1.12 Start Up Issue

I press play and something like this pops up:Unable to save download. gl_es.lang
Name: gl_es.lang
URL: http://resources.download.minecraft.net/10/1032569fb0374a0d084059cdae02b29e2de47bcd
Error details: Attempting to move successful download to C:/Users\marti\AppData\Roaming\.minecraft\assets\objects\10/1032569fb0374a0d084059cdae02b29e2de47bcd
The process cannot access the file because it is being used by another process
Filename on disk: bf57-f46f-e197-c8cf
Path: C:\Users\marti\AppData\Local\Temp\bf57-f46f-e197-c8cf
Exists: file

and i press play multiple times but a different thing cant be downloaded plz help me!