Error converting value False to type 'AutoRest.Modeler.Model.Schema'

Since Autorest Core 3.0.6282 was released today, my build is failing to generate c# clients. It was working fine with AutoRest 3.0.6187 and Autorest Core 3.0.6274 just a day ago.

AutoRest code generation utility [cli version: 3.0.6187; node: v12.16.1, max-memory: 8192 gb]
(C) 2018 Microsoft Corporation.
https://aka.ms/autorest
Network Enabled: true
Starting @autorest/core from /home/vsts/.autorest/@autorest_core@3.0.6274
   Loading AutoRest core      '/home/vsts/.autorest/@autorest_core@3.0.6274/node_modules/@autorest/core/dist' (3.0.6274)
   Installing AutoRest extension '@microsoft.azure/autorest.csharp' (2.3.82)
   Installed AutoRest extension '@microsoft.azure/autorest.csharp' (2.3.82->2.3.82)
   Installing AutoRest extension '@microsoft.azure/autorest.modeler' (2.3.55)
   Installed AutoRest extension '@microsoft.azure/autorest.modeler' (2.3.55->2.3.55)

The error I’m receiving is:

AutoRest code generation utility [cli version: 3.0.6187; node: v12.16.1, max-memory: 8192 gb]
(C) 2018 Microsoft Corporation.
https://aka.ms/autorest
Network Enabled: true
Starting @autorest/core from /home/vsts/.autorest/@autorest_core@3.0.6282
   Loading AutoRest core      '/home/vsts/.autorest/@autorest_core@3.0.6282/node_modules/@autorest/core/dist' (3.0.6282)
   Installing AutoRest extension '@microsoft.azure/autorest.csharp' (2.3.82)
   Installed AutoRest extension '@microsoft.azure/autorest.csharp' (2.3.82->2.3.82)
   Installing AutoRest extension '@microsoft.azure/autorest.modeler' (2.3.55)
   Installed AutoRest extension '@microsoft.azure/autorest.modeler' (2.3.55->2.3.55)
...
DEBUG [11.34 s]: openapi-document/compose - END [0.27 s]
DEBUG [11.35 s]: openapi-document/identity - START inputs = 1
DEBUG [11.35 s]: openapi-document/identity - END [0 s]
DEBUG [11.35 s]: csharp/imodeler1 - START inputs = 1
FATAL: Error parsing swagger file. Error converting value False to type 'AutoRest.Modeler.Model.Schema'. Path 'components.schemas.AdditionalGroupRoleAssignment.additionalProperties', line 1, position 211194.
FATAL: AutoRest.Core.Logging.CodeGenerationException: Error parsing swagger file. Error converting value False to type 'AutoRest.Modeler.Model.Schema'. Path 'components.schemas.AdditionalGroupRoleAssignment.additionalProperties', line 1, position 211194.
   at AutoRest.Modeler.SwaggerParser.Parse(String swaggerDocument) in /opt/vsts/work/1/s/src/SwaggerParser.cs:line 52
   at AutoRest.Modeler.Program.<ProcessInternal>d__2.MoveNext() in /opt/vsts/work/1/s/src/Program.cs:line 58
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at NewPlugin.<Process>d__15.MoveNext()
C:\Users\Bernarden\.autorest\@autorest_core@3.0.6282\node_modules\@autorest\core\dist\lib\pipeline\pipeline.js - FAILURE {}
Process() cancelled due to exception : Plugin imodeler1 reported failure. / Error: Plugin imodeler1 reported failure.
    at C:\Users\Bernarden\.autorest\@autorest_core@3.0.6282\node_modules\@autorest\core\dist\lib\pipeline\plugins\external.js:26:19
    at async ScheduleNode (C:\Users\Bernarden\.autorest\@autorest_core@3.0.6282\node_modules\@autorest\core\dist\lib\pipeline\pipeline.js:294:33)
  Error: Plugin imodeler1 reported failure.
[13.39 s] Shutting Down.
[13.39 s] Exiting.

[bernarden]

Yeah. There are additionalProperties: false in my swagger definition but as I mentioned above this became an issue only after @autorest/core 3.0.6282 was released. I fixed my immediate issue by adding --version=3.0.6274 to the list of autorest arguments.

[thisisthekap]

Also experiencing this issue with 3.0.6282.

3.0.6274 is working just fine.