Microsoft.Azure.WebJobs.Script: Error configuring services in an external startup class. Azure.Storage.Blobs: Value cannot be null. (Parameter 'connectionString').

Question

I have published a function from Visual Studio 22 but I get two errors. I go to the configuration in Function App to see the value of AzureWebJobsStorage. In this place I saw AzureWebJobsStorage 's value and It is same connectionString of my Visual Studio solution (the string I get from Storage Account > Access keys).

I don't know why AzureWebJobsStorage return a fail: Microsoft.Azure.WebJobs.Script: Error configuring services in an external startup class. Azure.Storage.Blobs: Value cannot be null. (Parameter 'connectionString').

Answer 1

The solution: you have to go to Function Api > Environment variables > App settings and add the variables that we have in the project in the local.settings.json file.