Failed to convert property value of type 'java.lang.String' to required type 'java.time.LocalDateTime' for property 'createTime'

This error occurs when you are trying to convert a string value to a LocalDateTime object, but the conversion is not successful. This could happen if the string value is not in the correct format for a LocalDateTime object.

To fix this error, make sure that the string value you are trying to convert is in the correct format. The format for LocalDateTime objects is "yyyy-MM-ddTHH:mm:ss". For example, "2021-07-15T10:30:00" is a valid string value for a LocalDateTime object.

You can also use a custom date formatter to convert the string value to a LocalDateTime object. Here is an example:

DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd'T'HH:mm:ss");
LocalDateTime dateTime = LocalDateTime.parse(stringValue, formatter);

Make sure to replace "stringValue" with the actual string value you are trying to convert.