1. Incomplete or unclear information provided by the client or project team
2. Unclear project goals or objectives
3. Inaccurate measurement or analysis of the site and surroundings
4. Inadequate understanding or consideration of local building codes and regulations
5. Poor communication and collaboration among team members
6. Lack of attention to detail in design development and documentation
7. Incomplete or unrealistic project timelines and budgets
8. Limited availability of construction materials and methods
9. Unforeseen site conditions or environmental factors
10. Inadequate testing or analysis of design prototypes.
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