Solution
This error likely means that you have a web service that references permissions, but its permissions file isn't getting installed.
The default installation directory for these files is C:\Program Files\National Instruments\Shared\Web Server\conf\htpriv.d.
If you are not certain about what's causing this error, you might need to get additional information from NI Package Manager logs when deploying your web service.
If reading through the logs is not helping, please contact NI Technical Support with the logs.