Build application for production

i found this tutorial that explains how to build your application for production.

My project structure is as follows;

ProjRoot --> app *--> ext (this is the extjs folder) *--> model (model folder it contain the model files of the projec) *--> view *--> controller *--> store *--> resources *--> servercode --> app.html --> app.js 

As the tutorial explained i navigated to ProjRoot from command prompt and typed the following code;

sencha create jsb -a http://localhost/ProjRoot/app.html -p app.jsb3 

This created a file, which is 1kb app.jsb3

Then i executed the following code

sencha build -p app.jsb3 -d . 

This produced 2 files.

1.) app-all.js 3KB

2.) all-classes.js 1KB

app-all.js contained code of the app.js file concatenated together, while all-classes.js didn't have any code inside it; i found the following code in it.

/* Copyright(c) 2012 Company Name */ 

According to the tutorial, i should be able to add these 2 files in the server and make the application up. But unfortunately it's not working for me. Help ?

And also, i added the launching html file, where i refer the above 2 files in that.

Can someone please give me step by step instructions or tell me what i missed?

UPDATE

I get the following error when i type the command as described in your post. How can i resolve it ?

C:\xampp\htdocs\ProjRoot>sencha create jsb -a a pp.html -p proj.jsb3 -v Error thown from your application with message: TypeError: 'null' is not a const ructor