CS7038: Failed to emit module in ASP.NET Core

While building the ASP.NET Core project, I am getting folllowing error.

Severity Code Description Project File Line Source Suppression State
Error E:\ITFundaCorp\Development\IndianConsumerComplaints\ICC.Web\src\ICC.Web\error CS7038: Failed to emit module 'ICC.Web'. ICC.Web C:\Program Files (x86)\MSBuild\Microsoft\VisualStudio\v14.0\DotNet\Microsoft.DotNet.Common.Targets 262 Build

I noticed that this started coming when I added MailKit and System.Drawing.Premetive references into project.json.

Now, even if I removed those references I am keep getting this.

Any expert help?