CefSharp.WinForms.Example.vshost.exe has exited -1073741819 (0xc0000005) 'Access violation'。

程序“[523076] CefSharp.WinForms.Example.vshost.exe: 程序跟踪”已退出，返回值为 0 (0x0)。 程序“[523076] CefSharp.WinForms.Example.vshost.exe”已退出，返回值为 -1073741819 (0xc0000005) 'Access violation'。

when i run github cef's CefSharp.WinForms.Example Demo, i click item menu "Load Example Extension",the official extension demo "set_page_color" is running ok,but when i add my custom extension,click the item menu "Load Example Extension",then the Program go wrong,it seizing for several seconds,then broke down and exit for the above message.my custom extension works fine in Google Chrome browser,so what went wrong with this ?