Contradiction with 1 Kings 2:15
Adonijah claims that the kingdom was rightfully his, contradicting the anointing of Solomon as king in 1 Kings 1:45.
1 Kings 2:15: And he said, Thou knowest that the kingdom was mine, and [that] all Israel set their faces on me, that I should reign: howbeit the kingdom is turned about, and is become my brother's: for it was his from the LORD.
Contradiction with 1 Chronicles 29:22
It mentions that Solomon was made king for the second time, implying a contradiction with the singular event in 1 Kings 1:45.
1 Chronicles 29:22: And did eat and drink before the LORD on that day with great gladness. And they made Solomon the son of David king the second time, and anointed [him] unto the LORD [to be] the chief governor, and Zadok [to be] priest.