Contradiction with 1 Kings 9:17
2 Chronicles 8:5 states Solomon built Beth-horon, whereas 1 Kings 9:17 mentions Solomon built Gezer, which is not listed in the Chronicles account.
1 Kings 9:17: And Solomon built Gezer, and Bethhoron the nether,
Contradiction with 2 Samuel 5:9
2 Chronicles 8:5 attributes the building of cities to Solomon, but 2 Samuel 5:9 suggests that David was responsible for building up parts of Jerusalem.
2 Samuel 5:9: So David dwelt in the fort, and called it the city of David. And David built round about from Millo and inward.