# TraconCompilationException

> Tracon documentation. Tracon is a .NET package family that adds a control
> plane on Microsoft Agent Framework, published as NuGet packages that run
> inside your own ASP.NET Core application.
>
> Page: https://tracon.dev/api/tracon.traconcompilationexception/
> Summary: TraconCompilationException: Thrown when an agent definition cannot be turned into a runnable agent.

<div class="api-provenance">Namespace Tracon · Assembly <code>Tracon.Abstractions.dll</code></div>

Thrown when an agent definition cannot be turned into a runnable agent.

```csharp
public sealed class TraconCompilationException : TraconException, ISerializable
```

<dl class="api-relations"><dt>Inheritance</dt><dd><a href="https://learn.microsoft.com/dotnet/api/system.object">object</a> ← <a href="https://learn.microsoft.com/dotnet/api/system.exception">Exception</a> ← <a href="/api/tracon.traconexception/">TraconException</a> ← <a href="/api/tracon.traconcompilationexception/">TraconCompilationException</a></dd><dt>Implements</dt><dd><a href="https://learn.microsoft.com/dotnet/api/system.runtime.serialization.iserializable">ISerializable</a></dd><dt>Inherited Members</dt><dd><a href="/api/tracon.traconexception/#Tracon_TraconException_ErrorType">TraconException.ErrorType</a>, <a href="https://learn.microsoft.com/dotnet/api/system.exception.getbaseexception">Exception.GetBaseException()</a>, <a href="https://learn.microsoft.com/dotnet/api/system.exception.tostring">Exception.ToString()</a>, <a href="https://learn.microsoft.com/dotnet/api/system.exception.gettype">Exception.GetType()</a>, <a href="https://learn.microsoft.com/dotnet/api/system.exception.targetsite">Exception.TargetSite</a>, <a href="https://learn.microsoft.com/dotnet/api/system.exception.message">Exception.Message</a>, <a href="https://learn.microsoft.com/dotnet/api/system.exception.data">Exception.Data</a>, <a href="https://learn.microsoft.com/dotnet/api/system.exception.innerexception">Exception.InnerException</a>, <a href="https://learn.microsoft.com/dotnet/api/system.exception.helplink">Exception.HelpLink</a>, <a href="https://learn.microsoft.com/dotnet/api/system.exception.source">Exception.Source</a>, <a href="https://learn.microsoft.com/dotnet/api/system.exception.hresult">Exception.HResult</a>, <a href="https://learn.microsoft.com/dotnet/api/system.exception.stacktrace">Exception.StackTrace</a>, <a href="https://learn.microsoft.com/dotnet/api/system.object.gettype">object.GetType()</a>, <a href="https://learn.microsoft.com/dotnet/api/system.object.tostring">object.ToString()</a>, <a href="https://learn.microsoft.com/dotnet/api/system.object.equals#system-object-equals(system-object)">object.Equals(object?)</a>, <a href="https://learn.microsoft.com/dotnet/api/system.object.equals#system-object-equals(system-object-system-object)">object.Equals(object?, object?)</a>, <a href="https://learn.microsoft.com/dotnet/api/system.object.referenceequals">object.ReferenceEquals(object?, object?)</a>, <a href="https://learn.microsoft.com/dotnet/api/system.object.gethashcode">object.GetHashCode()</a></dd></dl>

## Remarks

The most common cause is a tool name in the definition that is not registered
in code. That case is never skipped silently — an agent running with an unknown
tool is an agent that does not do what the user expects.

## Constructors

### <a id="Tracon_TraconCompilationException__ctor"></a> TraconCompilationException\(\)

Creates a new compilation error.

```csharp
public TraconCompilationException()
```

### <a id="Tracon_TraconCompilationException__ctor_System_String_"></a> TraconCompilationException\(string\)

Creates a new compilation error.

```csharp
public TraconCompilationException(string message)
```

#### Parameters

`message` [string](https://learn.microsoft.com/dotnet/api/system.string)

The error message.

### <a id="Tracon_TraconCompilationException__ctor_System_String_System_Exception_"></a> TraconCompilationException\(string, Exception\)

Creates a new compilation error.

```csharp
public TraconCompilationException(string message, Exception innerException)
```

#### Parameters

`message` [string](https://learn.microsoft.com/dotnet/api/system.string)

The error message.

`innerException` [Exception](https://learn.microsoft.com/dotnet/api/system.exception)

The underlying error.

## Fields

### <a id="Tracon_TraconCompilationException_CompilationFailedErrorType"></a> CompilationFailedErrorType

The stable value written to [TraconException.ErrorType](/api/tracon.traconexception/#Tracon_TraconException_ErrorType).

```csharp
public const string CompilationFailedErrorType = "compilation_failed"
```

#### Field Value

 [string](https://learn.microsoft.com/dotnet/api/system.string)

## Properties

### <a id="Tracon_TraconCompilationException_AgentName"></a> AgentName

Gets the name of the agent that failed to compile.

```csharp
public string? AgentName { get; init; }
```

#### Property Value

 [string](https://learn.microsoft.com/dotnet/api/system.string)?

### <a id="Tracon_TraconCompilationException_ErrorType"></a> ErrorType

Gets the stable error type name written to the run record.

```csharp
public override string ErrorType { get; }
```

#### Property Value

 [string](https://learn.microsoft.com/dotnet/api/system.string)

#### Remarks

Defaults to the full name of the exception type, so today's behaviour does
not change. A derived type overrides this member when the record has to be
machine readable — for example [TraconContentFilteredException](/api/tracon.traconcontentfilteredexception/)
writes `content_filtered`. Reports and alert rules can rely on this
stable name instead of an assembly name.

The value is written to `RunError.Type` and **carries no secret**.