Uncaught ReferenceError: EnsureScript is not defined for PeoplePicker in SharePoint Custom Form

Question

When I implement the People Picker control on a custom page, I get the "Uncaught ReferenceError: EnsureScript is not defined" Can someone help?

// Render and initialize the client-side People Picker.
function initializePeoplePicker(peoplePickerElementId) {

// Create a schema to store picker properties, and set the properties.
var schema = {};
schema['PrincipalAccountType'] = 'User,DL,SecGroup,SPGroup';
schema['SearchPrincipalSource'] = 15;
schema['ResolvePrincipalSource'] = 15;
schema['AllowMultipleValues'] = true;
schema['MaximumEntitySuggestions'] = 50;
schema['Width'] = '280px';

// Render and initialize the picker. 
// Pass the ID of the DOM element that contains the picker, an array of initial
// PickerEntity objects to set the picker value, and a schema that defines
// picker properties.
this.SPClientPeoplePicker_InitStandaloneControlWrapper(peoplePickerElementId, null, schema);

}

Answer 1

Hi @Michael Williams ,
Here is the code snippet about adding Client People Picker in SharePoint Hosted app for your reference, I would suggest you to check:

In Default.aspx, Reference file under PlaceHolderMain:
145654-default.txt

In App.js, write Script below, not use this, it might cause xxx object is not defined:
145678-app.txt

Here is the document for reference
https://learn.microsoft.com/en-us/sharepoint/dev/sp-add-ins/use-the-client-side-people-picker-control-in-sharepoint-hosted-sharepoint-add-in

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