Importing error in CLI

[KimHono]

While Gekko is running perfectly, when I try to import historical datas, I get this error :

Gekko v0.4.10
I'm gonna make you rich, Bud Fox. 

2017-05-25 07:52:15 (INFO): Setting up Gekko in importer mode
2017-05-25 07:52:15 (INFO):
2017-05-25 07:52:15 (INFO): Setting up:
2017-05-25 07:52:15 (INFO): Candle writer
2017-05-25 07:52:15 (INFO): Store candles in a database
2017-05-25 07:52:15 (INFO):

2017-05-25 07:52:15 (WARN): The plugin Trading Advisor does not support the mode importer. It has been disabled.
2017-05-25 07:52:15 (WARN): The plugin Paper Trader does not support the mode importer. It has been disabled.
2017-05-25 07:52:15 (DEBUG): No end date specified for importing, setting to 2017-05-25 07:52:15
module.js:471
throw err;
^

Error: Cannot find module '/home/KimHono/gekko/core/../importers/exchanges/Poloniex'
at Function.Module._resolveFilename (module.js:469:15)
at Function.Module._load (module.js:417:25)
at Module.require (module.js:497:17)
at require (internal/module.js:20:19)
at Object. (/home/KimHono/gekko/core/markets/importer.js:38:15)
at Module._compile (module.js:570:32)
at Object.Module._extensions..js (module.js:579:10)
at Module.load (module.js:487:32)
at tryModuleLoad (module.js:446:12)
at Function.Module._load (module.js:438:3)

[askmike]

When using the CLI you need to specify the exchange using small caps. So replace Poloniex with poloniex.

[KimHono]

Well done, thanks askmike !
This advice may be written in "sample-config.js" ?