SignTool reported an error - The signer's certificate is not valid for signing


  • I'm having a problem publishing an application written in VB.NET in VS2005 using ClickOnce.

    I get the error:

    Code Snippet

    Error    2    SignTool reported an error 'Failed to sign bin\MyApp.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\MyApp.publish\\setup.exe

    '.    MyApp

    I have just installed visual studio 2008 - could this be causing the problem? Any idea how to get round it?
    14 Februari 2008 16:05


  • I sorted it. I went to the project properties, clicked Signing, then Create Test Certificate. It warned me about it being signed differently when I published it but it worked and my app updated succesfully when I ran it.


    The above didn't work. I needed to renew my certificate using the renewcert thing you can find here:
    14 Februari 2008 16:12

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