Deployment Failure: Oryx build fails with `System.ArgumentNullException (Parameter 'node')` when deploying Strapi demo package

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🚨 Deployment Failure: Oryx build fails with System.ArgumentNullException (Parameter 'node') when deploying Strapi demo package

Description

I'm trying to deploy the official Strapi demo package provided by Azure, but since this week the deployment has started failing during the Oryx build process with an unexpected System.ArgumentNullException error.

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Package used

https://github.com/Azure-Samples/strapi-on-appservice-sample/blob/main/strapi-packages/strapi-on-appservice-demo.zip

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Command used to deploy

az webapp deployment source config-zip   --resource-group BB-NONPROD-INV-BR-CMS-PBB   --name strapi-cms-pbb   --src strapi-on-appservice-demo.zip

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Command error extracted from the log

oryx build /tmp/zipdeploy/extracted -o /home/site/wwwroot   --platform nodejs --platform-version 22   -p virtualenv_name= --log-file /tmp/build-debug.log   -i /tmp/8de1c5bf7e31248 -p compress_node_modules=tar-gz   | tee /tmp/oryx-build.log

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Build Context

Key	Value
Operation performed by	Microsoft Oryx (GitHub)
Oryx Version	0.2.20251022.1+bef98bc7139feefaa74be16de9d835e2c85385d4
Build Operation ID	0a18ce444f574a36
Repository Commit	5edfb92e-986a-48f9-b399-e99dd6feabd8
OS Type	bookworm
Image Type	githubactions
Platform	nodejs@22

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Error Log

Error: Oops... An unexpected error has occurred.
Error: System.ArgumentNullException: Value cannot be null. (Parameter 'node')
   at System.ArgumentNullException.Throw(String paramName)
   at System.ArgumentNullException.ThrowIfNull(Object argument, String paramName)
   at System.Xml.XPath.Extensions.XPathSelectElements(XNode node, String expression, IXmlNamespaceResolver resolver)
   at Microsoft.Oryx.BuildScriptGenerator.SdkStorageVersionProviderBase.GetAvailableVersionsFromStorage(String platformName)
   at Microsoft.Oryx.BuildScriptGenerator.Node.NodeSdkStorageVersionProvider.GetVersionInfo()
   at Microsoft.Oryx.BuildScriptGenerator.Node.NodeVersionProvider.GetVersionInfo()
   at Microsoft.Oryx.BuildScriptGenerator.Node.NodePlatform.GetMaxSatisfyingVersionAndVerify(String version)
   at Microsoft.Oryx.BuildScriptGenerator.Node.NodePlatform.ResolveVersions(RepositoryContext context, PlatformDetectorResult detectorResult)
   at Microsoft.Oryx.BuildScriptGenerator.Node.NodePlatform.Detect(RepositoryContext context)
   at Microsoft.Oryx.BuildScriptGenerator.DefaultPlatformsInformationProvider.GetPlatformsInfo(RepositoryContext context)
   at Microsoft.Oryx.BuildScriptGenerator.DefaultBuildScriptGenerator.GenerateBashScript(BuildScriptGeneratorContext context, String& script, List checkerMessageSink)
   at Microsoft.Oryx.BuildScriptGeneratorCli.BuildScriptGenerator.TryGenerateScript(...)

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Steps to Reproduce

1. Download the demo package from the official Azure sample repository:
   👉 strapi-on-appservice-demo.zip
2. Deploy it to Azure App Service using the default configuration.
3. Observe the Oryx build step — it fails with the error above.

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Expected Behavior

The Strapi demo package should deploy successfully, as it did previously.

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Actual Behavior

The deployment fails with:

System.ArgumentNullException: Value cannot be null. (Parameter 'node')

during the Oryx build step.

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Additional Context

• This issue started occurring recently — deployments using the same package worked fine before.
• It seems related to the latest Oryx release (20251022.1).