Hello, I attached my app with Windows Store (using option in VS). Next, I made a package. Next, I try to validate It (runing test in VS). I get such error. How to solve such problem. I think that my app is already signed, and I dont know how to sign it again.

Hi @BitSmithy ， Let me summarize here. According to the error message, we need to check whether this certificate is valid. It is recommended to select another certificate or create a new one. Thank you. If the answer is the right solution, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment". Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.

App testing error

BitSmithy 2,141

Hello,

I attached my app with Windows Store (using option in VS).

Next, I made a package.

Next, I try to validate It (runing test in VS). I get such error.

validation_error

How to solve such problem. I think that my app is already signed, and I dont know how to sign it again.

Junjie Zhu - MSFT 18,966 Reputation points Microsoft Vendor

2024-06-25T02:37:18.4066667+00:00

Hi @BitSmithy ，

If you're publishing your app in Microsoft Store, your app will be signed with a trusted certificate for you.

What type of certificate did you use? Did you get it from a store? Or was it just a temporary certificate?

Thank you.
BitSmithy 2,141 Reputation points

2024-06-25T09:34:34.52+00:00

I dont know, how to check it? I attached my app with Windows Store using VS function: Project > Publish > Attach app with store, so I thing it should have to be right signed (but maybe I am wrong here).
Junjie Zhu - MSFT 18,966 Reputation points Microsoft Vendor

2024-06-26T10:06:34.22+00:00

Hi @BitSmithy ，

Could you try selecting a different certificate? There should be a list for you to choose from(After click Project > Publish > Attach app with store).
BitSmithy 2,141 Reputation points

2024-07-02T08:30:37.8933333+00:00

This probably helped. I assigned app with store, next I choosed certificate from Certifitates Warehouse. So post it as answer.

Accepted answer

Junjie Zhu - MSFT 18,966 Reputation points Microsoft Vendor

2024-07-02T09:07:59.55+00:00

Hi @BitSmithy ，

Let me summarize here. According to the error message, we need to check whether this certificate is valid. It is recommended to select another certificate or create a new one.

Thank you.

If the answer is the right solution, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".

Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.
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