This post shows you how to solve the problem

Severity Code    Description Project File    Line    Suppression State
Error       An error occurred while signing: Failed to sign bin\x86\Debug\app.publish\Client.exe. SignTool Error: No certificates were found that met all the given criteria.

To fix the problem you need to right-click on your project, then select the Properties from menu->Click Signing tab->Uncheck Sign the ClickOnce manifests