Installing Microsoft SQL Server Data Tools – Business Intelligence for Visual Studio 2013: Rule “Same architecture installation” failed??

SSDTFailed
So I had to install Microsoft SQL Server Data Tools – Business Intelligence for Visual Studio 2013 today, and was greeted with the above error. Based on the error, I assumed I had SQL Server 2014 x64 installed and I somehow needed SSDT for x64 and not x86. Funnily enough, the installation page suggests both x64 and x86 architectures are supported. I was frantically searching for a x64 installation.

Thanks to a StackOverflow post:

As the others have said, there is only a 32 bit version.

The important thing is, if you’re running an x64-based SQL instance (64-bit), make sure to select “New Instance” on the Installation Type page, and NOT “Add features to an existing instance”. Not doing so will cause it to error out.

I was selecting “Add features to an existing instance” thinking “New Instance” meant installing a new SQL Server fresh again, like most people would.

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