> ## Documentation Index
> Fetch the complete documentation index at: https://ancplua.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# AL0067 - Meter should be registered with AddMeter()

> Unregistered meters will not export metrics

Source: [Al0067UnregisteredMeterAnalyzer.cs](https://github.com/ANcpLua/ANcpLua.Analyzers/blob/main/src/ANcpLua.Analyzers/Analyzers/Al0067UnregisteredMeterAnalyzer.cs)

## Description

A `Meter` that is not registered via `AddMeter()` in the metrics configuration will silently drop all recorded measurements.

## Bad Code

```csharp theme={null}
private static readonly Meter MyMeter = new("MyService.Orders");
// But metrics setup never calls .AddMeter("MyService.Orders")
```

## Good Code

```csharp theme={null}
private static readonly Meter MyMeter = new("MyService.Orders");

// In startup:
builder.Services.AddOpenTelemetry()
    .WithMetrics(m => m.AddMeter("MyService.Orders"));
```

## Properties

* **Category**: Metrics
* **Severity**: Warning
* **Enabled by default**: True
* **Code fix available**: False

## Configuration

```editorconfig theme={null}
dotnet_diagnostic.AL0067.severity = warning
```