/scoreboard players set @e[type=!Player] sample 1
/scoreboard objectives setdisplay sidebar sample
This makes crash.
Attachments
Comments 4
Incomplete without a crash report from ([minecraft/crash-reports/crash-<DATE>-client.txt|http://hopper.minecraft.net/help/finding-minecraft-data-folder]). Please attach it so that we can diagnose your issue.
Then don't write "crash".
Please provide the exact sequence of commands you've used.
Please attach the complete output of the "Development console" which can be found on the second tab of the launcher.
If the launcher closes after game start, please edit your profile and select "Launcher visibility" then, "Keep the launcher open".
Unable to reproduce.