Cannot read properties of undefined (reading 'version') after Portal upgrade to 10.9.1

[evemarwernick]

Hi,

After upgrade Portal for ArcGIS and ArcGIS Server from version 10.8.1 to 10.9.1, Apps built as 'Web Map Application' stopped work with a message: Cannot read properties of undefined (reading 'version'). You can see the result in this link (wich was working before upgrade): https://paranainterativo.pr.gov.br/portal/apps/webappviewer/index.html?id=d911968785f047acb4cb3b4ed2...

Any help will be appreciated.

Thanks

[LanceKirby2 · Accepted solution]

https://community.esri.com/t5/arcgis-enterprise-questions/after-portal-update-to-10-9-webappbuilder-...