Program will not build

Question

I try to create a program and I get an error:

Error 2 An error occurred while signing: Failed to sign bin\Release\app.publish\\setup.exe. SignTool Error: ISignedCode::Sign returned error: 0x80880253 The signer certificate is not valid for signing. SignTool Error: An error occurred while attempting to sign: bin\Release\app.publish\\setup.exe program1 

Any help is appreciated.

Answer 1

Check your certificates or not

View or manage certificates

To resolve this issue in Visual Studio

• Right-click the project and select Properties.
• Click on the Signing tag.
• Check Sign Signature ClickOnce.
• Click the Create Test Certificate ... button and follow the Process.