Unresolved resource dependencies [ApiGatewayRestApi]

[jefersonlemos]

Hi, I'm facing an weird error on split stacks plugin using Serverless Framework.
We have about 273 resources and I'm still able to deploy without the plugin but with warnings.
Before issue, nothing was changed and in production it still works, however I can't deploy a new environment.

Error message

Template format error: Unresolved resource dependencies [ApiGatewayRestApi] in the Resources block of the template

Message says that there are unresolved dependencies however the ApiGateway exists..following the deploy via CloudFormation panel, I can see that it was created. During troubleshooting I could see that ApiGatewayRestApi was created by another file and the error was during lambda deploy and using a resource (ApiGatewayRestApi) that was declared on another file.