Build fails unless WiX Toolset v3.7 is installed

[vladaver]

If Wix toolset v3.7 is not installed, build fails with multiple errors like:
...\externals\wix\wix2010.targets(2025,5): error MSB4062: The "GenerateCompileWithObjectPath" task could not be loaded from the assembly \WixTasks.dll. Could not load file or assembly 'file:///C:\WixTasks.dll' or one of its dependencies. The system cannot find the file specified. Confirm that the declaration is correct, ....

Tried with Wix toolset v 3.5 and v 3.8 (latest) - build fails on both, works only with v 3.7.

The project includes 'own' copy of wix tools in the externals/wix folder, so installing any version of Wix Toolset at all should not be required for successful command line build.

[benstpierre]

I also his this problem. Wix 3.8 is the only version that works with Visual Studio 2013 so MSIEXT not working with Wix 3.8 makes it unuseable for us.

[icnocop]

I created pull request #17 to fix this issue, at least when building on the command line (with build.cmd).

[dblock]

This should be all fixed.