It isnt letting me download the new update 1.11.2

I've been playing Minecraft for awhile and all of the updates seemed to work fine until this one came out.

I expected it to run through as usual and update but it unfortunately did not.
I go to update it and it says: Error Unable to save download. fy_nl.lang. I tried restarting my computer an the same thing happens.

In order to "trigger" the bug you hit Play and under it says download 1.11.2 latest release. it loads till about a 1/4 of the way then it stops. and says what it did above. What should I do?