'@DefaultValue' not applicable to field怎么回事

这个错误提示意味着，在一个字段上使用了Java注解'@DefaultValue'，但是这个注解不适用于字段。

Java注解'@DefaultValue'是用于指定默认值的注解，但它只能应用于方法的参数上，而不是字段上。

解决这个问题的方法是，将注解'@DefaultValue'从字段上移除，并将其放置在方法参数上，以指定该方法参数的默认值。

相关问题

'@DefaultValue' not applicable to field

As an AI language model, I don't have enough context to determine the exact issue you are facing. However, here are some possible reasons why '@DefaultValue' is not applicable to a field:

1. '@DefaultValue' is not a valid annotation in the programming language or framework you are using. Make sure that you are using the correct syntax or check the documentation for the valid annotations.

2. The field you are trying to apply '@DefaultValue' to is not a property or a method. Annotations are usually applicable to methods or properties, so make sure that you are using it correctly.

3. The version of the programming language or framework you are using does not support '@DefaultValue'. Check the version of the language or framework and see if it supports this annotation.

4. You might have misspelled the annotation. Double-check the spelling and make sure that you are using the correct case.

If none of these solutions work, please provide more context, and I can try to assist you further.

ValueError: could not convert string to float: '91.67%'

Null is a value that represents the absence of a value or a lack of a value. It is often used to indicate that a variable or field has not been assigned a value or that a condition is not applicable or cannot be determined. In programming, null is often used as a placeholder or default value for variables or objects. In databases, null is used to represent missing or unknown data.