Asp.net - Fix Func Is Ambiguous In The Namespace 'system' Compiler Error

Dec 8, 2011

I have a method that looks like this :

Function ExecuteAndLogError(Of TResult)(ByVal code As Func(Of TResult), _ByVal sql As String, _Optional ByVal parameters As SqlParameterCollection = Nothing) As TResult End Function

I am getting this compiler error : 'Func' is ambiguous in the namespace 'System'.

[Code]...

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EventArgs Is Ambiguous In Namespace System

May 10, 2011

While I am trying to load my project, I've got some errors like the following[code]...

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.net - 'TcpListener' Is Ambiguous In The Namespace 'System.Net.Sockets'?

Feb 21, 2012

I got 11 errors in my VB program. All the errors look similar: X is ambiguous in the namespace Y

Error line: Imports System.Net.Sockets
Imports System.Text
Module Module1
Sub Main()

Dim serverSocket As New TcpListener(System.Net.IPAddress.Parse("192.168.1.100"), 8888)

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'SqlConnection' Is Ambiguous In The Namespace 'System.Data.SqlClient'?

Mar 10, 2009

I have imports namespace System.Data.SqlClient.I just create object of SqlConnection,But error is there-
'SqlConnection' is ambiguous in the namespace 'System.Data.SqlClient'.

[Code]...

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ScriptServiceAttribute' Is Ambiguous In The Namespace 'System.Web.Script.Services'

May 16, 2011

I'm currently working on an existing ASP.NET project. At the moment I have to integrate
a new componant so for that purpose I had to change the framework target from 2.0 to 3.5. After regenerating the solution, I'm now dealing with a strange issue.

Here's the code :

<WebService(Namespace:="http://tempuri.org/")> _
<WebServiceBinding(ConformsTo:=WsiProfiles.BasicProfile1_1)> _
<Global.Microsoft.VisualBasic.CompilerServices.DesignerGenerated()> _
<System.Web.Script.Services.ScriptService()> _

And the last line returns that error 'ScriptServiceAttribute' is ambiguous in the namespace 'System.Web.Script.Services'I have definitely no clue what's going on in my code ?! Is it an internal error of the ScriptService constructor ?

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VS 2005 'SqlConnection' Is Ambiguous In The Namespace 'System.Data.SqlClient'?

Jan 23, 2011

I am creating class libraries in my project so that I can update code without having to update the whole app.I created a class library project and added some code to it. I also added a reference to System.Data.SqlClient and also imported it into the class file.I am getting an error and I have never seen it before. Been looking online and not able to find an answer yet.

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VB Compiler Is Unable To Recover From The Error: System Error &Hc0000005& (VB Internal Compiler Error)

Jul 1, 2011

This error first appear to occur randomly. Steps to recreate:Open Visual Studio and load a solution (some files automatically opened) - this is when the problem occurs Close all open files Restart visual studio and load solution (no issues)Open Exactly the same files again, restart visual studio and load solution so files open automatically (problem occurs!)

However, when trying to narrow it down to a single file (that is automatically opened when the solution is loaded), I couldn't reproduce the problem. Now with all the files open again the problem doesn't occur!!! So it looks like it is fixed - though this happened before and eventually the issue came back.

I think it is to do with one of the user controls with DevExpress controls on it - when the error occurs, the designer displays the error. Though I can't reproduce it at the moment to confirm that.

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Error 103 'Application' Is Ambiguous In The Namespace

Jan 3, 2011

Using Visual Studio 8. On old computer, my application works. When installed on a new computer I get an error message:

Line of code causing error:
Dim WordApp
As
New Microsoft.Office.Interop.Word.Application

Error message: Error 103 'Application' is ambiguous in the namespace

Both computers reference:

C:WindowsassemblyGACMicrosoft.Office.Interop.Outlook12.0.0.0__71e9bce111e9429cMicrosoft.Office.Interop.Outlook.dll Old computer is 32 bit XP. New computer is 64 bit Windows 7.

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Call Overridden ClassA.func() From GrandChildClassC.func() Without Invoking ChildClassB.func()?

Jan 26, 2010

[Code]...

I know how to do the code shown in ClassA and ChildClassB, but how do I go about coding the example in GrandChildClassC, which needs to not do the stuff that ChildClassB does in this function, but still do what Class does.

