Update

Assets/Invector-3rdPersonController/Melee Combat/Scripts/Editor/MeleeDefineSymbols.cs

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+
+using System.Collections.Generic;
+
+namespace Invector.DefineSymbolsManager
+{
+    public class MeleeDefineSymbols : InvectorDefineSymbols
+    {
+        public override List<string> GetSymbols
+        {
+            get
+            {
+               return new List<string>() { "INVECTOR_MELEE" };
+            }
+        }
+    }
+}

Assets/Invector-3rdPersonController/Melee Combat/Scripts/Editor/MeleeDefineSymbols.cs.meta

@@ -0,0 +1,12 @@
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+timeCreated: 1529361259
+licenseType: Store
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+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
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