Both the Certificate file and the Private key file must be set
When Authenticode signing is enabled for a deployment project, both the certificate file and the private-key file must be specified. You must either specify both files, or disable Authenticode signing.
To correct this error
To specify both a certificate file and a private-key file:
- Enter the name of the certificate file (.spc) in the Certificate file field and the name of the private-key file (.pvk) in the Private key file field.
To disable Authenticode signing:
- Uncheck the Authenticode signature check box.
Build, Configuration Settings, Deployment Project Properties Dialog Box | Deployment and Authenticode Signing