CODEWITHSUNDEEP
c#azure-functions
user2197446
user2197446

Reputation: 1146

Azure function fails Value cannot be null. Parameter name: value

I've created an Azure function and tested it locally in Visual Studio without issue. I just published the function to Azure and now when I run it I get this error:

2019-11-26T20:41:11.822 [Error] Executed 'PullAffiliationsFunction' (Failed, Id=13a5b787-db22-4b04-96ba-f5718c36aa75)
Value cannot be null.
Parameter name: value

I don't have any parameters named value in my function. I see no stack trace to give me more information about what is causing this error. Did I miss a configuration setting somewhere? I published directly from Visual Studio so I would expect it would publish everything. How would you debug this?

Upvotes: 2

Views: 4017

Answers (1)

Ankit Kumar
Ankit Kumar

Reputation: 508

If you get this exception as part of the Executed message, it's most likely thrown by your function code. Do you have the full log entry for that? It may include a stack trace as well.

The local settings and environment variables (from local.settings.json) actually do not automatically get pushed to Azure on publish.

I have seen this exception commonly when one may have forgotten to set an environment variable as an App Setting or a connection string. Did you set all the environment variables you used locally in your Azure function app through Application Settings or configuration in your app?

Upvotes: 4

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