Why does my editor throw an error using firebase plugin?

I have the most recent unity and the most recent firebase plugin. I want to use it for push notifications and analytics. I have downloaded the google-services.json file. and my project only contains the firebase plugin assets. When I switch my project to an Android project, it throws this error.

 ArgumentNullException: Argument cannot be null.
 Parameter name: collection
 System.Collections.Generic.List`1[Google.JarResolver.Dependency].CheckCollection (IEnumerable`1 collection) (at /Users/builduser/buildslave/mono/build/mcs/class/corlib/System.Collections.Generic/List.cs:435)
 System.Collections.Generic.List`1[Google.JarResolver.Dependency]..ctor (IEnumerable`1 collection) (at /Users/builduser/buildslave/mono/build/mcs/class/corlib/System.Collections.Generic/List.cs:58)
 Google.JarResolver.ResolutionException..ctor (System.String msg, IEnumerable`1 missingDependencies)
 Google.JarResolver.PlayServicesSupport.FindCandidate (Google.JarResolver.Dependency dep, System.Collections.Generic.List`1 repoPaths, Boolean logMissing)
 Google.JarResolver.PlayServicesSupport.LoadDependencies (System.Collections.Generic.Dictionary`2 dependencies, System.Collections.Generic.List`1 repoPaths, Boolean keepMissing, Boolean findCandidates)
 Google.JarResolver.PlayServicesSupport.LoadDependencies (Boolean allClients, Boolean keepMissing, Boolean findCandidates)
 Google.JarResolver.PlayServicesSupport.FindMissingDependencyPaths (System.String destinationDirectory, System.Collections.Generic.Dictionary`2& dependencyPaths, Google.JarResolver.ExplodeAar explodeAar)
 GooglePlayServices.ResolverVer1_1.DoResolution (Google.JarResolver.PlayServicesSupport svcSupport, System.String destinationDirectory, Google.JarResolver.OverwriteConfirmation handleOverwriteConfirmation, System.Action resolutionComplete)
 GooglePlayServices.PlayServicesResolver.Resolve (System.Action resolutionComplete)
 GooglePlayServices.PlayServicesResolver.AutoResolve ()
 UnityEditor.EditorApplication.Internal_CallUpdateFunctions () (at /Users/builduser/buildslave/unity/build/Editor/Mono/EditorApplication.cs:109)
 

Has anyone seen this or know what im doing wrong. please help and thanks!!!

-Me