Publish error again, error: 0x80880253

Question

I recently repaired Visual Studio 2005 after getting a publish error.

Now I get the following error. How do I fix it?

Error 2 SignTool reported an error 'Failed to sign bin\Release\TBRHelp.publish\setup.exe. SignTool Error: ISignedCode::Sign returned error: 0x80880253

The signer's certificate is not valid for signing.

SignTool Error: An error occurred while attempting to sign: bin\Release\TBRHelp.publish\setup.exe

Solution

I had this exact same problem last week. To solve this problem in Visual Studio 2008, I did the following:

1. I right clicked on the project and selected Properties.

2. Then I clicked on tag Signing.

3. Then I checked the checkbox next to Sign the ClickOnce manifests.

4. Then I pressed the button Create Test Certificate... and followed the process.

This worked for me, I hope it works for you.