Has the issue in this thread been resolved yet? if not, are there any workarounds other than using the older version of SwiftSuspenders?

In my case, after the context is initialized, I trigger the StartBootstrap signal which runs the BootstrapCommand. The BootstrapCommand triggers the LoadDefaultServerSettings signal which runs a command that loads the default server settings from the saved cache and sends it back through another signal DefaultServerSettingsLoaded. This signal calls a handler that was added to the signal inside BootstrapCommand. In the handler defaultServerSettingsLoadedHandler I dispatch another signal to connect to the server passing the loaded deafult server settings to it.

Here is the stack trace:

Error: Error while removing an injector mapping: No mapping defined for dependency com.tinyeye.tehomebase.vos::ServerSettingsVO| 
    at org.swiftsuspenders::Injector/unmap()[/Users/lindseyf/Documents/clients/github/SwiftSuspenders/src/org/swiftsuspenders/Injector.as:257]
    at robotlegs.bender.extensions.signalCommandMap.impl::SignalCommandTrigger/unmapSignalValues()[Z:\www\FlexProjects\libs\SignalCommandMap\src\robotlegs\bender\extensions\signalCommandMap\impl\SignalCommandTrigger.as:130]
    at robotlegs.bender.extensions.signalCommandMap.impl::SignalCommandTrigger/routeSignalToCommand()[Z:\www\FlexProjects\libs\SignalCommandMap\src\robotlegs\bender\extensions\signalCommandMap\impl\SignalCommandTrigger.as:114]
    at Function/<anonymous>()[Z:\www\FlexProjects\libs\SignalCommandMap\src\robotlegs\bender\extensions\signalCommandMap\impl\SignalCommandTrigger.as:163]
    at org.osflash.signals::Slot/execute()[Z:\www\FlexProjects\libs\as3-signals\src\org\osflash\signals\Slot.as:92]
    at org.osflash.signals::OnceSignal/dispatch()[Z:\www\FlexProjects\libs\as3-signals\src\org\osflash\signals\OnceSignal.as:132]
    at com.tinyeye.tehomebase.actions.configs.commands::BootstrapCommand/defaultServerSettingsLoadedHandler()[Z:\www\FlexProjects\TEHomeBase\src\com\tinyeye\tehomebase\actions\configs\commands\BootstrapCommand.as:57]
    at org.osflash.signals::Slot/execute()[Z:\www\FlexProjects\libs\as3-signals\src\org\osflash\signals\Slot.as:92]
    at org.osflash.signals::OnceSignal/dispatch()[Z:\www\FlexProjects\libs\as3-signals\src\org\osflash\signals\OnceSignal.as:132]
    at com.tinyeye.tehomebase.actions.serverSettings.commands::LoadDefaultServerSettingsCommand/execute()[Z:\www\FlexProjects\TEHomeBase\src\com\tinyeye\tehomebase\actions\serverSettings\commands\LoadDefaultServerSettingsCommand.as:32]
    at robotlegs.bender.extensions.signalCommandMap.impl::SignalCommandTrigger/routeSignalToCommand()[Z:\www\FlexProjects\libs\SignalCommandMap\src\robotlegs\bender\extensions\signalCommandMap\impl\SignalCommandTrigger.as:112]
    at Function/<anonymous>()[Z:\www\FlexProjects\libs\SignalCommandMap\src\robotlegs\bender\extensions\signalCommandMap\impl\SignalCommandTrigger.as:163]
    at org.osflash.signals::Slot/execute()[Z:\www\FlexProjects\libs\as3-signals\src\org\osflash\signals\Slot.as:88]
    at org.osflash.signals::OnceSignal/dispatch()[Z:\www\FlexProjects\libs\as3-signals\src\org\osflash\signals\OnceSignal.as:132]
    at com.tinyeye.tehomebase.actions.configs.commands::BootstrapCommand/execute()[Z:\www\FlexProjects\TEHomeBase\src\com\tinyeye\tehomebase\actions\configs\commands\BootstrapCommand.as:49]
    at robotlegs.bender.extensions.signalCommandMap.impl::SignalCommandTrigger/routeSignalToCommand()[Z:\www\FlexProjects\libs\SignalCommandMap\src\robotlegs\bender\extensions\signalCommandMap\impl\SignalCommandTrigger.as:112]
    at Function/<anonymous>()[Z:\www\FlexProjects\libs\SignalCommandMap\src\robotlegs\bender\extensions\signalCommandMap\impl\SignalCommandTrigger.as:163]
    at org.osflash.signals::Slot/execute()[Z:\www\FlexProjects\libs\as3-signals\src\org\osflash\signals\Slot.as:88]
