This article describes what to do about a specific error that could occurr in the deployment step of recycling an IIS application pool.
StepsAn error has occurred in the deployment step of "Recycle IIS Application Pool': The communication object, System.ServiceModel.InstanceContext, cannot be used for communication because it has been Aborted.Simple way to let the Deploy occur1. Click "Start" -> "Run...".2. Type "iisreset" as in the following:3. Wait untill IIS stops then starts again as in the following:4. Right-click on your SharePoint project then click "Deploy" as in the following:5. Deploy will now succeed.6. If you are still seeing "Error occurred in deployment step 'Recycle IIS Application Pool'" then please restart your SharePoint Server Front Web application.
SharePoint Framework (SPFx) A Developers Guide