He looked where the tool should be installed, c: \ Program Files \ Microsoft SDK \ Windows \ v7.0A \ bin \ NETFX 4.0 Tools \ AxImp.exe is the usual place. You can check it out on your machine. I donβt know exactly what AppHarbor does, but the chances are that they intentionally deleted this tool.
There is very little hope of running AxImp.exe on a remote build server; the ActiveX component will not be installed on this machine. You will need to run AxImp.exe on your workstation, you only need to do this once. Add the two assemblies that it creates in your project, interop.foo.dll and axinterop.foo.dll. Set the Copy Local property to true.
If you are actually going to run your application on this remote machine, then stop right now, the ActiveX control will not be installed on this machine. When installing it, a miracle or two should happen.
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