install google play plugins in unity 2019.3,it's error for registry.Unable to connect "https://unityregistry-pa.googleapis.com"

Questions & Answers
1

I download the google plugins at Build your game in Unity  |  Android Developers, and install it in 2019.3.7version,and click Add Selected Registries then the editor has error

Failed to resolve packages: Registry configuration is invalid:
Scoped registry at position 1 is invalid:
Unable to connect “https://unityregistry-pa.googleapis.com”. No packages loaded.

A re-import of the project may be required to fix the issue or a manual modification of D:/projects/android19Test/Packages/manifest.json file.

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2

Well, after being stuck in this for a while I discobered two things:

  1. I’m an idiot. Here it says that you have two options. I tried the first one, and then I went to “Package Manager” searching for those Android Packages. But I found nothing, so I tried the second option witch is changing manually the manifest json adding that “scopedRegistries” thing.

So I added those lines in the above of manifest like they say in the guide, and this “Unable to connect” error appears. The thing I didn’t know is those lines were already added before by the option one. But BELOW of json. So I didn’t see that.

  1. I tried this in Unity 2019.3.10f1 and Google Packages doesn’t appeared to me. But I tried this again in 2019.3.15f1 and now I can see and install them perfectly.