wireshark:Couldn't run /usr/bin/dumpcap in child process: Permission denied

When start wireshark, I met an error like:

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Couldn't run /usr/bin/dumpcap in child process: Permission denied

Solution:

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sudo apt-get install libcap2-bin wireshark
sudo chgrp myusername /usr/bin/dumpcap
sudo chmod 750 /usr/bin/dumpcap
sudo setcap cap_net_raw,cap_net_admin+eip /usr/bin/dumpcap

Reference: http://ubuntuforums.org/showthread.php?t=2039978