Can't Upload & Post WebGL Build

So, I added a thumbnail and tags, and created a WebGL build of my 2D game. When you go to post in the community, the instructions tell you to upload a WebGL zip file, so I compressed the file and uploaded it (it didn't build as a .zip however) and it won't upload. Any advice out there?

 

Also having this problem.

Did you find any solution for this?

 

Update:
The .zip folder structure needs to have the

Build

folder,

TemplateData

folder and

index.html

as direct descendants like this:

- YourFolder.zip

    - Build/

    - TemplateData/

    - index.html

This is not allowed:

- YourFolder.zip

    - YourFolder/

        - Build/

        - TemplateData/

        - index.html

 

i got a template game. but i don't know to fix it, how do i fix it