    at org.osflash.signals::OnceSignal/dispatch()[Z:\www\FlexProjects\libs\as3-signals\src\org\osflash\signals\OnceSignal.as:132]
    at com.tinyeye.tehomebase::TEHomeBaseConfig/contextInitialized()[Z:\www\FlexProjects\TEHomeBase\src\com\tinyeye\tehomebase\TEHomeBaseConfig.as:186]
    at Function/<anonymous>()[Z:\www\FlexProjects\libs\robotlegs-framework\src\robotlegs\bender\framework\impl\Lifecycle.as:263]
    at flash.events::EventDispatcher/dispatchEventFunction()
    at flash.events::EventDispatcher/dispatchEvent()
    at robotlegs.bender.framework.impl::LifecycleTransition/dispatch()[Z:\www\FlexProjects\libs\robotlegs-framework\src\robotlegs\bender\framework\impl\LifecycleTransition.as:174]
    at Function/<anonymous>()[Z:\www\FlexProjects\libs\robotlegs-framework\src\robotlegs\bender\framework\impl\LifecycleTransition.as:151]
    at global/robotlegs.bender.framework.impl::safelyCallBack()[Z:\www\FlexProjects\libs\robotlegs-framework\src\robotlegs\bender\framework\impl\safelyCallBack.as:43]
    at MessageRunner/next()[Z:\www\FlexProjects\libs\robotlegs-framework\src\robotlegs\bender\framework\impl\MessageDispatcher.as:181]
    at MessageRunner/run()[Z:\www\FlexProjects\libs\robotlegs-framework\src\robotlegs\bender\framework\impl\MessageDispatcher.as:129]
    at robotlegs.bender.framework.impl::MessageDispatcher/dispatchMessage()[Z:\www\FlexProjects\libs\robotlegs-framework\src\robotlegs\bender\framework\impl\MessageDispatcher.as:87]
    at robotlegs.bender.framework.impl::LifecycleTransition/enter()[Z:\www\FlexProjects\libs\robotlegs-framework\src\robotlegs\bender\framework\impl\LifecycleTransition.as:153]
    at robotlegs.bender.framework.impl::Lifecycle/initialize()[Z:\www\FlexProjects\libs\robotlegs-framework\src\robotlegs\bender\framework\impl\Lifecycle.as:91]
    at robotlegs.bender.extensions.stageSync::StageSyncExtension/initializeContext()[Z:\www\FlexProjects\libs\robotlegs-framework\src\robotlegs\bender\extensions\stageSync\StageSyncExtension.as:89]
    at robotlegs.bender.extensions.stageSync::StageSyncExtension/onAddedToStage()[Z:\www\FlexProjects\libs\robotlegs-framework\src\robotlegs\bender\extensions\stageSync\StageSyncExtension.as:83]
    at flash.display::DisplayObjectContainer/addChildAt()
    at mx.managers::SystemManager/preloader_preloaderDoneHandler()[E:\dev\4.y\frameworks\projects\framework\src\mx\managers\SystemManager.as:2664]
    at flash.events::EventDispatcher/dispatchEventFunction()
    at flash.events::EventDispatcher/dispatchEvent()
    at mx.preloaders::Preloader/displayClassCompleteHandler()[E:\dev\4.y\frameworks\projects\framework\src\mx\preloaders\Preloader.as:582]
    at flash.events::EventDispatcher/dispatchEventFunction()
    at flash.events::EventDispatcher/dispatchEvent()
    at mx.preloaders::SparkDownloadProgressBar/initCompleteHandler()[E:\dev\4.y\frameworks\projects\framework\src\mx\preloaders\SparkDownloadProgressBar.as:1087]
    at flash.events::EventDispatcher/dispatchEventFunction()
    at flash.events::EventDispatcher/dispatchEvent()
    at mx.preloaders::Preloader/dispatchAppEndEvent()[E:\dev\4.y\frameworks\projects\framework\src\mx\preloaders\Preloader.as:380]
    at mx.preloaders::Preloader/appCreationCompleteHandler()[E:\dev\4.y\frameworks\projects\framework\src\mx\preloaders\Preloader.as:590]
    at flash.events::EventDispatcher/dispatchEventFunction()
    at flash.events::EventDispatcher/dispatchEvent()
    at mx.core::UIComponent/dispatchEvent()[E:\dev\4.y\frameworks\projects\framework\src\mx\core\UIComponent.as:13152]
    at mx.core::UIComponent/set initialized()[E:\dev\4.y\frameworks\projects\framework\src\mx\core\UIComponent.as:1818]
    at mx.managers::LayoutManager/doPhasedInstantiation()[E:\dev\4.y\frameworks\projects\framework\src\mx\managers\LayoutManager.as:842]
    at mx.managers::LayoutManager/doPhasedInstantiationCallback()[E:\dev\4.y\frameworks\projects\framework\src\mx\managers\LayoutManager.as:1180]

Thanks,