When running "zkServer.sh start" I get these error messages:
$sudo sh bin/zkServer.sh start
MX enabled by default
bin/zkServer.sh: 69: cygpath: not found
grep: : No such file or directory
Starting zookeeper ...
$ Invalid config, exiting abnormally
The "Invalid config..." text is output from the server which terminates immediately after this message has been printed.
The fix is easy: Inside zkServer.sh change the line
if [ -n "$cygwin" ]
This fixes the problem and makes the server run