详细错误信息如下：ArgumentException: The Assembly Mono.WebBrowser is referenced by System.Windows.Forms ('Assets/Plugins/System.Windows.Forms.dll'). But the dll is not allowed to be included or could not be found.
unity项目要用到System.Windows.Forms.dll，在Unity编辑器里用着还好好的，但是一导出就给我报错。 只需要File->Build Settings->Player Settings...->Player->Other Settings。找到标黑的Configuration，将其中的Api compatibility Level*改成.NET 4.x即可
