Oculus SDK not found or older than 1.0

So I have been trying to upload my app to the alpha channel, but every time it gets close to finishing I get this error: Oculus SDK not found or older than 1.0. However, in Unity it says the Oculus SDK version is 1.51. Is there a way to delete the core of the Oculus SDK and reimport it on its own? Whenever I delete the whole Oculus folder and reimport the problem persists. I am using Unity version 2017.4.40f1 LTS, Oculus Utilities version 1.49.0, OVRPlugin version 1.49.0, SDK version 1.51.0.