Unable to get property 'displayDialogAsync' of undefined or null reference

[alirezastack]

I have used office js helpers module to implement login with Google and Facebook. The functionality works as expected in Office Online, but when I run the addin inside of Microsoft Word 2016 in Windows 10 it gives an error.

Expected Behavior

Open a dialog box for authentication

Current Behavior

gives the below error:
Unable to get property 'displayDialogAsync' of undefined or null reference

Steps to Reproduce, or Live Example

Implement login with Google using office js helpers and then side-load your addin inside of Word 2016 by clicking on Login with Google you would see the error and modal will not get opened.

Context

login with Google/Facebook in word MAC/Windows

Your Environment

• Platform: PC desktop, Mac
• Host Word
• Office version number: 1.1
• Operating System: Mac OS Mojave, Windows 10

Useful logs

Unable to get property 'displayDialogAsync' of undefined or null reference

[Zlatkovsky]

From what you're describing, it sounds like it's an unpatched version of Office 2016 MSI. You need a version that supports DialogApi 1.1. See more at https://docs.microsoft.com/en-us/office/dev/add-ins/reference/requirement-sets/dialog-api-requirement-sets. You can either make this requirement set be a hard requirement in the manifest, or something that you query at runtime using Office.context.requirements.isSetSupported.

Closing the issue, since it's effectively by-design/by-limitation-of-version.