[Exception] No input files provided

Describe the bug The following error occurred when running “autorest” in the Azs.Backup.Admin Azure Stack module located in “…\Azure\azurestack-powershell\src\Azs.Backup.Admin”. The result is no files are generated by autorest.

Here is the repository: https://github.com/Azure/azurestack-powershell

PS C:\tasks\Azure\azurestack-powershell\src\Azs.Backup.Admin> autorest
AutoRest code generation utility [cli version: 3.0.6247; node: v12.18.3, max-memory: 2048 gb]
(C) 2018 Microsoft Corporation.
https://aka.ms/autorest

There is a new version of AutoRest available (3.0.6339).
 > You can install the newer version with with npm install -g autorest@latest

   Loading AutoRest core      'C:\Users\weshi1\.autorest\@autorest_core@3.0.6373\node_modules\@autorest\core\dist' (3.0.6373)

The default version of @autorest/powershell has been bummped from 2.1+ to 3.0+.
 > If you still want to use 2.1+ version, please specify it with --use:@autorest/powershell@2.1.{x}, e.g 2.1.401.

   Loading AutoRest extension '@autorest/powershell' (~3.0.0->3.0.421)
   Loading AutoRest extension '@autorest/modelerfour' (4.15.414->4.15.414)
[Exception] No input files provided.

Use --help to get help information.

Expected behavior The module should build and not throw an exception as it did in older autorest versions.

[dolauli]

The fix should be there. However as this change is quite large and could have other unexpected consequences, it won’t be published to latest yet. Please use version 3.1.0-dev.2 for now using --version:@autorest/core@3.1.0-dev.2

I believe it should be --version:3.1.0-dev.2. And with this version, I will run the issue as below.

  Error: Cannot resolve pipeline stage 'modelerfour/identity' for stage 'tweakm4codemodel'. Looked for pipeline stages:
 - modelerfour/identity

[TheOnlyWei]

Thanks @timotheeguerin, removing the condition worked for the module.