Error occurs in Compilation

Can you post the part of the code that does not compile?

             if (www.error == null)
             {
                 this.mImage = www.texture;
             }
             else
             {
                 **mImage = Texture2D.blackTexture;**
                 Debug.Log("Error downloading image: " + www.error);
             }

             mImageLoading = false;
         }
         else
         {
             Debug.Log("No URL found.");
             **mImage = Texture2D.blackTexture;**
             mImageLoading = false;
         }
     }

 

Now Errors are :

1. Resolver version is now: 10101 UnityEngine.Debug:Log(Object) GooglePlayServices.PlayServicesResolver:RegisterResolver(IResolver) GooglePlayServices.ResolverVer1_1:.cctor() UnityEditor.EditorAssemblies:SetLoadedEditorAssemblies(Assembly[])

2 .url: https://kharma.unity3d.com/

3 . [Global Exception] [object Event] returnValue:true. timeStamp:1477405685470. eventPhase:3. target:[object HT$$anonymous$$LScriptElement]. defaultPrevented:false. srcElement:[object HT$$anonymous$$LScriptElement]. type:error. clipboardData:undefined. cancelable:false. currentTarget:[object DO$$anonymous$$Window]. bubbles:true. cancelBubble:false. notLogged

4 . []

1. Assets/GooglePlayGames/ISocialPlatform/PlayGamesUserProfile.cs(146,40): error CS0117: UnityEngine.Texture2D' does not contain a definition for blackTexture'

i want to intergrate facebook login , sharing , inviting and using the leaderboard in unity. and google play game integration.

What Unity Version are you using. From the docs Texture2D.blackTexture exists from Unity 5.4.X