Emp.html:226 Uncaught (in promise) TypeError: Cannot read properties of undefined (reading 'className')
时间: 2023-11-02 19:04:10 浏览: 51
根据提供的引用内容,错误信息 "Emp.html:226 Uncaught (in promise) TypeError: Cannot read properties of undefined (reading 'className')" 表明在代码中存在一个无法读取未定义属性('className')的错误。
相关问题
TypeError: Cannot read properties of null(reading 'appendChild') at Emp.html:141:17
这个错误通常发生在尝试访问一个 null 值的属性时。在你的代码中,第 141 行的 'appendChild' 属性无法被应用于 null 对象。这可能是因为你没有正确地获取或初始化相关的 DOM 元素。请确保在尝试使用 'appendChild' 之前,你已经正确地获取了父节点元素,并且它不是 null。
C:\Users\lj\Desktop\课上\emp.o emp.c:(.data+0x0): multiple definition of `test'
This error message indicates that the symbol "test" is defined multiple times in the object files "emp.o" and "emp.c". This can happen if you have included the same source file in multiple places or if you have defined the same variable or function in multiple files. To resolve this error, you should ensure that each symbol is defined only once in your program.