这类问题该如何解决呢？请大佬们解答。

这类问题该如何解决呢？请大佬们解答。

See the end of this message for details on invoking just-in-time (JIT) debugging instead of this dialog box.

************** Exception Text ************** System.NullReferenceException: Object reference not set to an instance of an object. at Frm_Eplan_EplanApi.MainForm.MainForm_Load(Object sender, EventArgs e) in D:\20200915\Eplan_EplanApi_Project\Frm_Eplan_EplanApi\MainForm.cs:line 35 at System.Windows.Forms.Form.OnLoad(EventArgs e) at System.Windows.Forms.Form.OnCreateControl() at System.Windows.Forms.Control.CreateControl(Boolean fIgnoreVisible) at System.Windows.Forms.Control.CreateControl() at System.Windows.Forms.Control.WmShowWindow(Message& m) at System.Windows.Forms.Control.WndProc(Message& m) at System.Windows.Forms.Form.WmShowWindow(Message& m) at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

************** Loaded Assemblies ************** mscorlib Assembly Version: 4.0.0.0 Win32 Version: 4.8.4084.0 built by: NET48REL1 CodeBase: file:///C:/Windows/Microsoft.NET/Framework64/v4.0.30319/mscorlib.dll

Eplan.EplApi.Communicationu Assembly Version: 1.0.0.0 Win32 Version: 2.7.3.11418 CodeBase: file:///C:/Program%20Files/EPLAN/Platform/2.7.3/Bin/Eplan.EplApi.Communicationu.erx

Eplan.EplApi.Baseu Assembly Version: 1.0.0.0 Win32 Version: 2.7.3.11418 CodeBase: file:///C:/Program%20Files/EPLAN/Platform/2.7.3/Bin/Eplan.EplApi.Baseu.DLL

XUXLoggerLogu Assembly Version: 1.0.0.0 Win32 Version: 2.7.3.11418 CodeBase: file:///C:/Program%20Files/EPLAN/Platform/2.7.3/Bin/XUXLoggerLogu.erx

EplanEplApiModuleu Assembly Version: 1.0.0.0 Win32 Version: 2.7.3.11418 CodeBase: file:///C:/Program%20Files/EPLAN/Platform/2.7.3/Bin/EplanEplApiModuleu.erx

WindowsBase Assembly Version: 4.0.0.0