# Troubleshooting | Sentry for Xamarin

### [Profiles are not showing up](https://docs.sentry.io/.md#profiles-are-not-showing-up)

If you don't see any profiling data in [sentry.io](https://sentry.io/.md), you can try the following:

* Ensure that [Tracing is enabled](https://docs.sentry.io/platforms/dotnet/guides/xamarin/tracing.md).

* Ensure that the automatic instrumentation is sending performance data to Sentry by going to the **Performance** page in [sentry.io](https://sentry.io/.md).

* If the automatic instrumentation is not sending performance data, try using [custom instrumentation](https://docs.sentry.io/platforms/dotnet/guides/xamarin/tracing/instrumentation/custom-instrumentation.md).

* Enable [debug mode](https://docs.sentry.io/platforms/dotnet/guides/xamarin/configuration/options.md#debug) in the SDK and check the logs.

* If the transactions happen too soon after `Sentry.Init()`, they may not be captured yet. This is because the `ProfilingIntegration()` from `Sentry.Profiling` NuGet package initializes asynchronously by default. If you'd like to initialize it synchronously, set the desired timeout argument, e.g. `options.AddProfilingIntegration(TimeSpan.FromMilliseconds(500))` to wait up to 500 ms for the profiler to start up. Note: this doesn't apply to iOS and Mac Catalyst which use native profiling, are initialized synchronously, and the timeout argument is ignored.

* Maybe you're trying to capture profiles on a platform that is currently **not** supported, notably:

  * .NET Framework; we only support .NET 8.0+
  * Native AOT - this is only supported for iOS and Mac Catalyst (alongside the standard Mono AOT)
  * Android - currently not supported at all

### [`Unknown` frames](https://docs.sentry.io/.md#unknown-frames)

Some frames will show up as `unknown` in the UI. This is because the SDK does not have information about the stack frame. Usually, these are anonymous helper JIT-generated methods and present among `System` stack frames.
