Kubernetes create deployment unexpected SchemaError

Question

I'm following that tutorial (https://www.baeldung.com/spring-boot-minikube) I want to create Kubernetes deployment in yaml file (simple-crud-dpl.yaml):

apiVersion: apps/v1 kind: Deployment metadata:   name: simple-crud spec:   selector:       matchLabels:         app: simple-crud   replicas: 3   template:     metadata:       labels:         app: simple-crud     spec:       containers:         - name: simple-crud           image: simple-crud:latest           imagePullPolicy: Never           ports:             - containerPort: 8080 

but when I run kubectl create -f simple-crud-dpl.yaml i got: error: SchemaError(io.k8s.api.autoscaling.v2beta2.MetricTarget): invalid object doesn't have additional properties

I'm using the newest version of kubectl:

kubectl version Client Version: version.Info{Major:"1", Minor:"10", GitVersion:"v1.10.11", GitCommit:"637c7e288581ee40ab4ca210618a89a555b6e7e9", GitTreeState:"clean", BuildDate:"2018-11-26T14:38:32Z", GoVersion:"go1.9.3", Compiler:"gc", Platform:"darwin/amd64"} Server Version: version.Info{Major:"1", Minor:"14", GitVersion:"v1.14.0", GitCommit:"641856db18352033a0d96dbc99153fa3b27298e5", GitTreeState:"clean", BuildDate:"2019-03-25T15:45:25Z", GoVersion:"go1.12.1", Compiler:"gc", Platform:"linux/amd64"} 

I'm also using minikube locally as it's described in tutorial. Everything is working till deployment and service. I'm not able to do it.

Answer 1

After installing kubectl with brew you should run:

1. rm /usr/local/bin/kubectl

2. brew link --overwrite kubernetes-cli

And also optionally:

brew link --overwrite --dry-run kubernetes-cli.

Answer 2

I second @rennekon's answer. I found that I had docker running on my machine which also installs kubectl. That installation of kubectl causes this issue to show.

I took the following steps:

• uninstalled it using brew uninstall kubectl
• reinstalled it using brew install kubectl
• (due to symlink creation failure) I forced brew to create symlinks using brew link --overwrite kubernetes-cli

I was then able to run my kubectl apply commands successfully.