everytime i press capture it says "Couldn't run /usr/bin/dumpcap in child process: Permission denied
everytime i press capture "Couldn't run /usr/bin/dumpcap in child process: Permission denied" and when i press ok it says "Error by extcap pipe: * (process:1422): WARNING *: 11:39:10.841: Missing parameter: --remote-host"
Presumably you're using an extcap for the capture, is it sshdump or something else, your question is lacking details on the interface you're attempting to use. Can you also provide OS and Wireshark version?