no matching function for call to 'print(unsigned char [8])

This error message means that there is no function called "print" that can accept an array of unsigned char with a length of 8 as its argument.

To fix this error, you need to define or update the "print" function to accept an array of unsigned char with a length of 8 as its argument. Alternatively, you can convert the array to a different data type that is compatible with an existing print function.

相关问题

[Error] no matching function for call to

This error message typically occurs when the compiler cannot find a function that matches the arguments provided in the function call.

For example, if you have defined a function called `calculate` that takes two integer arguments `x` and `y`, but you call it with a string and a double, like `calculate("hello", 3.14)`, the compiler will not be able to find a matching function and will throw a "no matching function for call to" error.

To fix this error, you need to make sure that the arguments you are passing to the function match the function's parameter types. If the function requires integers, make sure you pass integers, and if it requires strings, make sure you pass strings.

no matching function for call to 'HardwareSerial::print(const char [45], uint8_t&, uint32_t&)'

这个错误提示表明在调用`print`函数时，传递的参数类型不匹配。根据错误信息，传递的参数是一个字符串常量和一个uint8_t类型的变量以及一个uint32_t类型的变量。但是，在`print`函数的重载列表中，没有找到接受这样三个参数的版本。所以需要检查调用`print`函数的代码段，确保传递的参数类型与函数期望的参数类型匹配。如果需要输出字符串和整数类型的变量，可以考虑使用格式化输出函数，如`printf`或`println`。