Fix 'rake' without SELECTOR_ENGINE environment variable set
Fix 'rake' without SELECTOR_ENGINE environment variable set

ldf7801528/prototype,fashionsun/prototype,sdumitriu/prototype,loduis/prototype,ldf7801528/prototype,sstephenson/prototype,lamsieuquay/prototype,sstephenson/prototype,ShefronYudy/prototype,Gargaj/prototype,loduis/prototype,fashionsun/prototype,sdumitriu/prototype,ShefronYudy/prototype,erpframework/prototype,ridixcr/prototype,fashionsun/prototype,ldf7801528/prototype,leafo/prototype,ridixcr/prototype,leafo/prototype,sdumitriu/prototype,baiyanghese/prototype,sstephenson/prototype,292388900/prototype,Jiasm/prototype,erpframework/prototype,ShefronYudy/prototype,baiyanghese/prototype,ridixcr/prototype,292388900/prototype,loduis/prototype,Jiasm/prototype,Jiasm/prototype,292388900/prototype,lamsieuquay/prototype,Gargaj/prototype,lamsieuquay/prototype,Gargaj/prototype,erpframework/prototype