cbbrowse_logs fails on mac osx 181

1.Run cbbrowse_logs from home - Get log file does not exist.
Ketakis-MacBook-Pro:~ ketaki$ /Applications/Couchbase\ Server.app/Contents/Resources/couchbase-core/bin/cbbrowse_logs
Requested log file "debug" does not exist.

2. Run cbcollect_info from home : Get Failed to open file : cbdumpconfig.escript error
Ketakis-MacBook-Pro:~ ketaki$/Applications/Couchbase\ Server.app/Contents/Resources/couchbase-core/bin/cbcollect_info
escript: Failed to open file: cbdumpconfig.escript
Done: previous node configuration is empty.

• cd /Applications/Couchbase\ Server.app/Contents/Resources/couchbase-core/bin
• Exceute commands from bin folder
  $ ./cbbrowse_logs
  .
  /Applications/Couchbase Server.app/Contents/Resources/couchbase-core/bin/erl: line 28: /Applications/Couchbase Server.app/Contents/Resources/couchbase-core/bin/lib/erlang/erts-5.8.*/bin/erlexec: No such file or directory
  /Applications/Couchbase Server.app/Contents/Resources/couchbase-core/bin/erl: line 28: exec: /Applications/Couchbase Server.app/Contents/Resources/couchbase-core/bin/lib/erlang/erts-5.8.*/bin/erlexec: cannot execute: No such file or directory

Not able to find directory " app/Contents/Resources/couchbase-core/bin/lib/erlang/erts-5.8.*/bin/erlexec:"

line 28: exec "$BINDIR/erlexec" ${1+"$@"}

cat cbbrowse_logs shows
COUCHBASE_BIN=`dirname "$0"`
COUCHBASE_TOP=`dirname "$COUCHBASE_BIN"`
echo $COUCHBASE_TOP
export COUCHBASE_TOP