[reportviewer] Missing Microsoft RDLC Report Designer in Visual Studio

In VS 2017, i have checked SQL Server Data Tools during the installation and it doesn't help. So I have downloaded and installed Microsoft.RdlcDesigner.vsix

Now it works.

UPDATE

Another way is to use Extensions and Updates.

Go to Tools > Extensions and Updates choose Online then search for Microsoft Rdlc Report Designer for Visual studio and click Download. It need to close VS to start installation. After installation you will be able to use rdlc designer.

Hope this helps!