SmartGWT widgets not displayed, Firebug shows "TypeError: $wnd.isc is undefined"

[mcari]

Hello,
I have created a sample GWT application using webappcreator and I have imported it in NetBeans 7.3 to run on Glassfish 3.1.2.2. After I configure the classpath entries correctly on the build.xml file, I can build the code, deploy it on Glassfish and run it without issues.

I then added the SmartGWT library to the gtw.xml file and to the build.xml file. When I try to add a new SmartGWT widget to my page, this does not get displayed and the following error is shown in Firebug (on Firefox 35):

TypeError: $wnd.isc is undefined

I'm using GWT 2.6.1 and SmartGWT 5.0. Using GWT 2.7.0 or SmartGWT 4.1 seem to produce the same problem.

How can I resolve this issue?

My module gwt.xml file contains the following lines to enable SmartGWT:

  <inherits name="com.smartgwt.SmartGwt"/>
  <set-configuration-property name='xsiframe.failIfScriptTag' value='FALSE'/>

My main entry point class has the following code to add the SmartGWT widget:

    Calendar calendar = new Calendar();
    Date today = new Date();
    int year = today.getYear();
    int month = today.getMonth();
    int start = today.getDate() - today.getDay();
    CalendarEvent[] myEvents = new CalendarEvent[]
    {
      new CalendarEvent(1, "Meeting", "Shareholders meeting: monthly forecast report", new Date(year, month, start + 2, 9, 0, 0), new Date(year, month, start + 2, 14, 0, 0)),
      new CalendarEvent(2, "Realtor", "Breakfast with realtor to discuss moving plans", new Date(year, month, start + 3, 8, 0, 0), new Date(year, month, start + 3, 10, 0, 0)),
    };
    calendar.setData(myEvents);
    calendar.draw();

[Isomorphic]

There's a known issue with GWT 2.7 not respecting <script> declarations in our module files, which you can follow here. This would not affect GWT 2.6.

Most likely, you either forgot to run a GWT compile before testing, or something is wrong with either your NetBeans or Glassfish setup which is causing the various script files from the SmartClient runtime (ISC_Core.js et al) not to load. Look in your browser's developer tools to see if requests are being sent for these files, and whether you are getting 404 errors for some reason.