after weex-toolkit is updated to 1.2.9, setting the entry file app.js, in webpack.common.conf.js cannot be executed. Previous versions did not have this problem
 the following is the code: 
 / / const webEntry = {}; 
 / / const weexEntry = {}; 
 const webEntry = {index: path.resolve ("src"," app.js")}; 
 const weexEntry = {index: path.resolve ("src"," app.js")}; 
cannot execute the code in src/app.js. Is this the bug of the new version of weex, or am I doing something wrong? Please give me some advice!
