unable to build a asp.net app in azure devops

Able to build the app locally, but when am trying to build in azure devops pipeline.It showing below errors I have installed EntityFramework and added system.data.entity.design assembly in webconfig file.No luck Please find pipeline here webapp\CaseDatabase.DataAccess\CaseAssignmentModule\CaseQueueDbAdapter.cs(10,19): Error CS0234: The type or namespace name ‘Entity’ does not exist in the namespace ‘System.Data’ (are you missing an…