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I cloned the openVR repo and went directly to compile the driver_sample and hellovr_dx12 and hellovr_opengl projects. The builds were successful. But both the helloVR applications failed to launch with an error:

Failed to find interface 'IVRCompositor_027'

I have no clue except My guess is that the variable IVRCompositor_Version might need to be set appropriately, but how to find the right version?

Using SteamVR 1.15.15 on Windows 10, VS2019. The HMD (HTC Vive) is correctly setup.

Noob
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1 Answers1

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I updated SteamVR to the lastest version and the issue is solved.

Noob
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  • To clarify why that happen, openvr only got that interface with that particular version only in the last release, which was 1.16.8 and it got released on 02.25.2021, almost a month before this question. And so to clarify what happen is you updated openvr, not SteamVR – Oleg Vorobiov Sep 14 '21 at 11:02