TERRAFORM CRASH during plan index out of range

[ghost]

This issue was originally opened by @roshanp85 as hashicorp/terraform#22241. It was migrated here as a result of the provider split. The original body of the issue is below.

---

Hi All, I am getting terraform crash while planning the application gateway. I am specifically having this issue while planning for application gateway.

Could you please take a look at this and let me know if I am missing anything. Below are the versions I am using for this. I am storing the terraform state remotely in Storage blob container.
terraform {
required_version = "= 0.11.14"
}
provider "azurerm" {
version = "= 1.27.1"
}
provider "null" {
version = "= 2.1.1"
}
provider "template" {
version = "= 2.1.1"
}

PS D:> terraform plan --target=module.appgateway

Warning: azurerm_subnet.agw1subnet: "network_security_group_id": [DEPRECATED] Use the azurerm_subnet_network_security_group_association resource instead.

Refreshing Terraform state in-memory prior to plan...
The refreshed state will be used to calculate this plan, but will not be
persisted to local or remote state storage.
Error: Error refreshing state: 1 error occurred:
* module.appgateway.azurerm_application_gateway.application_gateway: 1 error occurred:
* module.appgateway.azurerm_application_gateway.application_gateway: azurerm_application_gateway.application_gateway: unexpected EOF

panic: runtime error: index out of range
2019-07-29T14:12:43.363-0400 [DEBUG] plugin.terraform-provider-azurerm_v1.27.1_x4.exe:
2019-07-29T14:12:43.363-0400 [DEBUG] plugin.terraform-provider-azurerm_v1.27.1_x4.exe: goroutine 127 [running]:
2019-07-29T14:12:43.363-0400 [DEBUG] plugin.terraform-provider-azurerm_v1.27.1_x4.exe: github.com/terraform-providers/terraform-provider-azurerm/azurerm.flattenApplicationGatewayAuthenticationCertificates(0xc0007c2b40, 0xc0006a6380, 0x5, 0x0, 0x0)
2019-07-29T14:12:43.363-0400 [DEBUG] plugin.terraform-provider-azurerm_v1.27.1_x4.exe: /opt/teamcity-agent/work/5d79fe75d4460a2f/src/github.com/terraform-providers/terraform-provider-azurerm/azurerm/resource_arm_application_gateway.go:1276 +0x562
2019-07-29T14:12:43.363-0400 [DEBUG] plugin.terraform-provider-azurerm_v1.27.1_x4.exe: github.com/terraform-providers/terraform-provider-azurerm/azurerm.resourceArmApplicationGatewayRead(0xc0006a6380, 0x2e56180, 0xc000cdc000, 0xc0006a6380, 0x0)
2019-07-29T14:12:43.363-0400 [DEBUG] plugin.terraform-provider-azurerm_v1.27.1_x4.exe: /opt/teamcity-agent/work/5d79fe75d4460a2f/src/github.com/terraform-providers/terraform-provider-azurerm/azurerm/resource_arm_application_gateway.go:1113 +0x631
2019-07-29T14:12:43.363-0400 [DEBUG] plugin.terraform-provider-azurerm_v1.27.1_x4.exe: github.com/terraform-providers/terraform-provider-azurerm/vendor/github.com/hashicorp/terraform/helper/schema.(*Resource).Refresh(0xc00008ae00, 0xc0004f9ef0, 0x2e56180, 0xc000cdc000, 0xc000080fd8, 0x4d4201, 0x2a12
fe0)
2019-07-29T14:12:43.363-0400 [DEBUG] plugin.terraform-provider-azurerm_v1.27.1_x4.exe: /opt/teamcity-agent/work/5d79fe75d4460a2f/src/github.com/terraform-providers/terraform-provider-azurerm/vendor/github.com/hashicorp/terraform/helper/schema/resource.go:503 +0x179
2019-07-29T14:12:43.363-0400 [DEBUG] plugin.terraform-provider-azurerm_v1.27.1_x4.exe: github.com/terraform-providers/terraform-provider-azurerm/vendor/github.com/hashicorp/terraform/helper/schema.(*Provider).Refresh(0xc000950980, 0xc0004f9ea0, 0xc0004f9ef0, 0xc000721c00, 0x0, 0x320000)
2019-07-29T14:12:43.363-0400 [DEBUG] plugin.terraform-provider-azurerm_v1.27.1_x4.exe: /opt/teamcity-agent/work/5d79fe75d4460a2f/src/github.com/terraform-providers/terraform-provider-azurerm/vendor/github.com/hashicorp/terraform/helper/schema/provider.go:324 +0x99
2019-07-29T14:12:43.363-0400 [DEBUG] plugin.terraform-provider-azurerm_v1.27.1_x4.exe: github.com/terraform-providers/terraform-provider-azurerm/vendor/github.com/hashicorp/terraform/plugin.(*ResourceProviderServer).Refresh(0xc000c16780, 0xc0001346b0, 0xc000134780, 0x0, 0x0)
2019-07-29T14:12:43.363-0400 [DEBUG] plugin.terraform-provider-azurerm_v1.27.1_x4.exe: /opt/teamcity-agent/work/5d79fe75d4460a2f/src/github.com/terraform-providers/terraform-provider-azurerm/vendor/github.com/hashicorp/terraform/plugin/resource_provider.go:552 +0x55
2019-07-29T14:12:43.363-0400 [DEBUG] plugin.terraform-provider-azurerm_v1.27.1_x4.exe: reflect.Value.call(0xc0000fd7a0, 0xc0000077d0, 0x13, 0x2f17ce5, 0x4, 0xc00060ff18, 0x3, 0x3, 0xc00005c9c0, 0xc0001e6390, ...)
2019-07-29T14:12:43.363-0400 [DEBUG] plugin.terraform-provider-azurerm_v1.27.1_x4.exe: /opt/goenv/versions/1.11.5/src/reflect/value.go:447 +0x45b
2019-07-29T14:12:43.363-0400 [DEBUG] plugin.terraform-provider-azurerm_v1.27.1_x4.exe: reflect.Value.Call(0xc0000fd7a0, 0xc0000077d0, 0x13, 0xc00060ff18, 0x3, 0x3, 0x1000200000000, 0xc0001e6380, 0x0)
2019-07-29T14:12:43.363-0400 [DEBUG] plugin.terraform-provider-azurerm_v1.27.1_x4.exe: /opt/goenv/versions/1.11.5/src/reflect/value.go:308 +0xab
2019-07-29T14:12:43.363-0400 [DEBUG] plugin.terraform-provider-azurerm_v1.27.1_x4.exe: net/rpc.(*service).call(0xc000bca100, 0xc0004f8b90, 0xc000c3f7f8, 0xc000c3f810, 0xc000950e80, 0xc000c16d80, 0x2a12fa0, 0xc0001346b0, 0x16, 0x2a12fe0, ...)
2019-07-29T14:12:43.363-0400 [DEBUG] plugin.terraform-provider-azurerm_v1.27.1_x4.exe: /opt/goenv/versions/1.11.5/src/net/rpc/server.go:384 +0x155
2019-07-29T14:12:43.363-0400 [DEBUG] plugin.terraform-provider-azurerm_v1.27.1_x4.exe: created by net/rpc.(*Server).ServeCodec
2019-07-29T14:12:43.363-0400 [DEBUG] plugin.terraform-provider-azurerm_v1.27.1_x4.exe: /opt/goenv/versions/1.11.5/src/net/rpc/server.go:481 +0x485
2019/07/29 14:12:43 [ERROR] root.appgateway: eval: *terraform.EvalRefresh, err: azurerm_application_gateway.application_gateway: unexpected EOF
2019/07/29 14:12:43 [ERROR] root.appgateway: eval: *terraform.EvalSequence, err: azurerm_application_gateway.application_gateway: unexpected EOF
2019/07/29 14:12:43 [TRACE] [walkRefresh] Exiting eval tree: module.appgateway.azurerm_application_gateway.application_gateway
2019/07/29 14:12:43 [TRACE] dag/walk: upstream errored, not walking "provider.azurerm (close)"
2019/07/29 14:12:43 [TRACE] dag/walk: upstream errored, not walking "root"
2019-07-29T14:12:43.379-0400 [DEBUG] plugin: plugin process exited: path=D:\SVN\Release\Release\Terraform\PrimaryInsights.terraform\plugins\windows_amd64\terraform-provider-azurerm_v1.27.1_x4.exe
2019/07/29 14:12:43 [DEBUG] plugin: waiting for all plugin processes to complete...
2019-07-29T14:12:43.385-0400 [WARN ] plugin: error closing client during Kill: err="connection is shut down"
2019-07-29T14:12:43.387-0400 [DEBUG] plugin.terraform.exe: local-exec-provisioner (internal) 2019/07/29 14:12:43 [ERR] plugin: plugin server: accept tcp 127.0.0.1:10001: use of closed network connection
2019-07-29T14:12:43.387-0400 [DEBUG] plugin.terraform.exe: local-exec-provisioner (internal) 2019/07/29 14:12:43 [DEBUG] plugin: waiting for all plugin processes to complete...
2019-07-29T14:12:43.397-0400 [DEBUG] plugin: plugin process exited: path="C:\Program Files\Terraform\terraform.exe"

