TypeError: this.aliasStackGetAliasStackNames(...).mapSeries is not a function

Type Error ----------------------------------------------

TypeError: this.aliasStackGetAliasStackNames(…).mapSeries is not a function
at AwsAlias.aliasStackLoadAliasTemplates (/opt/atlassian/pipelines/agent/build/node_modules/serverless-aws-alias-fixed/lib/stackInformation.js:82:4)
at AwsAlias.tryCatcher (/opt/atlassian/pipelines/agent/build/node_modules/bluebird/js/release/util.js:16:23)
at Promise._settlePromiseFromHandler (/opt/atlassian/pipelines/agent/build/node_modules/bluebird/js/release/promise.js:547:31)
at Promise._settlePromise (/opt/atlassian/pipelines/agent/build/node_modules/bluebird/js/release/promise.js:604:18)
at Promise._settlePromiseCtx (/opt/atlassian/pipelines/agent/build/node_modules/bluebird/js/release/promise.js:641:10)
at _drainQueueStep (/opt/atlassian/pipelines/agent/build/node_modules/bluebird/js/release/async.js:97:12)
at _drainQueue (/opt/atlassian/pipelines/agent/build/node_modules/bluebird/js/release/async.js:86:9)
at Async._drainQueues (/opt/atlassian/pipelines/agent/build/node_modules/bluebird/js/release/async.js:102:5)
at Immediate.Async.drainQueues [as _onImmediate] (/opt/atlassian/pipelines/agent/build/node_modules/bluebird/js/release/async.js:15:14)
at processImmediate (internal/timers.js:461:21)

 For debugging logs, run again after setting the "SLS_DEBUG=*" environment variable.

Get Support --------------------------------------------
Docs: docs.serverless.com
Bugs: github.com/serverless/serverless/issues
Issues: forum.serverless.com

Your Environment Information ---------------------------
Operating System: linux
Node Version: 14.16.0
Framework Version: 2.71.0 (local)
Plugin Version: 5.5.3
SDK Version: 4.3.0
Components Version: 3.18.1

This error message looks like its related to a plugin called serverless-aws-alias. I would recommend getting in touch with the plugin author at GitHub - serverless-heaven/serverless-aws-alias: Alias support for Serverless 1.x as they would be best suited to help answer those questions.

If there is anyone else on the forums with experience with the plugin then please feel free to assist :slight_smile: