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Daniel1175's avatar
Daniel1175
Copper Contributor
Jul 12, 2022

WebView2 external dependency cannot be installed from an MSIX package on a Windows 10 target machine

Hi, I have built an MSIX package that includes https://docs.microsoft.com/en-us/uwp/schemas/appxpackage/uapmanifestschema/element-win32dependencies-externaldependency using Microsoft Packaging Too...
dependency
MSIX
Aditi_Narvekar's avatar
Aditi_Narvekar
Icon for Microsoft rankMicrosoft
Jul 26, 2022
Can you please submit a Feedback hub? It's the best way for our team to get logs and troubleshoot.
  • Daniel1175's avatar
    Daniel1175
    Copper Contributor
    Jul 28, 2022

    Aditi_Narvekar I really think there is no other proper channel than the current one to submit this issue. It's an MSIX deployment issue and this is why I have posted it on MSIX community.

    In case this helps, here it is a download link for an MSIX package that easily replicate this problem.


    https://drive.google.com/file/d/1gJf1C9TdZQf5_mnuHgNlfA_47vq4CRzw/view?usp=sharing 

    You should just try to install it on a Windows 10 test machine with no WebView previously installed. Also do not forget to manually install the certificate the sample MSIX is signed with under the "Trusted Root Certification Authorities" store on your local machine. Same steps like the ones exposed here:

    https://www.advancedinstaller.com/install-test-certificate-from-msix.html 

    I think this is all you need to replicate and investigate the issue, generate whatever logs do you need, etc.

    Let me know if you can have a look on this.

    • MikeH's avatar
      MikeH
      Brass Contributor
      Jul 28, 2022

      Daniel1175 This error can happen if you re-sign the installer or pass incorrect parameters to it. See:

       

      https://github.com/MicrosoftEdge/WebView2Feedback/issues/1582

       

      Are you re-signing the installer with your own certificate?

       

      • Daniel1175's avatar
        Daniel1175
        Copper Contributor
        Aug 01, 2022

        MikeH Mike, I am not re-signing the WebView2 installer nor do I pass any command line arguments to it.

        To recap, the WebView2 is specified in the manifest of an MSIX package as a dependency. This means that when the MSIX package is installed the Microsoft's App Installer tool will download the WebView2 installer (from Microsoft's hosted repository) and launch it for installation.

        The WebView2 installer download and install operation is solely handled by the Microsoft App Installer app. So I think this issue is on the Microsoft App Installer app side.

        Once again the MSIX package (you can download and test it from my previous post) is built as per the specs of https://docs.microsoft.com/en-us/uwp/schemas/appxpackage/uapmanifestschema/element-win32dependencies-externaldependency.

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