This problem will occur when running in 64 bit mode with the 32 bit Oracle client components install

Posted 2020-10-11

Attempt to load Oracle client libraries threw BadImageFormatException. This problem will occur when running in 64 bit mode with the 32 bit Oracle client components installed. ---> System.BadImageFormatException: 试图加载格式不正确的程序。 (Exception from HRESULT: 0x8007000B)
at System.Data.Common.UnsafeNativeMethods.OCILobCopy2(IntPtr svchp, IntPtr errhp, IntPtr dst_locp, IntPtr src_locp, UInt64 amount, UInt64 dst_offset, UInt64 src_offset)
at System.Data.OracleClient.OCI.DetermineClientVersion()

解决方案：

应用程序池 --》选择对应程序池 右键 高级--设置启用32位应用程序为True