While installing SSDT –BI for
SQL 2014 (aka SQL Server Data Tools -
Business Intelligence for Visual Studio 2013), you might get this error if
you have a pre-existing instance of SQL 2014 and you had opted to use the
existing instance.
Same architecture installation
When you click on View detailed report, you will find this message:
BlockMixedArchitectureInstall
The CPU architecture of installing feature(s) is different than the
instance specified. To continue, add
features to this instance with the same architecture.
Solution
Apparently this is a bug, because if you go back a couple of dialog windows and select Perform a new installation of SQL Server 2014, it will
actually use the existing instance without installing a new one.
