Importing files from Stretch to Fresco

Hi,
There is limitation o n importing the project from sketch to fresco. First all your project of sketch and draw will be auto import  to the Fresco for the first time you logged in. But for migrating your project there should be at least 500 MB cloud space available. Once migration start, that will kick, importing of the sketch and darw project till your cloud quota is not reached to the lower limit of space in (500MB). After that further automatic migation of the Sketch/Draw project will stop working.
Second thing, you need to check if you sketch project is visible on the cloud. Check on the web ->https://assets.adobe.com/mobilecreations. If not it means those project are not avialable on the cloud, so you need to turn on cloud sync for sketch to complete the sync. Then only those project will be available to import in Fresco and that can be imported if you have left 500 MB space in you creative cloud. You can check your space in fresco in app settings->general.

Hope I was clear and didn't confused you.

What are you seeing in the upload tab now?
I can Open in Adobe Desktop Apps or Send to Creative cloud Files as PSD or PDF still so I'm interested to know why your version of Sketch isn't showing these options.

You could also use the Clipboard in Sketch, but this would flatten the image unless you took a copy of each layer separately then copied it across, but that might be quite time consuming.