This is an invalid xsi:type 'http://schemas.microsoft.com/office/taskpaneappversionoverrides:Project'

Question

I have used yeoman generator and built the MS Project Add-in using Angular Framework. Now I want to upload the manifest in Office 365 Admin portal to make it available within our organization.

When I run the Office toolbox aka office validator . I am getting the following error and ended up with validation error.

XML Schema Violation: Your manifest does not adhere to the current set of XML schema definitions for Office Add-in manifests. - Details: This is an invalid xsi:type 'http://schemas.microsoft.com/office/taskpaneappversionoverrides:Project'.

I have tried generating a sample project using the latest version of yo office which is also failed in validation.

yo --version
3.1.0

Require help on this.

Answer 1

I have interacted with MSFT support team. After a good long conversation I finally figured out yeoman generated XML is not accepted in App source due to policy violations and overrides of element used.

Below is the simple approach of Manifest If any one wants to publish their add-ins.

<?xml version="1.0" encoding="UTF-8"?>
<OfficeApp xmlns="http://schemas.microsoft.com/office/appforoffice/1.1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="TaskPaneApp">
  <!-- IMPORTANT! Id must be unique for your add-in, if you reuse this manifest ensure that you change this id to a new GUID. Add your own below -->
  <Id>your Guid</Id>
  <!--Version. Updates from the store only get triggered if there is a version change. -->
  <Version>1.0.0.0</Version>
  <ProviderName>Your Company name</ProviderName>
  <DefaultLocale>en-US</DefaultLocale>
  <!-- The display name of your add-in. Used on the store and various places of the Office UI such as the add-ins dialog. -->
  <DisplayName DefaultValue="Add-in"/>
  <Description
    DefaultValue="Short Description"/>
  <!-- Icon for your add-in. Used on installation screens and the add-ins dialog. -->
  <IconUrl DefaultValue="Iconurl.com"/>
  <HighResolutionIconUrl DefaultValue="Iconurl.com"/>
  <SupportUrl DefaultValue="https://yourcompany.com/help"/>
  <AppDomains>
    <AppDomain>yourcompany.com</AppDomain>
  </AppDomains>
  <Hosts>
    <Host Name="Project"/>
  </Hosts>
  <DefaultSettings>
    <SourceLocation DefaultValue="https://yourcompany/index.html"/>
  </DefaultSettings>
  <Permissions>ReadWriteDocument</Permissions>
 </OfficeApp>

Please read the comments for better understanding. Hope it will help someone who wants to publish it to AppSource. Thanks