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Best answer by Vijayalakshmi_S

Hi @tushaar_srivastava,

Workflow models rendering logic

In Classic UI is /libs/cq/workflow/components/console/models/options.json.jsp 

In Touch UI is /libs/cq/workflow/admin/console/components/datasource/modelsdatasource/modelsdatasource.jsp

Both retrieves models from WorkflowSession but former from com.day.cq.workflow.* API and latter using com.adobe.granite.workflow.*

 

Given that problem is in Touch UI alone, per the logic you should see a log message in error.log - "Error while retrieving workflow models." (Screenshot below)

Also you have mentioned that you have tried creating many new models, can you check where it got created. Is it under /var or /etc (if its fresh 6.5 instance, it should be in /var)

 

7 replies

Nikhil-Kumar
Community Advisor
Nikhil-KumarCommunity Advisor
Community Advisor
August 25, 2020

@tushaar_srivastava - Are you able to see it in classic version ?

    tushaar_srivastava
    tushaar_srivastavaAuthor
    Level 6
    August 25, 2020
    yes I am able to see all WF in classic Ui
      vanegi
      Adobe Employee
      vanegiAdobe Employee
      Adobe Employee
      August 25, 2020

      Hi @tushaar_srivastava,

      Do you see any error in AEM error.log when you hit the workflow model screen, please share the logs?

       

      Thanks!!

        tushaar_srivastava
        tushaar_srivastavaAuthor
        Level 6
        August 25, 2020
        I tried to refactor(beautify) this log but seems it is not accepting in comments. Could you please check this one
          Vijayalakshmi_S
          Vijayalakshmi_SAccepted solution
          Level 10
          August 25, 2020

          Hi @tushaar_srivastava,

          Workflow models rendering logic

          In Classic UI is /libs/cq/workflow/components/console/models/options.json.jsp 

          In Touch UI is /libs/cq/workflow/admin/console/components/datasource/modelsdatasource/modelsdatasource.jsp

          Both retrieves models from WorkflowSession but former from com.day.cq.workflow.* API and latter using com.adobe.granite.workflow.*

           

          Given that problem is in Touch UI alone, per the logic you should see a log message in error.log - "Error while retrieving workflow models." (Screenshot below)

          Also you have mentioned that you have tried creating many new models, can you check where it got created. Is it under /var or /etc (if its fresh 6.5 instance, it should be in /var)

           

            tushaar_srivastava
            tushaar_srivastavaAuthor
            Level 6
            August 25, 2020
            it is under /var
              Varun_Shakya
              Community Advisor
              Varun_ShakyaCommunity Advisor
              Community Advisor
              August 25, 2020

              This is one similar thread 

              https://experienceleaguecommunities.adobe.com/t5/adobe-experience-manager/aem-6-4-could-not-find-model-for-workflow-dam-xmp-writeback/qaq-p/240182

               

              Check the comments provided by Hemant .

               

                tushaar_srivastava
                tushaar_srivastavaAuthor
                Level 6
                August 26, 2020

                Hi Team, I tried to clear error.log and checked, I have deleted one Workflow Model from CRX that was under /var and /conf folder and because of this manually deleting the model, affected on the WF Model screen as per attached above. when I checked log and created the same model in Local and uploaded it into the local where this error was coming, then it got resolved, still wondering by deleting the WF Model from /var & /conf from CRX how this affected?

                  knitshweta
                  knitshweta
                  Level 2
                  August 27, 2020

                  My first question is after deleting how did u create this model? Was it via code deployment or via workflow console?

                  Either way, when you create the model you will definitely see it in /conf.

                  You just have to make sure it exists in /var also.

                  If not, just open http://localhost:4502/cf#/conf/settings/workflow/models/my-model.html  

                  manually and save it. This will create a /var node then you will be able to see the model.

                   

                    tushaar_srivastava
                    tushaar_srivastavaAuthor
                    Level 6
                    August 27, 2020
                    My first question is after deleting how did u create this model? by going through WF console. but once I created a WF Model though WF console and can see the node created under /var and /conf and if manually we delete those WF through CRX in that case this WF Model console is blank. and when I again created the WF which I deleted in different Local and uploaded into the local where we were seeing issue, then it worked.
                      A
                      abhiyash_agrawal
                      Level 2
                      September 15, 2022

                      Hello All,

                       

                      I am also facing the same issue that not able to see any workflow model under touch UI. It is working in Classic UI.

                      http://localhost:4512/libs/cq/workflow/admin/console/content/models.html

                       

                      Getting below error in the log:

                      +++++++++++++++++++++++++++++++++++++

                      15.09.2022 13:58:17.872 | ERROR | 127.0.0.1 [1663250297802] GET /libs/cq/workflow/admin/console/content/models.html HTTP/1.1 | org.apache.sling.engine.impl.SlingRequestProcessorImpl | service: Uncaught SlingException
                      java.lang.NullPointerException: null
                      at org.apache.jsp.libs.cq.workflow.admin.console.components.item.workflowmodel.card.card_jsp._jspService(card_jsp.java:502)
                      at org.apache.sling.scripting.jsp.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
                      at javax.servlet.http.HttpServlet.service(HttpServlet.java:725)
                      at org.apache.sling.scripting.jsp.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:502)
                      at org.apache.sling.scripting.jsp.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:449)
                      at org.apache.sling.scripting.jsp.JspScriptEngineFactory.callJsp(JspScriptEngineFactory.java:339)

                      +++++++++++++++++++++++++++++++++++++++

                       

                      Any ideas how to get away with the issue

                        A
                        abhiyash_agrawal
                        Level 2
                        September 16, 2022

                        Issue is now resolved for me....
                        There was one workflow model at my side wherein the design time path was not found properly under /conf which was creating the issue.

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