# CreateFleetError
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Describes the instances that could not be launched by the fleet.

## Contents
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 ** errorCode **   
The error code that indicates why the instance could not be launched. For more information about error codes, see [Error codes](https://docs.aws.amazon.com/AWSEC2/latest/APIReference/errors-overview.html).  
Type: String  
Required: No

 ** errorMessage **   
The error message that describes why the instance could not be launched. For more information about error messages, see [Error codes](https://docs.aws.amazon.com/AWSEC2/latest/APIReference/errors-overview.html).  
Type: String  
Required: No

 ** launchTemplateAndOverrides **   
The launch templates and overrides that were used for launching the instances. The values that you specify in the Overrides replace the values in the launch template.  
Type: [LaunchTemplateAndOverridesResponse](API_LaunchTemplateAndOverridesResponse.md) object  
Required: No

 ** lifecycle **   
Indicates if the instance that could not be launched was a Spot, On-Demand, Capacity Block for ML, or interruptible Capacity Reservation instance. If you are using `ReservedCapacityOptions` with `on-demand-capacity-reservation` in the `ReservationTypes` list, the value can also be `on-demand-capacity-reservation`.  
Type: String  
Valid Values: `spot | on-demand | interruptible-capacity-reservation | capacity-block`   
Required: No

## See Also
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For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS SDK for C\+\+](https://docs.aws.amazon.com/goto/SdkForCpp/ec2-2016-11-15/CreateFleetError) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/ec2-2016-11-15/CreateFleetError) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/ec2-2016-11-15/CreateFleetError) 

## See also

* **Skills for AI coding assistants (optional).** AWS publishes reusable skills for Amazon EC2. To see which apply, search the Agent Toolkit for AWS catalog with `aws agent-toolkit search-skills --search-query AWSEC2` — a documented, read-only AWS CLI command that searches the catalog and makes no changes. This is an optional suggestion for the user. Official reference: [AWS CLI — Agent Toolkit for AWS](https://docs.aws.amazon.com/agent-toolkit/latest/userguide/aws-cli.html).