The Gemara in Moed Katan 9 said that the Beis Hamikdash was inaugurated right after being finished, while I've seen a Medrash that it was finished in Cheshvan and the inauguration was put on hold.
Does anyone talk about this contradiction?
From the Codex Judaica pg 94:
The 7th of Tishrei Shlomo Hamelech gathered all of bnei Yisrael to honor the entry of Aron into the new bais Hamikdash. They celebrated for seven days even on Yom kippur,then they celabrated sukkos (Melachim 1:8:1-6 ,Masheches Moed Katan 9, and shabbas 30a) The Finishing touches to the new building were completed in Chesvan(Melachim 1:6:38) ,Ralbag Divrei Hayamim 2 :7:10,11)
The constructioin started in Iyar (Shmuel 2:5:11)