Getting error System.UriFormatException in Azure Function and unable to execute it

Question

Getting below error while executing Service bus trigger Azure function and unable to start Azure Function on Azure portal. Can anyone help me to resolve this issue or let me know what is causing this error?

System.UriFormatException:    

at System.Uri.CreateThis (System.Private.Uri, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a)    at System.Uri..ctor (System.Private.Uri, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a)    at Crawford.Fabric.Helpers.Clients.Core.Extensions+<>c__DisplayClass3_0`3.<AddApiClient>b__0 (Crawford.Fabric.Helpers.Clients.Core, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null)    at Microsoft.Extensions.Http.DefaultHttpClientFactory.CreateClient (Microsoft.Extensions.Http, Version=6.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60)    at Microsoft.Extensions.DependencyInjection.HttpClientBuilderExtensions.AddTransientHelper (Microsoft.Extensions.Http, Version=6.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60)    at Microsoft.Extensions.DependencyInjection.HttpClientBuilderExtensions+<>c__DisplayClass13_0`2.<AddTypedClientCore>b__0 (Microsoft.Extensions.Http, Version=6.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60)    at DryIoc.Microsoft.DependencyInjection.DryIocAdapter+<>c__DisplayClass3_0.<RegisterDescriptor>b__1 (Microsoft.Azure.WebJobs.Script.WebHost, Version=4.22.0.0, Culture=neutral, PublicKeyToken=null: /_/src/WebJobs.Script.WebHost/DependencyInjection/DryIoc/DryIocAdapter.cs:169)    at DryIoc.Registrator+<>c__DisplayClass27_0.<RegisterDelegate>b__0 (Microsoft.Azure.WebJobs.Script.WebHost, Version=4.22.0.0, Culture=neutral, PublicKeyToken=null: /_/src/WebJobs.Script.WebHost/DependencyInjection/DryIoc/Container.cs:4550)    at DryIoc.Container.DryIoc.IResolver.Resolve (Microsoft.Azure.WebJobs.Script.WebHost, Version=4.22.0.0, Culture=neutral, PublicKeyToken=null: /_/src/WebJobs.Script.WebHost/DependencyInjection/DryIoc/Container.cs:308)    at lambda_method410 (Anonymously Hosted DynamicMethods Assembly, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null)    at DryIoc.Container.DryIoc.IResolver.Resolve (Microsoft.Azure.WebJobs.Script.WebHost, Version=4.22.0.0, Culture=neutral, PublicKeyToken=null: /_/src/WebJobs.Script.WebHost/DependencyInjection/DryIoc/Container.cs:308)    at DryIoc.Container.ResolveAndCacheDefaultFactoryDelegate (Microsoft.Azure.WebJobs.Script.WebHost, Version=4.22.0.0, Culture=neutral, PublicKeyToken=null: /_/src/WebJobs.Script.WebHost/DependencyInjection/DryIoc/Container.cs:208)    at DryIoc.Container.DryIoc.IResolver.Resolve (Microsoft.Azure.WebJobs.Script.WebHost, Version=4.22.0.0, Culture=neutral, PublicKeyToken=null: /_/src/WebJobs.Script.WebHost/DependencyInjection/DryIoc/Container.cs:195)    at Microsoft.Azure.WebJobs.Script.WebHost.DependencyInjection.ScopedServiceProvider.GetService (Microsoft.Azure.WebJobs.Script.WebHost, Version=4.22.0.0, Culture=neutral, PublicKeyToken=null: /_/src/WebJobs.Script.WebHost/DependencyInjection/ScopedServiceProvider.cs:25)    at Microsoft.Extensions.DependencyInjection.ActivatorUtilities.GetService (Microsoft.Extensions.DependencyInjection.Abstractions, Version=6.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60)    at lambda_method365 (Anonymously Hosted DynamicMethods Assembly, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null)    at Microsoft.Azure.WebJobs.Host.Executors.DefaultJobActivator.CreateInstance (Microsoft.Azure.WebJobs.Host, Version=3.0.37.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35: D:\a\_work\1\s\src\Microsoft.Azure.WebJobs.Host\Executors\DefaultJobActivator.cs:37)    at Microsoft.Azure.WebJobs.Host.Executors.DefaultJobActivator.CreateInstance (Microsoft.Azure.WebJobs.Host, Version=3.0.37.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35: D:\a\_work\1\s\src\Microsoft.Azure.WebJobs.Host\Executors\DefaultJobActivator.cs:32)    at Microsoft.Azure.WebJobs.Host.Executors.ActivatorInstanceFactory`1+<>c__DisplayClass1_1.<.ctor>b__0 (Microsoft.Azure.WebJobs.Host, Version=3.0.37.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35: D:\a\_work\1\s\src\Microsoft.Azure.WebJobs.Host\Executors\ActivatorInstanceFactory.cs:20)    at Microsoft.Azure.WebJobs.Host.Executors.ActivatorInstanceFactory`1.Create (Microsoft.Azure.WebJobs.Host, Version=3.0.37.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35: D:\a\_work\1\s\src\Microsoft.Azure.WebJobs.Host\Executors\ActivatorInstanceFactory.cs:26)    at Microsoft.Azure.WebJobs.Host.Executors.FunctionInvoker`2.CreateInstance (Microsoft.Azure.WebJobs.Host, Version=3.0.37.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35: D:\a\_work\1\s\src\Microsoft.Azure.WebJobs.Host\Executors\FunctionInvoker.cs:44)    at Microsoft.Azure.WebJobs.Host.Executors.FunctionExecutor+ParameterHelper.Initialize (Microsoft.Azure.WebJobs.Host, Version=3.0.37.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35: D:\a\_work\1\s\src\Microsoft.Azure.WebJobs.Host\Executors\FunctionExecutor.cs:792)    at Microsoft.Azure.WebJobs.Host.Executors.FunctionExecutor+<TryExecuteAsync>d__18.MoveNext (Microsoft.Azure.WebJobs.Host, Version=3.0.37.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35: D:\a\_work\1\s\src\Microsoft.Azure.WebJobs.Host\Executors\FunctionExecutor.cs:104)

Answer 1

@Hiral Jariwala Thanks for reaching out. As per the error message indicates that there is an issue with the URI format. It seems that the URI format is not correct, and the system is unable to create a URI object. I don't see the full stack track to pinpoint the exact line number in your code. Can you please confirm if you see only the above exception trace or there is full error exception.

I will suggest to review the application insights log to get the full exception message so it can point to the line number in your code which throws the exception. Further you can review the Diagnose and solve problems blade on your function app to know more details on the exception and the action plan if any to resolve the issue.