integrate activiti-modeler got json not found

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Hi ,i got different problem when integrate activiti-modeler to my web application：
already copy the editor-app, modeler.html to webcontent,

and stencilset.json in WEB-INF/classes

i have change the app-cfg.js to my web context :
ACTIVITI.CONFIG = {
'contextRoot' : '/ActivitiProject/service',
};

1455932534455 INFO Plugin configuration file loaded.
oryx.debug.js:2126 1455932534460 ERROR A plugin is not providing a name. Ingnoring this plugin.
oryx.debug.js:2126 1455932534461 INFO Plugin 'Signavio.Plugins.Loading' successfully loaded.
oryx.debug.js:2126 1455932534462 INFO Plugin 'ORYX.Plugins.Loading' successfully loaded.
oryx.debug.js:2126 1455932534462 INFO Plugin 'ORYX.Plugins.CanvasResize' successfully loaded.
oryx.debug.js:2126 1455932534463 INFO Plugin 'ORYX.Plugins.RenameShapes' successfully loaded.
oryx.debug.js:2126 1455932534464 INFO Plugin 'ORYX.Plugins.ProcessLink' successfully loaded.
oryx.debug.js:2126 1455932534464 INFO Plugin 'ORYX.Plugins.Arrangement' successfully loaded.
oryx.debug.js:2126 1455932534465 INFO Plugin 'ORYX.Plugins.Save' successfully loaded.
oryx.debug.js:2126 1455932534465 INFO Plugin 'ORYX.Plugins.View' successfully loaded.
oryx.debug.js:2126 1455932534465 INFO Plugin 'ORYX.Plugins.DragDropResize' successfully loaded.
oryx.debug.js:2126 1455932534466 INFO Plugin 'ORYX.Plugins.HighlightingSelectedShapes' successfully loaded.
oryx.debug.js:2126 1455932534466 INFO Plugin 'ORYX.Plugins.DragDocker' successfully loaded.
oryx.debug.js:2126 1455932534467 INFO Plugin 'ORYX.Plugins.AddDocker' successfully loaded.
oryx.debug.js:2126 1455932534467 INFO Plugin 'ORYX.Plugins.SelectionFrame' successfully loaded.
oryx.debug.js:2126 1455932534468 INFO Plugin 'ORYX.Plugins.ShapeHighlighting' successfully loaded.
oryx.debug.js:2126 1455932534468 INFO Plugin 'ORYX.Plugins.Overlay' successfully loaded.
oryx.debug.js:2126 1455932534469 INFO Plugin 'ORYX.Plugins.KeysMove' successfully loaded.
oryx.debug.js:2126 1455932534469 INFO Plugin 'ORYX.Plugins.Layouter.EdgeLayouter' successfully loaded.
oryx.debug.js:2126 1455932534470 INFO Plugin 'ORYX.Plugins.BPMN2_0' successfully loaded.
angular.min.js:73 GET http://127.0.0.1:8888/ActivitiProject/service/model/342501/json 404 (Not Found)

404 - GET /ActivitiProject/service/model/342501/json (127.0.0.1) 1406 bytes

anythings i missed ? appreciate any comments or advise.

[mutable]

Someone can help me?