Can't find VisualStudio linker LINK.EXE

Question

I'm following the openCl documentation provided by Altera to setup an FPGA board and run an example on it. So far I have installed the SDK and followed the instructions but when I get to the step where I have to compile the kernel, I get the following error:

Error: aoc: Can't find VisualStudio linker LINK.EXE. Either use Visual Studio x64 Command Prompt or run %ALTERAOCLSDKROOT%\init_opencl.bat to setup your environment.

So I tried running the init_opencl.bat script but I get the following message:

AOCL_BOARD_PACKAGE_ROOT path is not set in environment Setting to default s5_ref board. If you want to target another board, do set AOCL_BOARD_PACKAGE_ROOT=board_pkg_dir and re-run this script

VisualStudio's link.exe is not on the path. Guessing its location. Cannot find VisualStudio installation by looking at the environment. If VisualStudio is installed, use VisualStudio Command Prompt to set all required environment variables.

Here is a link to the documentation I am trying to follow:

https://documentation.altera.com/#/00016207-AA$NT00067143

I also tried adding link.exe to the environment variables path but that had no luck. (C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\bin\link.exe).