Error: Retrieving the COM class....80040154

[mp33487]

I get the following error when I try to open the default twain source. I didn't get it when debuging in VB.NET and my scanner ran just fine. I only get it when I publish and install the applciation. The GDPicture.NET.dll is in the directory that was installed. I don't get any errors creating the viewer or imaging objects. Does the GdPicture.NET.twain.gdtwain.dll need to be in the installed directory as well? I thought this may have been a registration issue but if I copy the file over to the install dir and try to register it gives me an error trying to register the file. Any ideas? I need this running ASAP as I'm behind schedule. Thanks in advance.

System.Runtime.InteropServices.COMException (0x80040154): Retrieving the COM class
factory for component with CLSID {11E7DA45-B56D-4078-89F6-D3D651EC4CD6} failed due
to the following error: 80040154

[Loïc]

Hi,

what is the line of code which generate this error ?
What is your environment of development ?
What edition are you using ?

Does the GdPicture.NET.twain.gdtwain.dll need to be in the installed directory as well ?

Yes.

Kind regards,

Loïc

[mp33487]

VS 2008 (vb). We the get error trying to scan when we install the app. It doesn't error in the dev enviroment. We also altered the app to compile for 32bit only and still get the error. Any ideas? We created a test app that only scans and for some reason that worked w/o error. We're pretty confused and are going to loose this customer.

[Loïc]

Hi,

Your problem come probably from an architectural issue of your main application.

unfortunately, we are not able to reproduce your problem. If you are able to reproduce it within a simple application we will have a look on it ASAP.

With best regards,

Loïc

[thelinker]

Hello
I'm not going to open a new thread, because I have the EXACT SAME error.
ON win 7 32 /64 : no error, but on a brand new installed xp pro sp3 I get the same error.
It has nothing to do with main architectural of the app : it's just a simple form that is a copy of your " wia scan " project under visual studio 2010 made on C# .
the error of the previous guy is fine but incomplete : the full error is : error 80040154 Class not registered
************* Exception Text **************
System.Runtime.InteropServices.COMException (0x80040154): Retrieving the COM class factory for component with CLSID {850D1D11-70F3-4BE5-9A11-77AA6B2BB201} failed due to the following error: 80040154 Class not registered (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG)).
at System.RuntimeTypeHandle.CreateInstance(RuntimeType type, Boolean publicOnly, Boolean noCheck, Boolean& canBeCached, RuntimeMethodHandleInternal& ctor, Boolean& bNeedSecurityCheck)
at System.RuntimeType.CreateInstanceSlow(Boolean publicOnly, Boolean skipCheckThis, Boolean fillCache)
at System.RuntimeType.CreateInstanceDefaultCtor(Boolean publicOnly, Boolean skipVisibilityChecks, Boolean skipCheckThis, Boolean fillCache)
at System.Activator.CreateInstance(Type type, Boolean nonPublic)
at gdpicture_᜙..ctor()
at GdPicture.GdPictureImaging.gdpicture_ᜁ()
at GdPicture.GdPictureImaging.WiaGetSourceCount()
at WindowsFormsApplication1.Form2.DisplayWIADevices() in C:\Documents and Settings\Administrator\my documents\visual studio 2010\Projects\WindowsFormsApplication55\WindowsFormsApplication55\Form2.cs:line 49
at WindowsFormsApplication1.Form2.Form2_Load(Object eventSender, EventArgs eventArgs) in C:\Documents and Settings\Administrator\my documents\visual studio 2010\Projects\WindowsFormsApplication55\WindowsFormsApplication55\Form2.cs:line 43
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.ScrollableControl.WndProc(Message& m)
at System.Windows.Forms.Form.WmShowWindow(Message& m)
at System.Windows.Forms.Form.WndProc(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)


actually it says that this code :
private void Form2_Load(System.Object eventSender, System.EventArgs eventArgs)
{
GdPicture.LicenseManager oLicenceManager = new GdPicture.LicenseManager();
oLicenceManager.RegisterKEY("-mykey-");
DisplayWIADevices();
}
the class " licence manager" makes this error. Now when this error pops up I click " continue" and it works. My guess is that some package is missing on a brand new xp pro install, as it works on my xp dev box, and 7 64 dev box, and 7 32 user box.
any idea?
thank you.

[Loïc]

Hello,

Your error have nothing to do with the previous one...

Have you redistributed and registered the wiaaut.dll library as explained in the reference guide ?

Kind regards,

Loïc