This error is the result of the Standard Data and Weather Files (Shared Content) being blocked from updating to the latest version as this is part of the installation process. There is a new version of the Standard Data and Weather Files (Shared Content) for VE 2015 (v3.0.0).
To resolve this issue you will need to download and install the latest version of the Shared Content from the Download Centre section of the IES website:
Once downloaded, run the Shared Content installer before the VE 2015 installer.
The installation process will now complete without error.