Error: No valid adapters installed on the machine
For using WCF LOB adapter for Oracle ebusiness suite, we need to install the components in the following order. we also need 32-bit version of BizTalk adapter pack because VS 2008 works with 32-bit installation of BizTalk Adapter pack
Install 64-bit WCF LOB Adapter SDK SP2
Install 64-bit BizTalk Adapter Pack.
Install 32-bit BizTalk Adapter Pack.
Environment: windows server 2008 R2, BizTalk Server 2009, ORACLE Data Provider for .NET 220.127.116.11.20 (both x64 and x32)