Dapper Contrib not working correctly

I am using Dapper to work with my database. I am also using Dapper Contrib for annotations.

I want to be able to ignore a property in my class with

public type name { get; set; }

But it is still trying to write it to the database. I have no idea why it is not working. I am working with a team and when I pull from an update on the branch that code works, but when I create a property and add that annotation it doesn’t work. It is trying to write to the database and I get an invalid column name exception. Help is very appreciated. This is the error Message:

Microsoft.Data.SqlClient.SqlException (0x80131904): Invalid column name 'ColumnName'