Facebook SDK import error

Questions & Answers
1

I’m so tired of all these messed up Android libraries

When importing official .unitypackage in the EMPTY Android project I’m getting an error:

ArgumentNullException: Value cannot be null.
Parameter name: path
System.IO.Directory.CreateDirectory (System.String path) (at <f826c2584fc94ec19a48a6576640bdc5>:0)
GooglePlayServices.PlayServicesResolver.ResolveUnsafe (System.Action`1[T] resolutionComplete, System.Boolean forceResolution) (at <b9f185c2500349039a6d9277103bac8a>:0)
GooglePlayServices.PlayServicesResolver+<Resolve>c__AnonStorey11.<>m__19 () (at <b9f185c2500349039a6d9277103bac8a>:0)
GooglePlayServices.PlayServicesResolver.ExecuteNextResolveJob () (at <b9f185c2500349039a6d9277103bac8a>:0)
GooglePlayServices.PlayServicesResolver.Resolve (System.Action resolutionComplete, System.Boolean forceResolution, System.Action`1[T] resolutionCompleteWithResult) (at <b9f185c2500349039a6d9277103bac8a>:0)
GooglePlayServices.PlayServicesResolver.AutoResolve () (at <b9f185c2500349039a6d9277103bac8a>:0)
UnityEditor.EditorApplication.Internal_CallUpdateFunctions () (at C:/buildslave/unity/build/Editor/Mono/EditorApplication.cs:191)

Before this error comes the warning:

Resolving to Android package directory instead of the requested target directory Assets/Plugins/Android
Is  in a different case to Assets/Plugins/Android ?

UnityEngine.Debug:LogWarning(Object)
Google.Logger:Log(String, LogLevel)
GooglePlayServices.PlayServicesResolver:Log(String, LogLevel)
GooglePlayServices.SettingsDialog:ValidatePackageDir(String)
GooglePlayServices.SettingsDialog:get_PackageDir()
GooglePlayServices.PlayServicesResolver:ResolveUnsafe(Action`1, Boolean)
GooglePlayServices.<Resolve>c__AnonStorey11:<>m__19()
GooglePlayServices.PlayServicesResolver:ExecuteNextResolveJob()
GooglePlayServices.PlayServicesResolver:Resolve(Action, Boolean, Action`1)
GooglePlayServices.PlayServicesResolver:AutoResolve()
UnityEditor.EditorApplication:Internal_CallUpdateFunctions()

It also doesn’t build an .apk.

When platform is set to PC, everything is importing fine.

I’m using unity 2018.2 and the latest Facebook SDK 7.13.0

What’s that all about? How can I fix that?

2

Ok I did it somehow

Not sure what helped - either installing the Facebook Gameroom from the unity installer (most likely) or updating Play Services Resolver

For the last option, you should completely remove PlayServicesResolver folder in your Assets, download the .unitypackage file from GitHub (GitHub - googlesamples/unity-jar-resolver: Unity plugin which resolves Android & iOS dependencies and performs version management) and install it, then in menu Assets->Play Services Resolver->Android Resolver click Force Resolve