EB Create fails to create "ElasticLoadBalancer" must specify 2 Availability zones

Question

I'm trying to create an application and an environment with ELB CL, all steps are fine but Load Balancer doesn't get created:

**[ERROR] Creating load balancer failed Reason: Resource handler returned message: "At least two subnets in two different Availability Zones must be specified (Service: ElasticLoadBalancingV2, Status Code: 400,**

My VPC specifies 2 public subnets as the Technical Essentials tutorial specify.
What should I do to fix this error :

Answer

You'll first need to create two or more subnets in your VPC. It's typically good practice to create at least one subnet for each availability zone (AZ) in your region. Be sure to select public/private as is appropriate for your architecture.

Answer

It seems the issue is that the load balancer is not able to select subnets across two different Availability Zones as required.

Please check the following:
* Verify that the VPC has at least two public subnets, each located in a different Availability Zone.
* When creating the load balancer, select one public subnet from Availability Zone 1 and one from Availability Zone 2.
* Ensure the security groups allow access on the listener port and health check port from the load balancer to the target instances.
* Check that no network ACLs are blocking necessary traffic to/from the load balancer subnets

EB Create fails to create "ElasticLoadBalancer" must specify 2 Availability zones

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