The error indicates that you have tried to turn an object of one type into an object of a different type, and the compiler doesn't like it.
On the right, "help". This is of type const char[5] ; an array of five chars, that may not be changed. They are effectively in read-only memory.
On the left, a char-pointer. The compiler is not happy that you've got something that's const, and you're trying to cast it into something that isn't const. You can convert it to a pointer to a const char, though.
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#include <iostream>
#include <string>
int main()
{
constchar* name = "help";
}