How to solve problems in the Unity compiler?

Question

C++ / C#

There were 3 compiler errors
1 Error CS1503 Argument "#1" cannot convert 'object' expression type 'UnityEngine.Vector3'
2 Error CS0119 Epression denotes a 'type', where a 'variable', 'value' or 'method group' was expected
3 Error CS1502 The best overloaded method match for 'UnityEngine.RigidBody.AddForce(UnityEngine.Vector3)' has become invalid argument

Answer 1

On line 21 rb.AddForce (movement); obviously should be