The app won't compile

[alexander-ulyev]

1. git clone https://github.com/radaram/raboter.git
2. cd raboter
3. rebar3 compile

===> Verifying dependencies... ===> Fetching jiffy (from {git,"https://github.com/davisp/jiffy.git", {ref,"ba09da790477b0f7a31aeaa9b21cae0ffba27d77"}}) escript: exception error: undefined function enc:main/1 in function escript:run/2 (escript.erl, line 750) in call from escript:start/1 (escript.erl, line 277) in call from init:start_em/1 in call from init:do_boot/3 ===> Hook for compile failed!