MyEclipse8.5安装flex4插件，然后启动出现一些问题

问题日志如下：
!MESSAGE 在“Initializing TargetCfg”期间发生了内部错误。
!STACK 0
java.lang.NoClassDefFoundError: Could not initialize class org.apache.commons.httpclient.HttpClient
    at com.genuitec.pulse2.common.http.httpclient.ws.internal.HttpClientMaynstallClient.initializeHttpClient(Unknown Source)
    at com.genuitec.pulse2.common.http.httpclient.ws.internal.HttpClientMaynstallClient.<init>(Unknown Source)
    at com.genuitec.pulse2.common.http.httpclient.ws.internal.HttpClientMaynstallClientProvider.getMaynstallClient(Unknown Source)
    at com.genuitec.pulse2.client.services.internal.PulseClient.updateDelegate(Unknown Source)
    at com.genuitec.pulse2.client.services.internal.PulseClient.initialize(Unknown Source)
    at com.genuitec.pulse2.client.services.internal.PulseClient.execute(Unknown Source)
    at org.eclipse.maynstall.client.core.MaynstallActionRequest.execute(Unknown Source)
    at com.genuitec.pulse2.client.properties.PropertyServices.fetchProperties(Unknown Source)
    at com.genuitec.pulse2.client.properties.PropertyServices.getProperties(Unknown Source)
    at com.genuitec.pulse2.client.properties.PropertyServices.getBooleanProperty(Unknown Source)
    at com.genuitec.pulse2.client.common.provisioning.errors.ErrorReporterService.report(Unknown Source)
    at com.genuitec.pulse2.client.common.provisioning.errors.ErrorReporterService.report(Unknown Source)
    at com.genuitec.pulse2.client.common.provisioning.internal.services.ClientBlueprintServerLookup.sendErrorReport(Unknown Source)
    at com.genuitec.pulse2.client.common.provisioning.internal.services.ClientBlueprintServerLookup.syncBlueprint(Unknown Source)
    at com.genuitec.pulse2.client.common.provisioning.ClientBlueprintServices.getBlueprint(Unknown Source)
    at com.genuitec.pulse2.client.common.provisioning.ClientBlueprintServices.getThisBlueprint(Unknown Source)
    at com.genuitec.pulse2.client.targetcfg.ui.jobs.InitializeTargetCfgJob.run(Unknown Source)
    at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
----------------解决方案--------------------------------------------------------
好像不能这样安装,
flex4 是独立的程序, 需要注册码
----------------解决方案--------------------------------------------------------