Erlang rebar why dependencies are not loaded?

Question

Erlang

rebar.config content:

{deps, [
  {cowboy, ".*", {git, "https://github.com/ninenines/cowboy.git", {branch, "master"}}},
  {sync, ".*", {git, "git://github.com/rustyio/sync.git", {branch, "master"}}}
]}

If you execute rebar get-deps, then rebar gives an error ERROR: Failed to load rebar.config
: {error, {4, erl_parse, ["syntax error before: ", []]}}
what's my mistake.

Answer 1

"dot" after "]}" put

{deps, [
  {'cowboy', "", {git, "https://github.com/ninenines/cowboy.git", {branch, master}}},
  {'sync', "", {git, "git://github.com/rustyio/sync.git", {branch, master}}}
]}.