How you installed obfs4proxy?
Did you compile from the source or installed via apt?
If you installed via apt, the correct line is:
ServerTransportPlugin obfs4 exec /usr/bin/obfs4proxy
How you installed obfs4proxy?
Did you compile from the source or installed via apt?
If you installed via apt, the correct line is:
ServerTransportPlugin obfs4 exec /usr/bin/obfs4proxy