When I click play on the minecraft launcher it says "unable to delete corrupt file

URL: https://launchermeta.mojang.com/mc/assets/1.12/e75e9535754c6f2158b0b18b35660f45c4495d78/1.12.json
Error details: File hash should be e75e9535754c6f2158b0b18b35660f45c4495d78 but was 98c430c16a705f18a58a281b27caabf3ef09d40d Access is denied
Filename on disk: 1.12.json
Path: C:/Users\irvin\AppData\Roaming\.minecraft\assets\indexes/1.12.json
Exists: file