You will be prompted an error message for mismatch, such as "ICM9950: Undefined Tivoli Storage Manager management class."
若匹配失败，将看到错误消息，如 “ICM9950:UndefinedTivoliStorageManagermanagementclass”。
The code parses and loads... but it still throws an error: NoMethodError: undefined method 'property' for CruiseShip:Class
再对上面的代码进行解析和加载，仍会抛出一个错误：NoMethodError:undefinedmethod “property”for CruiseShip:Class。 也就是说，在CruiseShip方法中没有property方法的定义。
If you try to use them, an XML processor will fail with an undefined entity error.
如果您想使用它们，XML处理器将失败并出现一个undefinedentity错误。
Undefined user accounting error!
未定义的用户帐户错误！
Trouble with a namespace in a header file, "undefined reference to" error?
在头文件中的命名空间的麻烦，”“错误未定义的引用？
The library is not required to check the value of the index. Using an index that is out of range is undefined and usually results in a serious run-time error.
标准库不要求检查索引值，所用索引的下标越界是没有定义的，这样往往会导致严重的运行时错误。
Similar to an undefined external error, except that the reference is via metadata.
与未定义的外部错误类似，不同的是引用是通过元数据。
Similar to an undefined external error, except that the reference is via metadata.
与未定义的外部错误类似，不同的是引用是通过元数据。
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