Why does 'error: function does not take x arguments' appear in c++?

Example:

void myFunction(int a) {}

int main() {
    myFunction(10, 20);
}

This error indicates that the number of arguments provided during the function call doesn't match its declaration.

Solution:

Match the function call to its declaration by providing the correct number of arguments.

void myFunction(int a) {}

int main() {
    myFunction(10);
}