test = CreateDynamicObject(19378, -1815.56, 824.562, 127.118, 0, 90, 0,worldid, interiorid, -1);
SetDynamicObjectMaterial(test, 0, 4550, skyscr1_lan2, sl_librarycolmn2, 0); // error line
error 017: undefined symbol "skyscr1_lan2"
SetDynamicObjectMaterial(test, 0, 4550, "skyscr1_lan2", "sl_librarycolmn2", 0); // error line