Error org.zkoss.zk.ui.UiException: can't find Page to resolve a view model class ?

[weski taoto]

Hi All,

I try using viewModel <div apply="org.zkoss.bind.BindComposer" viewModel="@id('vm') @init('demo.grid.paging.PagingViewModel')">. but i got message error:

WARNING: can't find Page to resolve a view model class :'demo.grid.paging.PagingViewModel' at
org.zkoss.zk.ui.UiException: can't find Page to resolve a view model class :'demo.grid.paging.PagingViewModel' at theme/mytheme/zul/paging/paging.zul,
    at org.zkoss.bind.BindComposer.initViewModel(BindComposer.java:242)
    at org.zkoss.bind.BindComposer.doBeforeComposeChildren(BindComposer.java:146)
    at org.zkoss.zk.ui.impl.UiEngineImpl.doBeforeComposeChildren(UiEngineImpl.java:930)
    at org.zkoss.zk.ui.impl.UiEngineImpl.execCreateChild0(UiEngineImpl.java:869)
    at org.zkoss.zk.ui.impl.UiEngineImpl.execCreateChild(UiEngineImpl.java:826)
    at org.zkoss.zk.ui.impl.UiEngineImpl.execCreate0(UiEngineImpl.java:735)
    at org.zkoss.zk.ui.impl.UiEngineImpl.execCreate(UiEngineImpl.java:699)

zul file: http://www.zkoss.org/zkdemo/grid/paging
Here my custom form:
        Component component = Executions.createComponents(ThemeManager.getThemeResource("zul/paging/paging.zul"), m_Form, null);
       
        m_Form.appendChild(component);

Please help me