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Error "PrintForm Is Ambiguous In The Namespace 'Microsoft.VisualBasic.PowerPacks.Printing'"

Aug 31, 2011

i used printForm to print forms, but when i installed the powerpack 3.0 it doesn't work anymore.i am always getting an error "PrintForm is ambiguous in the namespace 'Microsoft.VisualBasic.PowerPacks.Printing'" i am using visual studio 2008 professional edition.

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Getting The Error "Application" Is Ambiguous In The Namespace 'microsoft.office.interop.excel'?

Sep 1, 2010

I have a project which opens a simple Excel file and populates it. It was working fine until this morning, when it has suddenly started giving me the error above: 'Application' is ambiguous in the namespace 'Microsoft.Office.Interop.Excel'.I haven't changed any project references, or anything within the file itself. The references include Microsoft.Office.Interop.Excel. The imports statement is there: importsMicrosoft.Office.InteropThe object declaration is also complete: Dim xl AsMicrosoft.Office.Interop.Excel.Application which is the line that's giving me the error!

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MS Updates And Ambiguous In Namespace 'asp'?

Jun 1, 2010

We have a VB web application that for some reason breaks when some clients run Windows Updates. To resolve the issue we have to force the application to recompile on the servers where the application is installed. In some instances we must do this multiple times and/or restart IIS as well to resolve the issue.

This didn't start happening until October of 2009, and then suddenly it happened all the time... but not for every client, and not with every update. It continues to happen and we have been at a loss to understand why. Is anyone else experiencing this issue or found a way around it? If there is something in our code that we can alter to keep this from happening I would love to know about it, as we spend time and resources troubleshooting and resolving an issue that doesn't exist until a Windows update runs and our application becomes un-usable until resolved.

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'Recordset' Is Ambiguous In The Namespace 'ADODB'?

Jun 17, 2011

I encounter this error as mention in the subject line. I just change from windows XP 32 bits to windows 7 64 bits, and the following code were working fine in windows XP, but in windows 7 I get ambiguous namespace for all the DIM cnn As New ADODB.Connection and DIM rst As New ADODB.Recordset.I Have no idea what is going on.However, the exe that is created from my old XP runs fine on both XP and Windows 7 32 bits but not the Win7 64 bits.

Public Sub mStartConnection()
Dim initPath As String
Dim File_Reader As StreamReader
Try

[code].....

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Forms :: 'filename' Is Ambiguous In Namespace

Oct 26, 2011

I'm having problems with this error [code] I already imported the sqlserver references but it still don't work.

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Smtp' Is Ambiguous In The Namespace 'MailBee.SmtpMail'?

Jun 14, 2012

We are using MailBee for the first time but get this error:

'Smtp' is ambiguous in the namespace 'MailBee.SmtpMail'.

What does it mean and how can we create the objSMTP object?

Here is what the complete coding looks like:

Imports MailBee
Imports MailBee.DnsMX
Imports MailBee.Mime
Imports MailBee.SmtpMail
Imports MailBee.Pop3Mail

[Code]...

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VS 2008 <'HTMLDocument'> Is Ambiguous In The Namespace <'mshtml'>

Jul 30, 2009

This line is throwing the error; Public WithEvents CurrentDoc As mshtml.HTMLDocument
Researching the error tells me that HTMLDocument isn't fully qualified. Isn't this fully qualified? If I change it to Microsoft.mshtml.HTMLDocument then it says it's not defined.

[Code]...

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Error: "AxMSFlexGrid" Is Ambiguous In Namespace "AxMSFLexGridLib"?

Mar 26, 2010

I have this application where I am getting this error. What can I do to resolve this?

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Application' Is Ambiguous In The Namespace 'Microsoft.Office.Interop.Excel

Mar 9, 2010

Application' is ambiguous in the namespace 'Microsoft.Office.Interop.Excel

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Error6 'Application' Is Ambiguous In The Namespace 'Microsoft.Office.Interop.Word'

Dec 9, 2009

It says .Application ambiguous Error6'Application' is ambiguous in the namespace 'Microsoft.Office.Interop.Word'.

Imports Word = Microsoft.Office.Interop.Word
oWord = CType(CreateObject("Word.Application"), Word.Application)
oDoc = oWord.Documents.Add()

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VB 2010 Express Compiler Error "Class 'CLSID_CorSymWriter' Could Not Be Created: System Error &H80040154&"

Jun 12, 2010

I get the following error when trying to compile the simplest prpgram. Error 1 Class 'CLSID_CorSymWriter' could not be created: System Error &H80040154& After looking at other stuff on the net I removed VB 2010, VB 2008, any C or C++ runtimes and any .NET Framework programs I could find, and then re-installed VB 2010, but the problem still persists.

