The type or namespace name 'Entity' does not exist in the namespace 'System.Data'

Question

I\'m using WS class and it gave me error when I run the application:

The type or namespace name \'Entity\' does not exist in the namespace \'System.Data\' 
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Answer 1

If you are using EF version more than 6.x , then see if you have installed the entity framework nuget package in every project of your solution. You might have installed Ef but not in that particular project which you are working on.