[英]OleDbException (0x80004005): Oracle client and networking components were not found. How can I fix this?
I want to connect with oledb connection(msdaora.dll) in my webapplication to oracle.我想用我的 web 应用程序中的 oledb 连接(msdaora.dll)连接到 oracle。
I USE :我用 :
IIS 7.5
64 bit windows server 2008 r2 enterprise.
64 bit oracle 11g
32 bit oracle client
visual studio 2010
32bit msdaora.dll
my aplication is .aspx
and what is my error :我的错误是什么:
Server Error in '/PPIGanTT' Application.
--------------------------------------------------------------------------------
Oracle client and networking components were not found. These components are supplied by Oracle Corporation and are part of the Oracle Version 7.3.3 or later client software installation.
Provider is unable to function until these components are installed.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.Data.OleDb.OleDbException: Oracle client and networking components were not found. These components are supplied by Oracle Corporation and are part of the Oracle Version 7.3.3 or later client software installation.
Provider is unable to function until these components are installed.
Source Error:
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.
Stack Trace:
[OleDbException (0x80004005): Oracle client and networking components were not found. These components are supplied by Oracle Corporation and are part of the Oracle Version 7.3.3 or later client software installation.
Provider is unable to function until these components are installed.]
System.Data.OleDb.OleDbConnectionInternal..ctor(OleDbConnectionString constr, OleDbConnection connection) +351
System.Data.OleDb.OleDbConnectionFactory.CreateConnection(DbConnectionOptions options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningObject) +86
System.Data.ProviderBase.DbConnectionFactory.CreateNonPooledConnection(DbConnection owningConnection, DbConnectionPoolGroup poolGroup) +31
System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) +76
System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) +126
System.Data.OleDb.OleDbConnection.Open() +43
csOra.OpenCnn() +47
csOra..ctor(String sTnsName, String sUserId, String sPassword) +273
_Default.Page_Load(Object sender, EventArgs e) +8801
System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +14
System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +35
System.Web.UI.Control.OnLoad(EventArgs e) +91
System.Web.UI.Control.LoadRecursive() +74
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +2207
what i try before :我之前尝试过的:
1-- in iis, I change the enable32applications
to true
. 1 - 在 iis 中,我将enable32applications
更改为true
。
2-- change my connection type from oledb
to oracle.data.access
but it isnt work too. 2 - 将我的连接类型从oledb
为oracle.data.access
但它也不起作用。
3-- I want to find 64 bit msdaora.dll but i cant find it. 3-- 我想找到 64 位 msdaora.dll 但我找不到。
What can I do to fix this error?我能做些什么来解决这个错误? Thanks.谢谢。
I had a similar problem.我有一个类似的问题。 The underlying issue was that my platform target was Any CPU
.根本问题是我的平台目标是Any CPU
。 There were two solutions that worked for me:有两种解决方案对我有用:
I think IIS is deciding which (x86 or x64) msdora.dll it will use because of the Any CPU
platform target compilation.我认为 IIS 正在决定它将使用哪个(x86 或 x64)msdora.dll,因为Any CPU
平台目标编译。 You have to either take away IIS's choice or provide it all the answers.您必须要么取消 IIS 的选择,要么提供所有答案。
For me, it was a matter of switching items on the PATH environment variable.对我来说,这是在 PATH 环境变量上切换项目的问题。 ie I placed this : C:\Oracle\product\11.2\bin;即我放置了这个:C:\Oracle\product\11.2\bin; before this:C:\Oracle\product\12.1.0\dbhome_1\bin;在此之前:C:\Oracle\product\12.1.0\dbhome_1\bin; These path parts will be different for different companies.对于不同的公司,这些路径部分会有所不同。 There is then a requirement to remember to switch items on PATH back to use Oracle 12 again.然后需要记住将 PATH 上的项目切换回以再次使用 Oracle 12。
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