error VsixPub0029 : An error occurred while communicating with the marketplace: UploadFile: The package contains an invalid VSIX manifest file. This VSIX does not apply to any product installed on this machine. The problem could be that the VSIX manifest's format is not recognized, or that the manifest has been corrupted.
We have made no changes to the manifest and it was already uploaded successfully to the Marketplace in the past.
A quick search shows this exact issue on stackoverflow, also reported today: https://stackoverflow.com/questions/70840594/cannot-publish-visual-studio-extension-vsixpub0029-error
Is there a solution for this?
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(140.8, 78%, 23%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ETS%3C/text%3E%3C/svg%3E)
Tianyu Sun-MSFT 27,356 Reputation points Microsoft Vendor2022-01-26T09:37:51.927+00:00 Hi @Rita , looks like it’s a potential issue, does it work now? If it still doesn’t work, I recommend you report this issue to Visual Studio product team directly on Developer Community.
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