Learn how to apply a configured Consul API Gateway to your Kubernetes cluster, review the required fields for rerouting HTTP requests, and troubleshoot an error message.
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# Error Messages
This topic provides information about potential error messages associated with Consul API Gateway. If you receive an error message that does not appear in this section, refer to the following resources:
## Helm installation failed: "no matches for kind"
```log
Error: INSTALLATION FAILED: unable to build kubernetes objects from release manifest: [unable to recognize "": no matches for kind "GatewayClass" in version "gateway.networking.k8s.io/v1alpha2", unable to recognize "": no matches for kind "GatewayClassConfig" in version "api-gateway.consul.hashicorp.com/v1alpha1"]
```
**Conditions:**
Consul API Gateway generates this error when the required CRD files have not been installed in Kubernetes prior to installing Consul API Gateway.
**Impact:**
The installation process typically fails after this error message is generated.
Install the required CRDs. Refer to the [Consul API Gateway installation instructions](/consul/docs/api-gateway/install#installation) for instructions.