javascript - cloudinary.openUploadWidget not working? -

i trying use cloudinary's api allow users upload profile picture on app i'm developing. using 'cloudinary.openuploadwidget' in javascript.

so far, good. when try , upload image, getting error: "upload failed: upload preset not found".

any experience this?

here image upload settings: cloudinary settings

looks didn't set upload preset. can cloudinary settings page , selecting "add upload preset".

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