problems installing odbc and .Net drivers - Mailing list pgsql-general

I am getting the following error when I run the install from stackbuilder.

 Error trying to install file destination ${installdir} resolves to empty
 value.



 Does anyone know what might be causing this and how I can fix it.
 
 This is the developer's mailing list. You should ask this question on
 

Best Regards

Michael Gould