Running on PC Windows 10, this morning I join the game, promptly killed by an invisible zombie, try to get back in and am getting this from the launcher:
"Error: Could not find or load main class net.minecraft.client.main.Main
Java HotSpot(TM) Client VM warning: Using incremental CMS is deprecated and will likely be removed in a future release"
I seem to have reverted back to 1.8.9. Have tried to re update to 1.9 to no avail. Any help?
Thanks.

maybe delete minecraft from your downloads, then re install?

@iiTzzJojooo maybe delete minecraft from your downloads, then re install?

Thanks bud! I don't know what happened but I'm back on.

np! always willing to help