Chart issue unable to find files related to chart in sencha touch 2.3.x

I'm trying to create pie chart. while i was building my code i got error

[ERR] BUILD FAILED

[ERR] com.sencha.exceptions.ExBuild: Failed to find any files for C:\xampp\htdocs\And_Test1\app.js::ClassRequire::Ext.chart.PolarChart


My js code is

Ext.define('And_Test1.view.FormPanel', {

extend: 'Ext.form.Panel',

alias: 'widget.formpanel',





requires: [

'Ext.form.FieldSet',

'Ext.field.Select',

'Ext.Button',

'Ext.chart.PolarChart',

'Ext.chart.series.Pie',

'Ext.chart.interactions.Rotate'

],





config: {

items: [

{

xtype: 'fieldset',

id: 'fieldset',

title: 'Choose a car!',

items: [

{

xtype: 'selectfield',

id: 'makerField',

label: 'Maker',

usePicker: true

},

{

xtype: 'selectfield',

id: 'seriesField',

label: 'Series',

usePicker: true

},

{

xtype: 'selectfield',

id: 'modelField',

label: 'Model',

usePicker: true

},

{

xtype: 'button',

id: 'doneButton',

margin: 10,

text: 'Nice choice!'

}

]

},

{

xtype: 'polar',

height: 150,

colors: [

'#115fa6',

'#94ae0a',

'#a61120',

'#ff8809',

'#ffd13e',

'#a61187',

'#24ad9a',

'#7c7474',

'#a66111'

],

series: [

{

type: 'pie',

labelField: 'x',

xField: 'y2'

}

],

interactions: [

{

type: 'rotate'

}

]

}

]

}





});



and build report is given below







"C:/Users/Administrator/bin/Sencha/Cmd/4.0.4.84/sencha" app build testing





C:\xampp\htdocs\And_Test1>cd /D "C:\xampp\htdocs\And_Test1"





C:\xampp\htdocs\And_Test1>"C:/Users/Administrator/bin/Sencha/Cmd/4.0.4.84/sencha" app build testing

Sencha Cmd v4.0.4.84

[INF]

[INF] init-plugin:

[INF]

[INF] cmd-root-plugin.init-properties:

[INF]

[INF] init-properties:

[INF]

[INF] init-sencha-command:

[INF]

[INF] init:

[INF]

[INF] app-build-impl:

[INF]

[INF] -before-init-local:

[INF]

[INF] -init-local:

[INF]

[INF] -after-init-local:

[INF]

[INF] init-local:

[INF]

[INF] find-cmd-in-path:

[INF]

[INF] find-cmd-in-environment:

[INF]

[INF] find-cmd-in-shell:

[INF]

[INF] init-cmd:

[INF] [echo] Using Sencha Cmd from C:\Users\Administrator\bin\Sencha\Cmd\4.0.4.84 for C:\xampp\htdocs\And_Test1\build.xml

[INF]

[INF] -before-init:

[INF]

[INF] -init:

[INF] Initializing Sencha Cmd ant environment

[INF] Adding antlib taskdef for com/sencha/command/compass/ant/antlib.xml

[INF]

[INF] -after-init:

[INF]

[INF] -before-init-defaults:

[INF]

[INF] -init-defaults:

[INF]

[INF] -after-init-defaults:

[INF]

[INF] -init-compiler:

[INF]

[INF] init:

[INF]

[INF] -before-build:

[INF]

[INF] refresh:

[INF]

[INF] -before-refresh:

[INF]

[INF] -init:

[INF]

[INF] -init-compiler:

[INF]

[INF] -detect-app-build-properties:

[INF] Loading app json manifest...

[INF] Loading classpath entry C:\xampp\htdocs\And_Test1\touch\src

[INF] Loading classpath entry C:\xampp\htdocs\And_Test1\app.js

[INF] Loading classpath entry C:\xampp\htdocs\And_Test1\app

[INF] Loading classpath entry C:\xampp\htdocs\And_Test1\build\temp\testing\And_Test1\sencha-compiler\app

[ERR] C2008: Requirement had no matching files (Ext.chart.PolarChart) -- C:\xampp\htdocs\And_Test1\app.js:26:36

[ERR]

[ERR] BUILD FAILED

[ERR] com.sencha.exceptions.ExBuild: Failed to find any files for C:\xampp\htdocs\And_Test1\app.js::ClassRequire::Ext.chart.PolarChart

[ERR]

[ERR] Total time: 3 seconds

[ERR] The following error occurred while executing this line:

C:\xampp\htdocs\And_Test1\.sencha\app\build-impl.xml:367: The following error occurred while executing this line:

C:\xampp\htdocs\And_Test1\.sencha\app\js-impl.xml:11: com.sencha.exceptions.ExBuild: Failed to find any files for C:\xampp\htdocs\And_Test1\app.js::ClassRequire::Ext.chart.PolarChart



Please help me to resolve my chart issue.

Chart issue unable to find files related to chart in sencha touch 2.3.x