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Custom Process Step Not Valid - Workflow Issue RRS feed

  • Question

  • Hi

    We have recently installed Update Rollup 18 on our CRM 2011 environment and we are unable to create new workflows or edit existing workflows.

    We updated the application and database successfully however we can access workflows.

    We receive an error message stating that 'This custom process step is not valid'. We have enabled DEV errors and noticed the following error:

    Microsoft CRM Error Report:

          Error Description:Assembly can not be loaded.
          Error Details:Assembly can not be loaded.
          Full Stack:[CrmException: Assembly can not be loaded.]
       at Microsoft.Crm.Workflow.ObjectModel.CustomActivityInfoMetadataBase.GetCustomActivityInfo(ActivityInfo activityInfo, Int32 isolationMode)
       at Microsoft.Crm.Workflow.ObjectModel.CustomActivityInfoMetadataBase.GetCustomActivityInfo(Guid pluginTypeId)
       at Microsoft.Crm.Web.Sfa.WorkflowDetailPage.ConfigureCustomActivityStepMenu(CommandBarPopup addStepButton)
       at Microsoft.Crm.Web.Sfa.WorkflowDetailPage.ConfigureWorkflowStepMenu(WorkflowStep workflowStep)
       at Microsoft.Crm.Application.Controls.PageManager.OnPreRender(EventArgs e)
       at System.Web.UI.Control.PreRenderRecursiveInternal()
       at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

    [HttpUnhandledException: Exception of type 'System.Web.HttpUnhandledException' was thrown.]
       at System.Web.UI.Page.HandleError(Exception e)
       at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
       at System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
       at System.Web.UI.Page.ProcessRequest()
       at System.Web.UI.Page.ProcessRequest(HttpContext context)
       at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
       at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)

    We would really appreciate any suggestions.

    Thanks

    Regards
    Tony

    Monday, June 15, 2015 9:03 AM