getThumbnail error unsupported image

[zackstam]

My app using dropbox to put the uploaded photos, but sometime when I try upload image with size 10 MB, occured error unsupported image, . any one can help to get thumbnail with the size 

[Greg-DB]

It sounds like you're referring to the 'unsupported_image' error documented for the /2/files/get_thumbnail endpoint (and corresponding native methods in the official SDKs). 

This error will be returned if the Dropbox API can't convert the requested image file to a thumbnail, such as if the file is too large, or doesn't contain valid image data. If the image isn't supported, there isn't a way to work around that to get the endpoint to return a thumbnail for that image.