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I have created a lightning component. I drag the custom Lightning component from the left side to the desired section of the Opportunity Record Page using Lightning App Builder. I save the changes and activate the new changes. I open the opportunity page my component is there at desired location. But when I click Create a Task under Activity Tab as shown below enter image description here

I am getting the following error

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Uncaught Assertion Failed!: Descriptor for Config required for registration : undefined [Error creating components in runtime_sales_activities:composerPageBlockSectionEdit] Callback failed: serviceComponent://ui.force.components.controllers.recordLayoutBroker.RecordLayoutBrokerController/ACTION$getLayout throws at https://My-Test-Domain-dev-ed.lightning.force.com/auraFW/javascript/ra1ulv_rPNMd9ZOOtLxgew/aura_prod.js:8:15 BH.log()@https://My-Test-Domain-dev-ed.lightning.force.com/auraFW/javascript/ra1ulv_rPNMd9ZOOtLxgew/aura_prod.js:214:393 BH.assert()@https://My-Test-Domain-dev-ed.lightning.force.com/auraFW/javascript/ra1ulv_rPNMd9ZOOtLxgew/aura_prod.js:211:43 $.B.assert()@https://My-Test-Domain-dev-ed.lightning.force.com/auraFW/javascript/ra1ulv_rPNMd9ZOOtLxgew/aura_prod.js:825:279 U.bc()@https://My-Test-Domain-dev-ed.lightning.force.com/auraFW/javascript/ra1ulv_rPNMd9ZOOtLxgew/aura_prod.js:530:88 U.vb()@https://My-Test-Domain-dev-ed.lightning.force.com/auraFW/javascript/ra1ulv_rPNMd9ZOOtLxgew/aura_prod.js:556:41 U.Od()@https://My-Test-Domain-dev-ed.lightning.force.com/auraFW/javascript/ra1ulv_rPNMd9ZOOtLxgew/aura_prod.js:534:290 Object.createComponentFromConfigWithErrorHandling()@https://My-Test-Domain-dev-ed.lightning.force.com/libraries/force/componentLibrary/components.js:6:20

enter image description here

I don't know whats is going wrong.

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  • I already have some weird errors too when I had some errors in one my lightning components displayed in a lightning page. The errors raised didn't have anything related to the real error. Did you try to add a basic test lightning component with nothing more than a hello world inside the page? To check if it works?
    – Martin Lezer
    Commented Sep 20, 2017 at 6:39
  • @Martin Lezer I made a hello world component and It works fine?
    – ozil
    Commented Sep 20, 2017 at 7:43
  • What happens if you insert your custom component inside an empty Lightning application?
    – Martin Lezer
    Commented Sep 20, 2017 at 7:50
  • @MartinLezer I inserted in empty lightning app it works fine
    – ozil
    Commented Sep 20, 2017 at 8:59
  • Do you use any external API's which are not listed as compatible with the Lightning Locker Service?
    – Martin Lezer
    Commented Sep 20, 2017 at 9:05

1 Answer 1

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OK, I found the problem, issue was with my external library files, salesforce doesn't allow to add prototype toarray data type. Removing that function from prototype and making it a separate function resolve my problem.

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