pointers - Invalid type argument of -> C structs

Question

I am trying to access items in an array of structs and print the structs fields as follows

printList(Album *a, int numOfStructs)
{
    int i;
    int j;

    for(i = 0; i < numOfStructs; i++)
    {
         printf("number%d
:", i+1);
         printf("%s", a[i]->field2);
         printf("%s", a[i]->field2);
         printf("%d", a[i]->field3);

         for(j = 0; j < a[i]->numOfStrings; j++)
         {
             printf("%s", a[i]->strings[j]);
         }
         printf("
");
    }
}

but I get loads of errors as such

invalid type argument of '->'

What am I doing wrong with this pointer?

Answer 1

a is of type Album* which means that a[i] is of type Album (it is the ith element in the array of Album object pointed to by a).

The left operand of -> must be a pointer; the . operator is used if it is not a pointer.