Hey guys,
I'm brand new to PlayMaker as well and having the same issue. On Windows (PC), Unity v2017.1.1f3 personal, latest PlayMaker (can't read version in about; that screen shows up blank/black/empty).
I just installed PlayMaker today.
I am getting tons of Unity error spam on PlayMaker, all the same error; not sure who 'Alex' is, so maybe there's a wrong file path somewhere?... here's the details of the error:
MissingMethodException: Method not found: 'UnityEngine.Texture2D.LoadImage'.
HutongGames.PlayMakerEditor.FsmEditorStyles.InitCommon () (at c:/Users/Alex/Documents/Unity/Playmaker/Projects/Playmaker.source.unity/Assets/PlayMaker/Editor/Classes/FsmEditorStyles.cs:302)
HutongGames.PlayMakerEditor.FsmEditorStyles.Init () (at c:/Users/Alex/Documents/Unity/Playmaker/Projects/Playmaker.source.unity/Assets/PlayMaker/Editor/Classes/FsmEditorStyles.cs:275)
HutongGames.PlayMakerEditor.FsmEditor.OnGUI () (at c:/Users/Alex/Documents/Unity/Playmaker/Projects/Playmaker.source.unity/Assets/PlayMaker/Editor/Classes/FsmEditor.cs:529)
HutongGames.PlayMakerEditor.FsmEditorWindow.DoGUI () (at Assets/PlayMaker/Editor/FsmEditorWindow.cs:95)
HutongGames.PlayMakerEditor.BaseEditorWindow.OnGUI () (at c:/Users/Alex/Documents/Unity/Playmaker/Projects/Playmaker.source.unity/Assets/PlayMaker/Editor/Classes/BaseEditorWindow.cs:72)
System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) (at /Users/builduser/buildslave/mono/build/mcs/class/corlib/System.Reflection/MonoMethod.cs:222)
Rethrow as TargetInvocationException: Exception has been thrown by the target of an invocation.
System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) (at /Users/builduser/buildslave/mono/build/mcs/class/corlib/System.Reflection/MonoMethod.cs:232)
System.Reflection.MethodBase.Invoke (System.Object obj, System.Object[] parameters) (at /Users/builduser/buildslave/mono/build/mcs/class/corlib/System.Reflection/MethodBase.cs:115)
UnityEditor.HostView.Invoke (System.String methodName, System.Object obj) (at C:/buildslave/unity/build/Editor/Mono/HostView.cs:272)
UnityEditor.HostView.Invoke (System.String methodName) (at C:/buildslave/unity/build/Editor/Mono/HostView.cs:265)
UnityEditor.HostView.InvokeOnGUI (Rect onGUIPosition) (at C:/buildslave/unity/build/Editor/Mono/HostView.cs:232)
UnityEngine.GUIUtility:ProcessEvent(Int32, IntPtr)
Thanks!