Why am i seeing 'error: request for member in something not a structure or union' in c++?

Example:

int x;
x.myValue = 10;

You're trying to access a member from something that's not a structure, class, or union.

Solution:

Ensure you're accessing members on valid data types like structures, classes, or unions.

struct MyStruct {
    int myValue;
};

MyStruct x;
x.myValue = 10;