Azure Functions: [A]PnPManifest cannot be cast to [B]PnPManifest

I load my PnP Template from a .pnp file, and this works without a problem when executing locally. If I deploy my Azure Function, I get the following error:

[Error] Error Message: [A]PnP.Framework.Provisioning.Connectors.OpenXML.Model.PnPManifest cannot be cast to [B]PnP.Framework.Provisioning.Connectors.OpenXML.Model.PnPManifest. Type A originates from 'PnP.Framework, Version=0.1.109.0, Culture=neutral, PublicKeyToken=null' in the context 'Default' at location 'C:\home\site\wwwroot\bin\PnP.Framework.dll'. Type B originates from 'PnP.Framework, Version=0.1.109.0, Culture=neutral, PublicKeyToken=null' in the context 'Default' at location 'C:\home\site\wwwroot\bin\PnP.Framework.dll'.
[Error] Error while processing dossier: [A]PnP.Framework.Provisioning.Connectors.OpenXML.Model.PnPManifest cannot be cast to [B]PnP.Framework.Provisioning.Connectors.OpenXML.Model.PnPManifest. Type A originates from 'PnP.Framework, Version=0.1.109.0, Culture=neutral, PublicKeyToken=null' in the context 'Default' at location 'C:\home\site\wwwroot\bin\PnP.Framework.dll'. Type B originates from 'PnP.Framework, Version=0.1.109.0, Culture=neutral, PublicKeyToken=null' in the context 'Default' at location 'C:\home\site\wwwroot\bin\PnP.Framework.dll'.
at PnP.Framework.Provisioning.Connectors.OpenXML.PnPPackage.GetXamlSerializedPackagePartValue[T](PackagePart part)
at PnP.Framework.Provisioning.Connectors.OpenXML.PnPPackage.get_Manifest()
at PnP.Framework.Provisioning.Connectors.OpenXML.PnPPackageExtensions.LoadPnPPackage(PnPPackage package)
at PnP.Framework.Provisioning.Connectors.OpenXML.PnPPackageExtensions.UnpackTemplate(MemoryStream stream)
at PnP.Framework.Provisioning.Connectors.OpenXMLConnector..ctor(String packageFileName, FileConnectorBase persistenceConnector, String author, X509Certificate2 signingCertificate, String templateFileName)
at ...

If I switch my code to run from .xml, it works in Azure Functions. Problem seems to happen in this method, but I don’t see why. There are two casts happening… https://github.com/pnp/pnpframework/blob/6b7b45166cf4fd17412fe3dff9ef14a6a1def35d/src/lib/PnP.Framework/Provisioning/Connectors/OpenXML/PnPPackage.cs#L315-L350

[jansenbe]

@YannickRe : been way too busy…so did not have time for this. Feel free to keep bumping it

[czullu]

Hi, you might try to change your csproj of the Azure Function and add this Line “<_FunctionsSkipCleanOutput>true</_FunctionsSkipCleanOutput>”

in here like this:

  <PropertyGroup>
    <TargetFramework>netcoreapp3.1</TargetFramework>
    <AzureFunctionsVersion>v3</AzureFunctionsVersion>
    <_FunctionsSkipCleanOutput>true</_FunctionsSkipCleanOutput>
  </PropertyGroup>

This usually helps to resolve conflicts with classes which the Azure Function Framework uses as well.