rebar3 fails to fetch and copy dependencies (LFE project)

Question

After some years I'd like to back working with Erlang/LFE . I've a little project I made to learn the language. I'm unable to fetch dependencies using rebar3 get-deps command.

It follows rebar.config , also available here .

{erl_opts, [debug_info, {src_dirs, ["test"]}]}.
{lfe_first_files, []}.
{deps_dir, ["deps"]}.
{eunit_compile_opts, [
   {src_dirs, ["test"]}
  ]}.
{deps, [
   {lfe, "0.9.0", {git, "git://github.com/rvirding/lfe.git", {tag, "v0.9.0"}}},
   {clj, ".*", {git, "git://github.com/lfex/clj.git"}},
   {lhc, ".*", {git, "git://github.com/lfex/lhc.git"}},
   {ljson, ".*", {git, "git@github.com:lfex/ljson.git", "master"}}, 
   {ltest, ".*", {git, "git://github.com/lfex/ltest.git", {tag, "0.4.1"}}}
  ]}.

I know that I've referenced an old version of LFE ... But if I remove all deps and try to add them again: the first that fails is clj . However with rebar.config in its original state, I got the following output after rebar3 get-deps . Complete output here .

===> Verifying dependencies...
===> Fetching clj (from {git,"git://github.com/lfex/clj.git"})
===> WARNING: It is recommended to use {branch, Name}, {tag, Tag} or {ref, Ref}, otherwise updating the dep may not work as expected.
===> Fetching lfe-compile (from {git,"https://github.com/lfe-rebar3/compile.git",
                       {tag,"0.5.0"}})
===> Fetching lfe (from {git,"https://github.com/rvirding/lfe.git",
               {ref,"697e9b4996fa843f4c6a9edea25005d30a9b8a14"}})
===> Compiling lfe
...
===> Compiling ltest
 ~~>    Finding .lfe files ...
 ~~>    Compiling ./_build/default/plugins/ltest/src/ltest.lfe ...
 ~~>    Compiling ./_build/default/plugins/ltest/src/ltest-const.lfe ...
 ~~>    Compiling ./_build/default/plugins/ltest/src/ltest-formatter.lfe ...
 ~~>    Compiling ./_build/default/plugins/ltest/src/ltest-unit.lfe ...
 ~~>    Compiling ./_build/default/plugins/ltest/src/ltest-runner.lfe ...
===> Plugin {'lfe-test',{git,"https://github.com/lfe-rebar3/test.git",
                                    {tag,"0.4.0-rc2"}}} not available. It will not be used.
===> Fetching lfe-clean (from {git,"https://github.com/lfe-rebar3/clean.git",
                     {tag,"0.4.0-rc2"}})
===> Compiling lfe-clean
 ~~>    Finding .lfe files ...
 ~~>    Compiling ./_build/default/plugins/lfe-clean/src/lr3-cln-util.lfe ...
===> Plugin {'lfe-clean',{git,"https://github.com/lfe-rebar3/clean.git",
                                     {tag,"0.4.0-rc2"}}} not available. It will not be used.
===> Fetching ljson (from {git,"git@github.com:lfex/ljson.git","master"})
===> WARNING: It is recommended to use {branch, Name}, {tag, Tag} or {ref, Ref}, otherwise updating the dep may not work as expected.
===> Failed to fetch and copy dep: {git,"git@github.com:lfex/ljson.git","master"}

I checked a similar question and documentation , but I was still unable to fix the problem.

My system is macOS Catalina. It follows Erlang environment versions: ERLANG 22.2.1, LFE 1.3, REBAR3 3.12.0.

All installed with brew . Please let me know if more details are needed.

I would really appreciate any help.

Answer 1

I finally discovered that referencing lfe/clj and lfe/lhc is redudant, since these packages are indirectly and correctly referenced in implicit way from other ones.

I've removed these from rebar.config , updated to latest syntax and used tag when possible (otherwise master ). I switched all URLs to use https:// instead of SSH with scheme git:// .

Now I'm able to get dependencies with rebar3 get-deps and compile with rebar3 compile .

Updated rebar.config :

{erl_opts, [debug_info, {src_dirs, ["test"]}]}.
{lfe_first_files, []}.
{deps_dir, ["deps"]}.
{eunit_compile_opts, [
   {src_dirs, ["test"]}
  ]}.
{deps, [
   {lfe, {git, "https://github.com/rvirding/lfe.git", {"tag", "v1.3"}}},
   {ljson, {git, "https://github.com/lfex/ljson.git", "master"}},
   {ltest, {git, "https://github.com/lfex/ltest.git", {tag, "0.9.0"}}}
  ]}.