Error after my build

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Joined: 05/18/2009
Points: 13

I have downloaded the source code for the KCW (kcw_v1.5.2) and imported the project folder to Flex Builder 3. Then I've built the project (flex sdk 3.2) and uploaded new ContributionWizard.swf to the installed KalturaCE, folder - /kalturaCE/flash/kcw/v1.6.5CE/

Then I ran this sample
http://www.kaltura.com/api_v3/sample/add_media.php

and got the error

TypeError: Error #1009: Cannot access a property or method of a null object reference.
        at mx.managers::CursorManagerImpl/showCurrentCursor()[C:\autobuild\3.2.0\frameworks\projects\framework\src\mx\managers\CursorManagerImpl.as:627]
        at mx.managers::CursorManagerImpl/setCursor()[C:\autobuild\3.2.0\frameworks\projects\framework\src\mx\managers\CursorManagerImpl.as:422]
        at mx.managers::CursorManagerImpl/setBusyCursor()[C:\autobuild\3.2.0\frameworks\projects\framework\src\mx\managers\CursorManagerImpl.as:526]
        at mx.managers::CursorManager$/setBusyCursor()[C:\autobuild\3.2.0\frameworks\projects\framework\src\mx\managers\CursorManager.as:303]
        at mx.rpc.http.mxml::HTTPService/http://www.adobe.com/2006/flex/mx/internal::invoke()[C:\autobuild\3.2.0\frameworks\projects\rpc\src\mx\rpc\http\mxml\HTTPService.as:246]
        at mx.rpc.http::HTTPService/send()[C:\autobuild\3.2.0\frameworks\projects\rpc\src\mx\rpc\http\HTTPService.as:767]
        at mx.rpc.http.mxml::HTTPService/send()[C:\autobuild\3.2.0\frameworks\projects\rpc\src\mx\rpc\http\mxml\HTTPService.as:232]
        at com.kaltura.contributionWizard.business::WizardConfigDelegate/getWizardConfiguration()[D:\kcw_v1.5.2\src\com\kaltura\contributionWizard\business\WizardConfigDelegate.as:55]
        at com.kaltura.contributionWizard.command::GetWizardConfigCommand/execute()[D:\kcw_v1.5.2\src\com\kaltura\contributionWizard\command\GetWizardConfigCommand.as:47]
        at com.adobe_cw.adobe.cairngorm.control::FrontController/executeCommand()[C:\Documents and Settings\DELL\My Documents\Flex Builder 3\Cairngorm_CW\com\adobe_cw\adobe\cairngorm\control\FrontController.as:215]
        at flash.events::EventDispatcher/dispatchEventFunction()
        at flash.events::EventDispatcher/dispatchEvent()
        at com.adobe_cw.adobe.cairngorm.control::CairngormEventDispatcher/dispatchEvent()[C:\Documents and Settings\DELL\My Documents\Flex Builder 3\Cairngorm_CW\com\adobe_cw\adobe\cairngorm\control\CairngormEventDispatcher.as:113]
        at com.adobe_cw.adobe.cairngorm.commands::SequenceCommand/executeNextCommand()[C:\Documents and Settings\DELL\My Documents\Flex Builder 3\Cairngorm_CW\com\adobe_cw\adobe\cairngorm\commands\SequenceCommand.as:135]
        at com.kaltura.contributionWizard.command::SaveInjectedDataCommand/setContext()[D:\kcw_v1.5.2\src\com\kaltura\contributionWizard\command\SaveInjectedDataCommand.as:141]
        at com.kaltura.contributionWizard.command::SaveInjectedDataCommand/execute()[D:\kcw_v1.5.2\src\com\kaltura\contributionWizard\command\SaveInjectedDataCommand.as:90]
        at com.adobe_cw.adobe.cairngorm.control::FrontController/executeCommand()[C:\Documents and Settings\DELL\My Documents\Flex Builder 3\Cairngorm_CW\com\adobe_cw\adobe\cairngorm\control\FrontController.as:215]
        at flash.events::EventDispatcher/dispatchEventFunction()
        at flash.events::EventDispatcher/dispatchEvent()
        at com.adobe_cw.adobe.cairngorm.control::CairngormEventDispatcher/dispatchEvent()[C:\Documents and Settings\DELL\My Documents\Flex Builder 3\Cairngorm_CW\com\adobe_cw\adobe\cairngorm\control\CairngormEventDispatcher.as:113]
        at com.adobe_cw.adobe.cairngorm.control::CairngormEvent/dispatch()[C:\Documents and Settings\DELL\My Documents\Flex Builder 3\Cairngorm_CW\com\adobe_cw\adobe\cairngorm\control\CairngormEvent.as:77]
        at ContributionWizard/dispatchStartupSequence()[D:\kcw_v1.5.2\src\ContributionWizard.mxml:247]
        at ContributionWizard/onCreationComplete()[D:\kcw_v1.5.2\src\ContributionWizard.mxml:182]
        at ContributionWizard/___ContributionWizard_KApplication1_creationComplete()[D:\kcw_v1.5.2\src\ContributionWizard.mxml:30]
        at flash.events::EventDispatcher/dispatchEventFunction()
        at flash.events::EventDispatcher/dispatchEvent()
        at mx.core::UIComponent/dispatchEvent()[C:\autobuild\3.2.0\frameworks\projects\framework\src\mx\core\UIComponent.as:9298]
        at mx.core::UIComponent/set initialized()[C:\autobuild\3.2.0\frameworks\projects\framework\src\mx\core\UIComponent.as:1169]
        at mx.managers::LayoutManager/doPhasedInstantiation()[C:\autobuild\3.2.0\frameworks\projects\framework\src\mx\managers\LayoutManager.as:718]
        at Function/http://adobe.com/AS3/2006/builtin::apply()
        at mx.core::UIComponent/callLaterDispatcher2()[C:\autobuild\3.2.0\frameworks\projects\framework\src\mx\core\UIComponent.as:8628]
        at mx.core::UIComponent/callLaterDispatcher()[C:\autobuild\3.2.0\frameworks\projects\framework\src\mx\core\UIComponent.as:8568]

What was wrong when I've built the project?