[Code]...

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.net - C# : How Much Memory Does A System.Func Holds

Apr 23, 2011

exactly how much memory does a System.Func holds?Is there any difference if the System.Func is 1 line or 1000 lines?

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'Security' Is Ambiguous, Imported From The Namespaces Or Types 'System, System.Net'?

Nov 4, 2010

im making a md5 cryptology for a program, it work in everyform exept this one..

Imports System.Net.Mail
Imports System.Net.FtpWebRequest
Imports System.Net

[code]....

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Compiler - External-only Properties Or Methods - From The Internal Namespace?

Nov 30, 2009

Is there a simple way in vb.net to mask a public property or method from the internal namespace? It would be helpful as a refactoring tool to isolate internal dependencies and perhaps to enforce a non-recursion policy for external services.

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Imports System.Xml - Error Namespace Or Type Doesn't Contain Any Public Members Or Cannot Be Found?

May 2, 2010

I'm setting up a simple XML read-write demo (VB Winforms) in Visual Studio 2010 Premium (tried in both the RC and RTM) and added:

Imports System.Xml

Result: Error Namespace or type doesn't contain any public members or cannot be found...

VS 2008 equivalent example recognizes the Imports statement fine.I know this has to be me, but I'm stumped.

Note: I tried this with the app targeting both .Net 3.5 and 4.0. Same result.

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Nested Function Does Not Have The Same Signature As Delegate 'System.Func(Of Object)'

Apr 5, 2012

I have a section of code that deletes a lot of columns, one at at time, based on conditions that arise. Currently it does this:

objrpt.objXLSheet.Columns(col) _
.EntireColumn.Delete(Excel.XlDeleteShiftDirection.xlShiftToLeft)

There are so many of these, that I'm getting tired of looking at these lines so I want to curry the references to the Excel stuff.I tried:

Dim DelCol As Func(Of Integer) = Function(col As Integer) _
objrpt.objXLSheet.Columns(col) _
.EntireColumn.Delete(Excel.XlDeleteShiftDirection.xlShiftToLeft)

but that won't compile, giving me the error: "Nested function does not have the same signature as delegate 'System.Func(Of Integer)'. Ah forget it. I see that I'm trying to call a method from a function. I guess that won't work.Wait, I'm now trying it another way. I first defined a function:

Private Function DeleteColumn(ByRef objrpt As ExcelReport, ByVal col As Integer) As Object
DeleteColumn = Nothing
Dim objrng As Excel.Range

[code]....

Now the error message is a little different:

"Nested function does not have the same signature as delegate 'System.Func(Of Object)'.

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Value Of Type 'System.Func(Of String, String)' Cannot Be Converted To 'System.Convert

Feb 17, 2011

Value of type 'System.Func(Of String, String)' cannot be converted to 'System.Converter(Of String, String)

Why? They are both effectively a function pointer (or delegate?) to a function that accept a string and return a string.

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Type Or Namespace Name 'Messaging' Does Not Exist In Namespace 'System

Apr 10, 2010

The type or namespace name 'Messaging' does not exist in the namespace 'System' (are you missing an assembly reference?)

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.net - Application "AppName" Is Inventing The Lower-case Namespace "appname", Causing The "AppName" Namespace To Become Ambiguous

Feb 3, 2011

As I say, I've got an application which I'll refer to as "AppName" (note the upper case 'A' and 'N') which, for example, attempts to reference "My.Application.Info.ProductName". Adding a breakpoint and putting a QuickWatch on that call shows the error:

[Code]...

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.net - "...ambiguous In The Namespace..." Errors When Compiling Code

Aug 4, 2010

I'm getting a ton of errors like this when attempting to build an empty VB.NET project: 'GenerateCodeAttribute' is ambiguous in the namespace 'System.CodeDom.Compiler' Is this some problem with my .NET installation?

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System Namespace Conflict With Sibling Namespace

Nov 16, 2011

This class is located in the namespace Acme.Infrastructure.Interface.A class with the same name EventArgs exists in the System namespace.In another project in my solution I have a class Acme.BusinessModules.MyModule.MyClass.When attempting to use the EventArgs class I have to fully qualify the class name or the compiler thinks I am using the System.EventArgs class.My understanding of namespace resolution was that the compiler would first look for the class in the current namespace, and then its parents. It seems that the compiler checks in System before it checks in sibling namespaces. Is it correct that System is checked before the sibling? Or is this behaviour caused by other issues (Imports order?)?

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