(Solved) Error: Could not load file or assembly 'Oracle.DataAccess' or one of its dependencies. An attempt was made to load a program with an incorrect format.

When you publish a ASP.NET application in IIS you may getting this error.

"Could not load file or assembly 'Oracle.DataAccess' or one of its dependencies. An attempt was made to load a program with an incorrect format." To Solve this,

• Go to IIS
• Double click the Application Pool
• Right click the application pool you are using for your application
• Select Advanced Settings
• There you can see Enable 32 bit Application set to False
• Change that to True 
• It will work now