'null' values are not allowed in templates

[bmetea]

Hi, first of all thank you for creating this plugin. It will make my life so much easier when I get it working. Not sure if this is a bug or I'm not doing it properly but every time I try to deploy using the plugin i get the following:

Serverless: Validating template...
 
  Error --------------------------------------------------
 
  The CloudFormation template is invalid: [/Resources/GetDashtickerDashdropdownsLambdaFunctionAliasLive/Type/FunctionVersion/Fn::GetAtt/0] 'null' values are not allowed in templates
 
     For debugging logs, run again after setting the "SLS_DEBUG=*" environment variable.
 
  Stack Trace --------------------------------------------
 
Error: The CloudFormation template is invalid: [/Resources/GetDashtickerDashdropdownsLambdaFunctionAliasLive/Type/FunctionVersion/Fn::GetAtt/0] 'null' values are not allowed in templates
    at provider.request.catch (/usr/lib/node_modules/serverless/lib/plugins/aws/deploy/lib/validateTemplate.js:25:13)
From previous event:
    at AwsDeploy.validateTemplate (/usr/lib/node_modules/serverless/lib/plugins/aws/deploy/lib/validateTemplate.js:20:12)
From previous event:
    at AwsDeploy.BbPromise.bind.then (/usr/lib/node_modules/serverless/lib/plugins/aws/deploy/index.js:121:39)
From previous event:
    at Object.aws:deploy:deploy:validateTemplate [as hook] (/usr/lib/node_modules/serverless/lib/plugins/aws/deploy/index.js:117:10)
    at BbPromise.reduce (/usr/lib/node_modules/serverless/lib/classes/PluginManager.js:390:55)
From previous event:
    at PluginManager.invoke (/usr/lib/node_modules/serverless/lib/classes/PluginManager.js:390:22)
    at PluginManager.spawn (/usr/lib/node_modules/serverless/lib/classes/PluginManager.js:408:17)
    at AwsDeploy.BbPromise.bind.then (/usr/lib/node_modules/serverless/lib/plugins/aws/deploy/index.js:95:48)
From previous event:
    at Object.deploy:deploy [as hook] (/usr/lib/node_modules/serverless/lib/plugins/aws/deploy/index.js:91:10)
    at BbPromise.reduce (/usr/lib/node_modules/serverless/lib/classes/PluginManager.js:390:55)
From previous event:
    at PluginManager.invoke (/usr/lib/node_modules/serverless/lib/classes/PluginManager.js:390:22)
    at PluginManager.run (/usr/lib/node_modules/serverless/lib/classes/PluginManager.js:421:17)
    at variables.populateService.then.then (/usr/lib/node_modules/serverless/lib/Serverless.js:157:33)
    at runCallback (timers.js:705:18)
    at tryOnImmediate (timers.js:676:5)
    at processImmediate (timers.js:658:5)
    at process.topLevelDomainCallback (domain.js:121:23)
From previous event:
    at Serverless.run (/usr/lib/node_modules/serverless/lib/Serverless.js:144:8)
    at serverless.init.then (/usr/lib/node_modules/serverless/bin/serverless:43:50)
 
  Get Support --------------------------------------------
     Docs:          docs.serverless.com
     Bugs:          github.com/serverless/serverless/issues
     Issues:        forum.serverless.com
 
  Your Environment Information -----------------------------
     OS:                     linux
     Node Version:           10.12.0
     Serverless Version:     1.32.0
 
Exited with code 1

The deployment settings for my function are:

deploymentSettings:
      type: Linear10PercentEvery1Minute
      alias: Live

Would anyone know why? Thanks

[davidgf]

Hey @meteabogdan, could I have a look at the CloudFormation template generated by Serverless and the serverless.yml file?

[bmetea]

Hi @davidgf,
I found the problem.
The versionFunctions serverless parameter was set to false because we ran out of lambda storage and we weren't really rolling back using the versions anyway.
So, if anyone else runs into this problem, it could be that function versioning is off. Turning it back on would fix it.
Thank you for your time! And thanks for the plugin!

[asaf-kali]

For anyone who gets here in the future, under provider section, remove this line (the default value is true):