Cloudinary - Upload preset must be in whitelist for unsigned uploads

I want to upload image, to Cloudinary, taken directly from camera in Ionic using cordova camera plugin. I am getting an error of code 1, having message “upload preset must be in whitelist for unsigned uploads.” How to solve this error.Please help.

From the Cloudinary website:

Accessing Cloudinary API for uploading and managing resources requires secure authentication. We use a standard method for signing API request parameters with your unique secret.

Cloudinary auto-generates for you a pair of keys: the API Key and API Secret. They are displayed in the Management Console’s dashboard. You need to use them for communicating with Cloudinary API and signing your requests.

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