Re: "MDAC required" but it's installed...
From: DraguVaso (pietercoucke_at_hotmail.com)
Date: 06/01/04
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Date: Tue, 1 Jun 2004 14:13:48 +0200
Ok: some 'funny' results:
I installed JET 4.0 SP7: It worked once (ONCE!!), and afterwarths I got the
same error... :-(
Than I installed JET 4.0 SP8 and MDAC 2.8: It still doesn't work, but the
Error-message is different now:
Object reference not set to an instance of an object. at
System.Data.SqlClient.ConnectionPool.GetConnection(Boolean& isInTransaction)
at
System.Data.SqlClient.SqlConnectionPoolManager.GetPooledConnection(SqlConnec
tionString options, Boolean& isInTransaction)
at System.Data.SqlClient.SqlConnection.Open()
I'm still not able to find out what causes the problem and how to find a
resolution :-( Any help would really be appreciated!! The weird thing is
that it only happens on one pc (NT SP6a), on the others I tested it (a 2000
and a NT SP6A) it works fine...
Thanks in advance,
Pieter
"DraguVaso" <pietercoucke@hotmail.com> wrote in message
news:%23R5BWv6REHA.3476@tk2msftngp13.phx.gbl...
> Hi,
>
> I'm having this error in a VB.NET-application at the moment that I attempt
> to read data from an SQL Server:
>
>
> The .Net Data SQL Provider (System.Data.SqlClient) requires Microsoft Data
> Access Components(MDAC) version 2.6 or later. at
> System.Data.SqlClient.ConnectionPool.GetConnection(Boolean&
isInTransaction)
> at
>
System.Data.SqlClient.SqlConnectionPoolManager.GetPooledConnection(SqlConnec
> tionString options, Boolean& isInTransaction)
> at System.Data.SqlClient.SqlConnection.Open()
> Failed to Load Call Data Call Data Failure
>
>
> However the MDAC 2.7 is installed! And when I look into the registry it is
> indicated as installed too:
> HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\DataAccess\FullInstallVer =
> "2.71.9040.2"
>
> The .NET Framework is installed (1.1), and it is on a Windows NT (Sp 6a)
pc.
>
> Does anybody know about thisp roblem? And some solution? Could it be
because
> of some restictions (although I do have full Admin rights on the pc).
>
> I'ts really urgent and bothering me (I have to do a demo in 20 minutes,
> hehe).
>
> Thanks a lot in advance, any help, hints etc will be really appreciated!
>
> Pieter
>
>
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