!!!!!!!!!!!!!!!!!!!!!!!!!!! TERRAFORM CRASH !!!!!!!!!!!!!!!!!!!!!!!!!!!!

Terraform crashed! This is always indicative of a bug within Terraform.
A crash log has been placed at "crash.log" relative to your current
working directory. It would be immensely helpful if you could please
report the crash with Terraform1 so that we can fix this.

When reporting bugs, please include your terraform version. That
information is available on the first line of crash.log. You can also
get it by running 'terraform --version' on the command line.

!!!!!!!!!!!!!!!!!!!!!!!!!!! TERRAFORM CRASH !!!!!!!!!!!!!!!!!!!!!!!!!!!!

[mbfrahry]

Hey @roshanp85. Thanks for opening up this issue. We found the crash and patched it in #3966. It will go out in the next release (v1.32.1). Feel free to reopen this if you continue to have issues after that release goes out.

[roshanp85]

So at this point should I just change the provider in my version.tf file and we should be good to go? Also when’s the release of v1.32.1, any tentative date we have ? Regards, Roshan

…

On Mon, Jul 29, 2019 at 18:48 Matthew Frahry ***@***.***> wrote: Hey @roshanp85 <https://github.com/roshanp85>. Thanks for opening up this issue. We found the crash and patched it in #3966 <#3966>. It will go out in the next release (v1.32.1). Feel free to reopen this if you continue to have issues after that release goes out. — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#3965>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AMWW65WFC4NGMIIOF5O4LATQB5XUTANCNFSM4IHWKMRA> .

[ghost]

This has been released in version 1.32.1 of the provider. Please see the Terraform documentation on provider versioning or reach out if you need any assistance upgrading. As an example:

provider "azurerm" {
    version = "~> 1.32.1"
}
# ... other configuration ...

[ghost]

I'm going to lock this issue because it has been closed for 30 days ⏳. This helps our maintainers find and focus on the active issues.

If you feel this issue should be reopened, we encourage creating a new issue linking back to this one for added context. If you feel I made an error 🤖 🙉 , please reach out to my human friends 👉 hashibot-feedback@hashicorp.com. Thanks!