erlang - An error with ets and reading files -

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disclaimer: didn't write code, i'm trying make work.

i'm trying code here working. setup ubuntu 14.04 64bit machine erlang installed.

the sequence of actions follows: i'm doing follows:

  1. clone code
  2. cd folder code , erl in terminal
  3. make:all([load]).
  4. polis:create().
  5. polis:start().
  6. benchmarker:start(slidingwindow50).

the errors are:

4> benchmarker:start(slidingwindow50). true dimensions:4, plasticity:none dimensions:4, plasticity:none dimensions:4, plasticity:none dimensions:4, plasticity:none dimensions:4, plasticity:none dimensions:4, plasticity:none dimensions:4, plasticity:none dimensions:4, plasticity:none dimensions:4, plasticity:none dimensions:4, plasticity:none  specie_id:6.858114617542796e-10 morphology:forex_trader  ******** population monitor started parameters:{state,benchmark,test,[], [],undefined,undefined, undefined,[],0,0,0,0,0, undefined,undefined, undefined,undefined, undefined,undefined,0.5, 10,10,mathema,inf,10000, inf,<0.274.0>,false} initial tot evaluations:0  started started started started started started started  5> =error report==== 16-mar-2016::14:11:34 === error in process <0.287.0> exit value: {badarg,[{ets,last,['eurusd15'],[]},{fx,init_state,5,[{file,"fx.erl"},{line,375}]},{fx,sim,3,[{file,"fx.erl"},{line,284}]}]}  =error report==== 16-mar-2016::14:11:34 === error in process <0.288.0> exit value: {badarg,[{ets,last,['eurusd15'],[]},{fx,init_state,5,[{file,"fx.erl"},{line,375}]},{fx,sim,3,[{file,"fx.erl"},{line,284}]}]}

reviewing code of fx.erl shows problem stems ets part , .txt file not being read disk , table in memory.

update: i've been trying investigate function of fx. far, i've had such results: fx:sim(anything) outputs "started" , makes shell unresponsive; fx:init(). results in

initializing fx currency tables:[metadata,'eurusd15','eurusd30','eurusd60'] fx metadata & currency tables initialized , written file. ok

fx:loop(). outputs lot of

new record inserted table:'eurusd15'

with last line being

new forex_db update starting with:{2009,6,16,7,30,0,15}

and

=error report==== 22-mar-2016::16:41:26 === error in process <0.357.0> exit value: {badarg,[{fx,insert_forexraw,2,[{file,"fx.erl"},{line,767}]},{fx,updater,1,[{file,"fx.erl"},{line,698}]},{fx,heartbeat,3,[{file,"fx.erl"},{line,692}]}]}

running ets:i(). after fx:init(). shows no table called eurusd15.

why may be, , how can fix that?

p.s. if working solution found, intend ask changes merged original code (basically, i'll try push request).

i familiar platform, , running on our machines, used our training material last year.

this occurring because didn't start forex simulator before starting benchmarker.


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