Cannot resolve symbol 'DbType'

The error "Cannot resolve symbol 'DbType'" typically occurs when the compiler or IDE cannot find the definition for the symbol 'DbType'.

To resolve this issue, you can try the following steps:

1. Make sure you have imported the necessary namespace or package that contains the definition for 'DbType'. For example, if you are using ADO.NET in C#, you might need to add the following import statement at the top of your file:

   using System.Data;

2. Verify that you have referenced the correct assembly or library that contains the definition for 'DbType'. If you are using an external library, make sure it is properly installed and referenced in your project.

3. Check for any spelling or case sensitivity errors in your code. Ensure that 'DbType' is spelled correctly and matches the casing used in its definition.

If none of these steps resolve the issue, please provide more details about your code and the context in which the error occurs so that I can assist you further.