Splunk AppDynamics

Xamarin Forms Network Requests Automatic Instrumentation and Tracking

Osama_Abbas
Explorer

I am trying to instrument a Xamarin Forms app with the following configuration:.

var config = AppDynamics.Agent.AgentConfiguration.Create("<EUM_APP_KEY>");
config.CollectorURL = "http://<IP_Address>:7001";
config.CrashReportingEnabled = true;
config.ScreenshotsEnabled = true;
config.LoggingLevel = AppDynamics.Agent.LoggingLevel.All;
AppDynamics.Agent.Instrumentation.EnableAggregateExceptionHandling = true;
AppDynamics.Agent.Instrumentation.InitWithConfiguration(config);

In the documentation, it is stated that: The Xamarin Agent does not support automatic instrumentation for network requests made with any library. You will need to manually instrument HTTP network requests regardless of what library is used. Mobile RUM Supported Environments (appdynamics.com)

Yet, in these links Customize the Xamarin Instrumentation (appdynamics.com) and Instrument Xamarin Applications (appdynamics.com) I see that I can use AppDynamics.Agent.AutoInstrument.Fody package to automatically instrument the network requests.

I tried to follow the approach of automatic instrumentation using both AppDynamics.Agent and AppDynamics.Agent.AutoInstrument.Fody packages as per the docs, but I get the below error when building the project:

MSBUILD : error : Fody: An unhandled exception occurred:
    MSBUILD : error : Exception:
    MSBUILD : error : Failed to execute weaver /Users/username/.nuget/packages/appdynamics.agent.autoinstrument.fody/2023.12.0/build/../weaver/AppDynamics.Agent.AutoInstrument.Fody.dll
    MSBUILD : error : Type:
    MSBUILD : error : System.Exception
    MSBUILD : error : StackTrace:
    MSBUILD : error :   at InnerWeaver.ExecuteWeavers () [0x0015a] in C:\projects\fody\FodyIsolated\InnerWeaver.cs:222
    MSBUILD : error :   at InnerWeaver.Execute () [0x000fe] in C:\projects\fody\FodyIsolated\InnerWeaver.cs:112
    MSBUILD : error : Source:
    MSBUILD : error : FodyIsolated
    MSBUILD : error : TargetSite:
    MSBUILD : error : Void ExecuteWeavers()
    MSBUILD : error : Sequence contains more than one matching element
    MSBUILD : error : Type:
    MSBUILD : error : System.InvalidOperationException
    MSBUILD : error : StackTrace:
    MSBUILD : error :   at System.Linq.Enumerable.Single[TSource] (System.Collections.Generic.IEnumerable`1[T] source, System.Func`2[T,TResult] predicate) [0x00045] in /Users/builder/jenkins/workspace/build-package-osx-mono/2020-02/external/bockbuild/builds/mono-x64/external/corefx/src/System.Linq/src/System/Linq/Single.cs:71
    MSBUILD : error :   at AppDynamics.Agent.AutoInstrument.Fody.ImportedReferences.LoadTypes () [0x000f1] in /opt/buildAgent/work/2ab48d427bca2ab0/sdk/AppDynamics.Agent.AutoInstrument.Fody/ImportedReferences.cs:117
    MSBUILD : error :   at AppDynamics.Agent.AutoInstrument.Fody.ImportedReferences..ctor (ModuleWeaver weaver) [0x0000d] in /opt/buildAgent/work/2ab48d427bca2ab0/sdk/AppDynamics.Agent.AutoInstrument.Fody/ImportedReferences.cs:90
    MSBUILD : error :   at ModuleWeaver.Execute () [0x00000] in /opt/buildAgent/work/2ab48d427bca2ab0/sdk/AppDynamics.Agent.AutoInstrument.Fody/ModuleWeaver.cs:17
    MSBUILD : error :   at InnerWeaver.ExecuteWeavers () [0x000b7] in C:\projects\fody\FodyIsolated\InnerWeaver.cs:204
    MSBUILD : error : Source:
    MSBUILD : error : System.Core
    MSBUILD : error : TargetSite:
    MSBUILD : error : Mono.Cecil.MethodDefinition Single[MethodDefinition](System.Collections.Generic.IEnumerable`1[Mono.Cecil.MethodDefinition], System.Func`2[Mono.Cecil.MethodDefinition,System.Boolean])

Any help please?

Thank you

Labels (1)
Tags (3)
0 Karma

iamryan
Community Manager
Community Manager

Hi @Osama.Abbas,

I'm still waiting to hear back from our Docs team. Have you found a solution or any new info in the meantime?

0 Karma

iamryan
Community Manager
Community Manager

Hi @Osama.Abbas,

I shared your feedback with the Docs team! If I find any other information around your question, I'll share it here. 

Career Survey
First 500 qualified respondents will receive a $20 gift card! Tell us about your professional Splunk journey.
Get Updates on the Splunk Community!

.conf25 Global Broadcast: Don’t Miss a Moment

Hello Splunkers, .conf25 is only a click away.  Not able to make it to .conf25 in person? No worries, you can ...

Observe and Secure All Apps with Splunk

 Join Us for Our Next Tech Talk: Observe and Secure All Apps with SplunkAs organizations continue to innovate ...

What's New in Splunk Observability - August 2025

What's New We are excited to announce the latest enhancements to Splunk Observability Cloud as well as what is ...