我无法弄清楚这里的问题是什么.我从头开始项目,去调试,并收到错误：
System.InvalidOperationException was unhandled Message=An error
occurred creating the form. See Exception.InnerException for details.
The error is: Object reference not set to an instance of an object.
我不明白为什么在自动生成的文件中发生此错误.以下是完整的代码：
'------------------------------------------------------------------------------
' <auto-generated>
' This code was generated by a tool.
' Runtime Version:4.0.30319.269
'
' Changes to this file may cause incorrect behavior and will be lost if
' the code is regenerated.
' </auto-generated>
'------------------------------------------------------------------------------
Option Strict On
Option Explicit On
Namespace My
'NOTE: This file is auto-generated; do not modify it directly. To make changes,' or if you encounter build errors in this file,go to the Project Designer
' (go to Project Properties or double-click the My Project node in
' Solution Explorer),and make changes on the Application tab.
'
Partial Friend Class MyApplication
<Global.System.Diagnostics.DebuggerStepThroughAttribute()> _
Public Sub New()
MyBase.New(Global.Microsoft.VisualBasic.ApplicationServices.AuthenticationMode.Windows)
Me.IsSingleInstance = false
Me.EnableVisualStyles = true
Me.SaveMySettingsOnExit = true
Me.ShutDownStyle = Global.Microsoft.VisualBasic.ApplicationServices.ShutdownMode.AfterMainFormCloses
End Sub
<Global.System.Diagnostics.DebuggerStepThroughAttribute()> _
Protected Overrides Sub OnCreateMainForm()
Me.MainForm = Global.AccountAndClientFull.frmMain 'HERE IS WHERE THE ERROR OCCURS
End Sub
End Class
End Namespace
错误发生在：
Me.MainForm = Global.AccountAndClientFull.frmMain
有什么建议？我无法弄清楚需要在项目属性的应用程序选项卡中进行哪些更改.
解决方法
确保你有一个名为frmMain的Form Class,注意不是文件名而是Class Name.
也许您已将表单文件名重命名为frmMain.vb,但在文件的代码中,类的签名仍然不同.
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