RangeError: Maximum call stack size exceeded -- generating C# client

I am trying to generate a C# client for a large-ish (7.6MB 234K lines) OpenAPI spec from a vendor. Unfortunately it’s not public so I cannot attach it here.

Here is my command line:

autorest --input-file=verylarge.json --csharp --output-folder=localfolder

Here is the error I’m getting

AutoRest code generation utility [cli version: 3.2.0; node: v12.18.3, max-memory: 2048 MB]
(C) 2018 Microsoft Corporation.
https://aka.ms/autorest
NOTE: AutoRest core version selected from configuration: ~3.1.0.
   Loading AutoRest core      'C:\Users\dmcclelland1\.autorest\@autorest_core@3.1.3\node_modules\@autorest\core\dist' (3.1.3)
INFORMATION: > Loading AutoRest extension '@autorest/csharp' (latest->3.0.0-beta.20210428.6)
INFORMATION: > Loading AutoRest extension '@autorest/modelerfour' (4.19.0->4.19.0)
  RangeError: Maximum call stack size exceeded

What steps can I take to troubleshoot this?

[drmcclelland]

I will keep looking through it, but since the original error is resolved I’ll close this for now - thanks for your help @timotheeguerin

[timotheeguerin]

Yeah that error looks like there is something named with an empty string or blank string. Usually this is an enum with an empty value. I believe this can be resolved by giving the explict name to the enum empty value using x-ms-enum