What are the reasons for failing to deserialize JSON?

There are several reasons that may cause the failure of JSON deserialization.

1. Incorrect JSON data format: JSON data must strictly adhere to format requirements, errors such as missing quotes or mismatched brackets will cause deserialization to fail.
2. The JSON data types do not match: The target object being deserialized does not match the type of the JSON data, such as converting an array or object to a string, or converting a string to an integer.
3. If the JSON data is missing the necessary attributes, deserialization will fail.
4. Unknown properties are present in the JSON data: deserialization will fail if the JSON data contains properties that are not included in the target object.
5. The target object for deserialization does not have a default constructor: Some deserialization libraries require the target object to have a default constructor, and if it does not, it will result in deserialization failure.
6. If the field names in JSON data do not match those in the target object, deserialization will fail.
7. If special characters are included in the JSON data, such as control characters or invisible characters, deserialization will fail.
8. Version compatibility issue with deserialization libraries: Some deserialization libraries may have version compatibility problems, and deserialization will fail if the library version being used is not compatible with the JSON data.

The reasons for common JSON deserialization failures vary depending on the deserialization library and specific JSON data being used.