unity2018.1.9导出PC平台时报三个错误

第一个
ArgumentException: The Assembly UnityEngine is referenced by UnityEngine.UI ('E:/unity/2018.1.9f2/Editor/Data/UnityExtensions/Unity/GUISystem/Standalone/UnityEngine.UI.dll'). But the dll is not allowed to be included or could not be found.
UnityEditor.AssemblyHelper.AddReferencedAssembliesRecurse (System.String assemblyPath, System.Collections.Generic.List1 alreadyFoundAssemblies, System.String[] allAssemblyPaths, System.String[] foldersToSearch, System.Collections.Generic.Dictionary2 cache, BuildTarget target) (at D:/unity/Editor/Mono/AssemblyHelper.cs:154)
UnityEditor.AssemblyHelper.FindAssembliesReferencedBy (System.String[] paths, System.String[] foldersToSearch, BuildTarget target) (at D:/unity/Editor/Mono/AssemblyHelper.cs:194)
UnityEngine.GUIUtility:ProcessEvent(Int32, IntPtr)
第二个
Build completed with a result of 'Failed'
UnityEngine.GUIUtility:ProcessEvent(Int32, IntPtr)
第三个
UnityEditor.BuildPlayerWindow+BuildMethodException: 3 errors
at UnityEditor.BuildPlayerWindow+DefaultBuildMethods.BuildPlayer (BuildPlayerOptions options) [0x0021f] in D:\unity\Editor\Mono\BuildPlayerWindowBuildMethods.cs:182
at UnityEditor.BuildPlayerWindow.CallBuildMethods (Boolean askForBuildLocation, BuildOptions defaultBuildOptions) [0x00065] in D:\unity\Editor\Mono\BuildPlayerWindowBuildMethods.cs:89
UnityEngine.GUIUtility:ProcessEvent(Int32, IntPtr)

后面的问题是由第一个产生的，不用管解决第一个就可以了。

报错意思是说你的D:/unity/Editor/Mono/AssemblyHelper.cs:154代码参数传的有问题，修改一下就可以了