# Variables resolution errored

**URL:** <https://forum.serverless.com/t/variables-resolution-errored/16999>\
**Category:** Serverless Framework\
**Tags:** azure, variables\
**Created:** [April 7, 2022, 5:32pm UTC](https://forum.serverless.com/t/variables-resolution-errored/16999 "2022-04-07T17:32:58Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![sathishmohan-ps](https://yyz2.discourse-cdn.com/flex036/user_avatar/forum.serverless.com/sathishmohan-ps/32/6729_2.png) [@sathishmohan-ps](https://forum.serverless.com/u/sathishmohan-ps)\
**Post date:** [April 7, 2022, 5:32pm UTC](https://forum.serverless.com/t/variables-resolution-errored/16999/1 "2022-04-07T17:32:58Z")

</div>

When trying to use custom variables for multiple stages, serverless is providing **Variables resolution errored**

```auto
Running "serverless" from node_modules
Environment: win32, node 14.19.0, framework 3.12.0 (local) 3.12.0v (global), plugin 6.2.1, SDK 4.3.2
Docs: docs.serverless.com
Support: forum.serverless.com
Bugs: github.com/serverless/serverless/issues

Error:
Cannot resolve serverless.yml: Variables resolution errored with:
  - Variable syntax error at "provider.resourceGroup": Invalid literal source "RG001" at index 51 in "${self:custom.resourceGroup.${opt:stage, 'local'}, RG001}",
  - Variable syntax error at "provider.storageAccount.name": Invalid literal source "sa001" at index 52 in "${self:custom.storageAccount.${opt:stage, 'local'}, sa001}",
  - Variable syntax error at "provider.appInsights.name": Invalid literal source "AI001" at index 49 in "${self:custom.appInsights.${opt:stage, 'local'}, AI001}",
  - Variable syntax error at "provider.tags.Environment": Invalid literal source "Development" at index 49 in "${self:custom.environment.${opt:stage, 'local'}, Development}"

```

here is my serverless.yml definition

```auto
provider:
  name: azure
  region: West US 2
  runtime: nodejs14
  resourceGroup: ${self:custom.resourceGroup.${opt:stage, 'local'}, RG001}
  storageAccount:
    name: ${self:custom.storageAccount.${opt:stage, 'local'}, sa001}
  functionApp:
    name: pur-${opt:stage, 'local'}-function-app
  appInsights:
    name: ${self:custom.appInsights.${opt:stage, 'local'}, AI001}
	
custom:
  resourceGroup:
    development: RG001
    qa: RG002
    performance: RG003
  storageAccount:
    development: sa001
    qa: sa002
    performance: sa003
  appInsights:
    development: AI001
    qa: AI002
    performance: AI003

```

---

<div class="post-metadata">

**Author:** ![jayz14](https://avatars.discourse-cdn.com/v4/letter/j/58956e/32.png) [@jayz14](https://forum.serverless.com/u/jayz14)\
**Post date:** [May 30, 2023, 6:43am UTC](https://forum.serverless.com/t/variables-resolution-errored/16999/2 "2023-05-30T06:43:43Z")

</div>

Hi @sathishmohan-ps,  
were you able to resolve this? I am facing similar issue