Kindly explain how to solve this error. Try to upload updated .aab file generated from Watch face studio version 1.4.13. unfortunately getting below error. this is the screen short of the error.
An error occurred while running bundletool build-apks on your uploaded App Bundle. Ensure that your App Bundle is valid by running bundletool build-apks locally and try again. Learn more. Error: Watch face cannot have any files in the root of the package.
I have absolutely the same issue. I uploaded the first package to the Play Console without any issues. Then wanted to upload an updated release when suddenly any .aab I create, causing the same error (for any project). Please let me know if you’ll find the solution 
By the way, I have no idea if it’s connected, but after I uploaded my first version without any issues, I installed Android Studio (Preview version) on my Mac. I tested my watch faces in the emulator, found some things to update, went back to Watch Face Studio, published a new build, and that’s when I faced this error. Since then, every build I have done in Watch Face Studio has had this error (old and new projects).
Exact same issue here. I uploaded 2 versions initially just fine, and then any subsequent versions come up with the “…root of the package” error.
I’d love to know where I’m going wrong
I’m having the same issue, I’m trying to use the latest beta to see the sync-to-device step goal, but I think this feature is also not working. I’m new to this forum, is there a moderator that will see this post and act on it?
I update for the first time with the new version and it’s ok but I can’t install it through the complication app.
When installing on watch will ask for permission, but there is no accept and only Cancel.
Too tired of google.
Sync with Device will not be enabled until Wear 4 is released and installed. Until then it is set to default of 6,000 steps.
See FAQ’s 11,12 and 13 for WFS 1.4.13 beta issues
Ron
Samsung Developer Relations
Hello, Ron! Can you provide any insights into what might be causing problems with this:
An error occurred while running bundletool build-apks on your uploaded App Bundle. Ensure that your App Bundle is valid by running bundletool build-apks locally and try again. Error: Watch face cannot have any files in the root of the package.
If you are just following instructions from WFS documentation it may not be correct.
See this thread (in this case people were uploading an Android companion app and Watch app at the same time) but how to upload a watch app changed in March and may be your issue.
also see this Play Console documentation for publishing Wear Apps
Ron
Samsung Developer Relations
no, that is another issue, and yeah, it was related to using the wrong track (not Wear OS only).
For this topic, I suddenly can’t publish anything from Watch Face Studio. Uploading any build from WFS leads to the same error.
@mikhail @Sen @Uninhibyted @AnakaraKool
I can’t contact the WFS team now I am off for the holiday weekend and they are in Korea. I’ll send them a letter.
It is a very bad idea to upload content developed with WFS 1.4.13 Beta to the seller store. It is probably going to give a bad user experience and you could get bad reviews.
There a lot of issues being reported on this discussion about quirks when run on a device.
Ron
Samsung Developer Relations
Appreciate it, Ron.
We’re looking forward to receiving an update from the WFS team.
Enjoy a fantastic holiday weekend!
oh, I get it. thanks for the answer.
I’m waiting for the update on the error reported by OP about uploading in the play store. thanks, Ron
