Description: A compatibility error in GraphQL refers to a situation where two data types defined in a schema cannot be used together due to differences in their structure or definition. This type of error can arise, for example, when trying to combine an object type with a scalar type or when a specific type is expected in a query but a different type is received. The strongly typed nature of GraphQL means that each field and argument has a defined type, allowing developers to catch errors at compile time rather than at runtime. This enhances the robustness of applications but also means that any type mismatch can result in a compatibility error. These errors are crucial to resolve, as they can disrupt data flow and affect application functionality. Identifying and correcting these errors is essential to ensure that queries and mutations execute correctly and that data is handled efficiently.
