Is it compulsory to present a constructor in base class with 0 argument

Question

public class myBaseClass { public myBaseClass() { code } public myBaseClass(int age) { code } } public class myDerivedClass : myBaseClass { public myDerivedClass() { code } public myDerivedClass(int age) { code } } myDerivedClass obj = new myDerivedClass(); This is original code. If I make comment to base class constructor without argument i.e. /*public myBaseClass() { code }*/ and now run the same code , error comes "No overload for method 'myBaseClass' takes '0' arguments" Why? Is it compulsory that if any constructor is present with one parameter in base class, then constructor with 0 arguments should also be present.