# Class InitialActivityNotFoundException

OptimaJet.Workflow.Core.Fault.InitialActivityNotFoundException

Represents an exception thrown when the initial activity cannot be found.

Namespace: [OptimaJet.Workflow.Core.Fault](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Fault/)

```csharp
public class InitialActivityNotFoundException : Exception, ISerializable
```

## Type Hierarchy

-   [Exception](https://learn.microsoft.com/dotnet/api/system.exception)
    -   InitialActivityNotFoundException Current type
        -   Implemented interfaces
            -   [ISerializable](https://learn.microsoft.com/dotnet/api/system.runtime.serialization.iserializable)

[Previous ImpossibleToUpdateSchemeTagsException](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Fault/ImpossibleToUpdateSchemeTagsException/) [Next InvalidCommandException](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Fault/InvalidCommandException/)