compiler-warning-level-4-c4510.md

title	description	ms.date	f1_keywords	helpviewer_keywords	ms.assetid
Compiler Warning (level 4) C4510	Compiler warning C4510 description and solution.	09/22/2019	C4510	C4510	fd28d1d4-ad27-4dad-94c0-9dba46c93180

Compiler Warning (level 4) C4510

'class' : default constructor could not be generated

The compiler can't generate a default constructor for the specified class, which has no user-defined constructors. Objects of this type can't be created.

There are several situations that prevent the compiler from generating a default constructor, including:

• A const data member.

• A data member that's a reference.

To fix this issue, create a user-defined default constructor for the class that initializes these members.