SignTool Error: No certificates were found that met all the given criteria
An error occurred while signing: Failed to sign bin\Debug\app.publish\ConnectionTesting.exe. SignTool Error: No certificates were found that met all the given criteria Error signing Project > Right click 'properties' Create new certificate here **We need to create new because the certificate sign with another name/ the certificate expired Build the project after create new signing certificate Done :-) Reference : https://developercommunity.visualstudio.com/t/failed-to-sign-bindebugapppublishunfactorexe-signt/1318602#T-N1320498