redo error cs1061 in this line: in csharp

CS1061 error occurs when a member or method is called on a variable that is not an instance of the defined type. To resolve this error, make sure that the variable being used is of the correct type, or cast it to the appropriate type to use the intended member or method. For example, if you have a variable "myObject" that you want to use a method called "myMethod", ensure that "myObject" is an instance of the class which contains the method "myMethod". Here's an example:

main.cs
//Assuming there's a method called myMethod in class MyClass
public class MyClass {
    public void myMethod(){
       //Some logic here
    }
}
//Creating an instance of MyClass
MyClass myObj = new MyClass();

//Calling myMethod by invoking it on myObj
myObj.myMethod();
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12 lines

If the error still persists, ensure that you have the required using directive or qualified name to reference the class correctly.