# Class InvalidJsonParameterValueException OptimaJet.Workflow.Core.Fault.InvalidJsonParameterValueException Signals that a JSON parameter value is invalid or cannot be parsed for the current operation. Namespace: [OptimaJet.Workflow.Core.Fault](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Fault/) ```csharp public class InvalidJsonParameterValueException : Exception, ISerializable ``` ## Type Hierarchy - [Exception](https://learn.microsoft.com/dotnet/api/system.exception) - InvalidJsonParameterValueException Current type - Implemented interfaces - [ISerializable](https://learn.microsoft.com/dotnet/api/system.runtime.serialization.iserializable) ## Constructors `public InvalidJsonParameterValueException(string message, params object[] args)` Initializes a new instance of the [InvalidJsonParameterValueException](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Fault/InvalidJsonParameterValueException/) class with a formatted message. ### Parameters | Name | Type | Description | | --- | --- | --- | | `message` | `String` | A composite format string for the exception message. | | `args` | `Object[]` | The arguments used to format `message`. | [Previous InvalidCommandException](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Fault/InvalidCommandException/) [Next InvalidParameterValueException](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Fault/InvalidParameterValueException/)