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
Can confirm this is an issue. Maybe it’s WFS 1.4.13, maybe it’s because of how Play Store handles new Watch Face format? Definitely needs urgent fix.
Exactly it. I’m stuck with 2 faces created by beta, and no way to fix it yet.
I have recreated the face with the old version and uploaded it but it has not been approved by google.
The beta version is so bad with silly bugs, it should be warned that it’s unstable and has bugs…
Since GWD has always been in beta before, it’s easy to get confused when releasing a beta version of WFS without a warning.
Very same issue here. I was really frustrated, still am, but now I found this thread and hopefully it will have a fix.
I’m in the same situation, I am just trying to release my first build and I run into this issue. I don’t want to recreate the whole thing. I need to stop joining in on beta versions. I hope we get a fix for this soon.
I agree and think the release notes should have at least had a warning since there is not going backwards. I usually get the release a few days ahead of time, so I will be much more careful about this in the future.
Having said that in the WFS team’s defense they are not used to the previous teams always beta methodology.
Ron
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.
Hello Ron,
I hope you are fine…
Any updates on this…?
I have made a watchface and can’t submit it to the Playstore…
It would be great if the WFS Team could release an update allowing us to import from the beta and build on a stable release…
Or perhaps an ETA for the fix would be appreciated as well…
Regards…
For people who created a watch face on 1.4.13 and are looking to downgrade, it is possible with a little bit of work.
I can’t say there wouldn’t be any possible bugs involved with the downgrade but I’ve manage to build a watch face.
Steps to downgrade project file:
"projectFileVersion": "1.110313"
Before
"appLabel": {
"stringResId": "ID_LABEL_EXAMPLE"
},
After
"appLabel": "EXAMPLE"
6E 6F 72 6D 61 6C 5F 77 61 74 63 68 66 61 63 65 normal_watchface
I managed to get that to work, I don’t recall if I did anything else tbh. I may have resaved it after opening it.