Unfortunately MSBuild and BIDS Helper are not able to build an .asdatabase from our Analysis Services project (.dwproj). Here is a task which invokes Visual Studio to build such a solution:
<Target Name="DevEnvBuild"> <Error Condition="'$(SolutionFile)'==''" Text="Missing SolutionFile" /> <PropertyGroup> <DevEnvTool Condition="'$(DevEnvTool)'==''">C:\Program Files\Microsoft Visual Studio 9.0\Common7\IDE\devenv.exe</DevEnvTool> <DevEnvSwitch Condition="'$(DevEnvSwitch)'==''">Build</DevEnvSwitch> <DevEnvBuildCommand>"$(DevEnvTool)" "$(SolutionFile)" /$(DevEnvSwitch)</DevEnvBuildCommand> </PropertyGroup> <Exec Command="$(DevEnvBuildCommand)" /> </Target>