Final answer:
The Proclamation of 1763 caused problems between the colonies and Britain by restricting westward expansion and violating colonists' rights, leading to growing resentment and eventually the American Revolution.
Step-by-step explanation:
The Proclamation of 1763 caused problems between the colonies and Britain because it restricted the colonists from settling west of the Appalachian Mountains. This was done to prevent conflicts with Indian tribes in the Ohio Valley and to maintain peace with Native Americans after the Seven Years War.
The colonists were disappointed as they had fought on behalf of Britain and hoped to settle on the land that had been taken from France. This restriction on westward expansion angered the colonists who saw it as a violation of their rights and contributed to the growing resentment and dissatisfaction that eventually led to the American Revolution.