Error when scaffolding using Entity Framework Core in ASP.Net core

I am trying to create models using an existing SQL Server 2016 database. When the run the command prompt as shown in the documentation:

PM> Scaffold-DbContext "'Server=techestatevm.southeastasia.cloudapp.azure.com;Database=Blogging;User Id=newuser;Password=pass;'" Microsoft.EntityFrameworkCore.SqlServer -verbose 

I get this error:

Working directory: E:\Personal\TE\VS Projects\EFGetStarted.AspNetCore.ExistingDb\src\EFGetStarted.AspNetCore.ExistingDb
Executing command: dotnet ef --configuration Debug --build-base-path .\bin\ dbcontext scaffold ''Server=techestatevm.southeastasia.cloudapp.azure.com;Database=Blogging;User Id=newuser;Password=pass;''
Microsoft.EntityFrameworkCore.SqlServer --verbose
At line:1 char:215
+ ... user;Password=pass;'' Microsoft.EntityFrameworkCore.SqlServer --verbo ... + ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Unexpected token 'Microsoft.EntityFrameworkCore.SqlServer' in expression or statement.

I have added all the Nuget packages. See my project.json :

{ "dependencies": { "Microsoft.AspNetCore.Diagnostics.EntityFrameworkCore": "1.0.0-rc2-final", "Microsoft.AspNetCore.Identity.EntityFrameworkCore": "1.0.0-rc2-final", "Microsoft.AspNetCore.Server.IISIntegration": "1.0.0-rc2-final", "Microsoft.AspNetCore.Server.Kestrel": "1.0.0-rc2-final", "Microsoft.EntityFrameworkCore": "1.0.0-rc2-final", "Microsoft.EntityFrameworkCore.InMemory": "1.0.0-rc2-final", "Microsoft.EntityFrameworkCore.SqlServer": "1.0.0-rc2-final", "Microsoft.EntityFrameworkCore.SqlServer.Design": "1.0.0-rc2-final", "Microsoft.EntityFrameworkCore.Tools": "1.0.0-preview1-final", "Microsoft.EntityFrameworkCore.Tools.Cli": "1.0.0-preview1-final", "Microsoft.EntityFrameworkCore.Tools.Core": "1.0.0-rc2-final", "Microsoft.VisualStudio.Web.CodeGeneration.EntityFrameworkCore": "1.0.0-preview1-final" }, "tools": { "Microsoft.EntityFrameworkCore.Tools": { "version": "1.0.0-preview1-final", "imports": [ "portable-net45+win8+dnxcore50", "portable-net45+win8" ] }, "Microsoft.AspNetCore.Server.IISIntegration.Tools": { "version": "1.0.0-preview1-final", "imports": "portable-net45+win8+dnxcore50" } }, "frameworks": { "net452": { } }, "buildOptions": { "emitEntryPoint": true, "preserveCompilationContext": true }, "publishOptions": { "include": [ "wwwroot", "web.config" ] }, "scripts": { "postpublish": [ "dotnet publish-iis --publish-folder %publish:OutputPath% --framework %publish:FullTargetFramework%" ] } }