1 pod has unbound immediate PersistentVolumeClaims on Minikube

I'm trying to use kubernetes with a spring boot application and use mysql. But i found this error on minikube dashboard:

0/1 nodes are available: 1 pod has unbound immediate PersistentVolumeClaims.Back-off restarting failed container    

A secret file is created for boath user and admin and a configMap file also to map the spring boot image to the service of mysql.Mysql deployement file is:

apiVersion: v1kind: Servicemetadata:  name: mysql  # DNS name  labels:    app: mysql    tier: databasespec:  ports:    - port: 3306      targetPort: 3306  selector:       # mysql Pod Should contain same labels    app: mysql    tier: database  clusterIP: None  # We Use DNS, Thus ClusterIP is not relevant---# Define a 'Persistent Volume Claim'(PVC) for Mysql Storage, dynamically provisioned by clusterapiVersion: v1kind: PersistentVolumeClaimmetadata:  name: mysql-pv-claim # name of PVC essential for identifying the storage data  labels:    app: mysql    tier: databasespec:  accessModes:    - ReadWriteOnce   #This specifies the mode of the claim that we are trying to create.  resources:    requests:      storage: 1Gi    #This will tell kubernetes about the amount of space we are trying to claim.---# Configure 'Deployment' of mysql serverapiVersion: apps/v1kind: Deploymentmetadata:  name: mysql  labels:    app: mysql    tier: databasespec:  selector: # mysql Pod Should contain same labels    matchLabels:      app: mysql      tier: database  strategy:    type: Recreate  template:    metadata:      labels: # Must match 'Service' and 'Deployment' selectors        app: mysql        tier: database    spec:      containers:        - image: mysql:latest # image from docker-hub          args:            - "--ignore-db-dir=lost+found" # Workaround for https://github.com/docker-library/mysql/issues/186          name: mysql          env:            - name: MYSQL_ROOT_PASSWORD # Setting Root Password of mysql From a 'Secret'              valueFrom:                secretKeyRef:                  name: db-admin # Name of the 'Secret'                  key: password   # 'key' inside the Secret which contains required 'value'            - name: MYSQL_USER # Setting USER username on mysql From a 'Secret'              valueFrom:                secretKeyRef:                  name: db-user                  key: username            - name: MYSQL_PASSWORD # Setting USER Password on mysql From a 'Secret'              valueFrom:                secretKeyRef:                  name: db-user                  key: password            - name: MYSQL_DATABASE # Setting Database Name from a 'ConfigMap'              valueFrom:                configMapKeyRef:                  name: db-config                  key: name          ports:            - containerPort: 3306              name: mysql          volumeMounts:        # Mounting volume obtained from Persistent Volume Claim            - name: mysql-persistent-storage              mountPath: /var/lib/mysql #This is the path in the container on which the mounting will take place.      volumes:        - name: mysql-persistent-storage # Obtaining 'volume' from PVC          persistentVolumeClaim:            claimName: mysql-pv-claim

I'm new with kubernetes and I can't find solution.