When adding Firebase and GoogleMobileAds into my project, I am getting a MissingMethodException

I am trying to have both Google Mobile Ads and Firebase in my project. When even adding them into a blank project together, upon building, I am getting this error causing the build to crash. MissingMethodException: UnityEditor.VersionControl.Task UnityEditor.VersionControl.Provider.Checkout(string,UnityEditor.VersionControl.CheckoutMode) Google.ProjectSettings.Set[T] (System.String name, T value) (at /Users/smiles/dev/src/unity-jar-resolver/source/VersionHandlerImpl/src/ProjectSettings.cs:119) Google.ProjectSettings+c__AnonStorey2.<>m__5 () (at /Users/smiles/dev/src/unity-jar-resolver/source/VersionHandlerImpl/src/ProjectSettings.cs:154) Google.ProjectSettings.SavePreferences (Google.ProjectSettings+SettingsSave saveLevel, System.Action saveToProject, System.Action saveToEditor) (at /Users/smiles/dev/src/unity-jar-resolver/source/VersionHandlerImpl/src/ProjectSettings.cs:135) Google.ProjectSettings.SetBool (System.String name, System.Boolean value) (at /Users/smiles/dev/src/unity-jar-resolver/source/VersionHandlerImpl/src/ProjectSettings.cs:153) GooglePlayServices.SettingsDialog.set_UseJetifier (System.Boolean value) (at /Users/smiles/dev/src/unity-jar-resolver/source/PlayServicesResolver/src/SettingsDialog.cs:225) GooglePlayServices.PlayServicesResolver.CanEnableJetifierOrPromptUser (System.String titlePrefix) (at /Users/smiles/dev/src/unity-jar-resolver/source/PlayServicesResolver/src/PlayServicesResolver.cs:2270) GooglePlayServices.PlayServicesResolver.ResolveUnsafe (System.Action`1[T] resolutionComplete, System.Boolean forceResolution, System.Boolean isAutoResolveJob, System.Boolean closeWindowOnCompletion) (at /Users/smiles/dev/src/unity-jar-resolver/source/PlayServicesResolver/src/PlayServicesResolver.cs:1610) GooglePlayServices.PlayServicesResolver+c__AnonStorey1E.<>m__40 () (at /Users/smiles/dev/src/unity-jar-resolver/source/PlayServicesResolver/src/PlayServicesResolver.cs:1579) GooglePlayServices.PlayServicesResolver.ExecuteNextResolveJob () (at /Users/smiles/dev/src/unity-jar-resolver/source/PlayServicesResolver/src/PlayServicesResolver.cs:1438) GooglePlayServices.PlayServicesResolver.ScheduleResolve (System.Boolean forceResolution, System.Boolean closeWindowOnCompletion, System.Action`1[T] resolutionCompleteWithResult, System.Boolean isAutoResolveJob) (at /Users/smiles/dev/src/unity-jar-resolver/source/PlayServicesResolver/src/PlayServicesResolver.cs:1592) GooglePlayServices.PlayServicesResolver.ExecuteMenuResolve (System.Boolean forceResolution) (at /Users/smiles/dev/src/unity-jar-resolver/source/PlayServicesResolver/src/PlayServicesResolver.cs:1799) GooglePlayServices.PlayServicesResolver.MenuForceResolve () (at /Users/smiles/dev/src/unity-jar-resolver/source/PlayServicesResolver/src/PlayServicesResolver.cs:1822)