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Variable type mismatch error

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  • Variable type mismatch error

    I am getting the following xbasic stack error when running a page with a UX component on it. I am having trouble understanding what is going on. The error seems to say that there is something wrong with the alpha five code itself when it tries to run the template, or am I not understanding it at all. Help, please!

    Thu Feb 14 16:11:52 2019
    Thread: AppServerWorker8
    Request URI: /__a5RunDialog.a5w?__pageName=cust_register.a5w&__dialogFilename=CUST_REGISTER&__alias=CUST_REGISTER&__unsaved=no
    Script: " /__a5RunDialog.a5w"
    Line: 169
    x_out = a5_ajax_dialog2(tmpl)
    pTemp = ValidateXFile(pRules, value)
    Script:TEMPLATE line:1
    Variable type mismatch: Cannot assign data of type 'L' to variable of type 'N'.
    Execution Stack:
    0#1 evaluate_shared_private(           
    0#37 OOhttpdServerClientMIME(ptemp,"AppServerMain")
    0#2 A5WCallResult = evaluate_a5w_to_response(page_contents,Response,quote(" " +,eval_settings,EVALUATE_A5W_TIMEOUT,RequestBundle.RequestInfo.Filename.Path)
    0#169 x_out = a5_ajax_dialog2(tmpl)
    Richard Urban

    Grocery Delivery Software for Stores and Entrepreneurs:

  • #2
    Re: Variable type mismatch error

    You'd have to post which Alpha build you're using.

    What this working? Did you update anything? Change anything?


    • #3
      Re: Variable type mismatch error

      Ver. 12.3 Build 2682: 4435
      I am running this page and component on my test instance. I was running it before without issue. I did not change anything. I also uploaded an earlier version of the component, but the error is the same.
      Richard Urban

      Grocery Delivery Software for Stores and Entrepreneurs:


      • #4
        Re: Variable type mismatch error

        Sorry, that build is a bit too old for me... 4 years. I would re-start that instance... see it that helps.


        • #5
          Re: Variable type mismatch error

          No, that did not work. Funny thing is that the same page runs fine on other instances??? I also reinstalled the app server used for the instance, too. I also tried assigning the instance to a different app server file on the server.
          Richard Urban

          Grocery Delivery Software for Stores and Entrepreneurs:


          • #6
            This error occurred erratically on one UX component, and also on another UX using that UX as a foundation. I rebuilt the UX from scratch and it is now working.
            The problem seems to be caused by repeatedly changing and saving the component, which also included commented out text and unused x-basic functions. Somehow the UX became corrupted and it sometimes worked but many times did not.
            So again, the only solution seems to be to rebuild the component from scratch.
            Richard Urban

            Grocery Delivery Software for Stores and Entrepreneurs:


            • #7
              Further update. My new form was corrupted, giving the same variable type mismatch error in the x-basic stack when I changed the error settings, under properties. I was also trying to set an xbasic validation rule.
              So one or more of these settings has to do with the corruption. I cannot recover from the corruption, again.
              Richard Urban

              Grocery Delivery Software for Stores and Entrepreneurs:


              • #8
                I have narrowed the cause down to validation Xbasic for the confirm_password field
                this code causes the error
                if alltrim( <> alltrim( then
                validate_confirm_password.hasError = .t.
                validate_confirm_password.errorText = "Passwords must match."
                end if
                However, even if you comment out the code, or delete it, the error continues. However, a work-around is to change the code so that it cannot be evaluated, for instance, by specifying a field name in the evaluation code that does not exist. This does cause an Xbasic error stack log error, but the UX will submit and otherwise work correctly.

                Does anyone know what is wrong with the code above that is causing the error?
                Richard Urban

                Grocery Delivery Software for Stores and Entrepreneurs: