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If you encounter the error message "[500] Cannot find library file: System.Data.CData.OracleOCIw.dll," it typically indicates that your PATH environment variable is missing the necessary Oracle assemblies. This error occurs because the Oracle OCI driver relies on various other assemblies, and to load them successfully, you need to include the folder paths containing these assemblies in your PATH environment variable. 

Follow these steps to resolve the error: 

  1. Access Environmental Variables: 

  • Open your PC's Control Panel. 

  • Navigate to the "Environment Variables 

 

 

 

  1. Edit PATH Environment Variable: 

  • In the Environment Variables window, under the "System variables" section, locate and double-click on "Path."  

 

 

 

  1. Add 64-bit Application Location: 

  • If you are working with a 64-bit application, make sure to add the following location to your PATH environment variable: 

  • Example Location: C:\CData SSIS Components for Oracle 2022\lib\native\x64 

  1. Add 32-bit Application Location: 

  • If you are working with a 32-bit application, add the following location to your PATH environment variable instead: 

  • Example Location: C:\CData SSIS Components for Oracle 2022\lib\native\x86