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I'm trying ARKit and get a black screen with the following error message. The WWDC 2017 sample PlacingObjects is running on the same device without problems.

[] <<<< FigVirtualFramebufferServer >>>> FigVirtualFramebufferGetMaxCount: unsupported operation
[] <<<< FigVirtualFramebufferServer >>>> FigVirtualFramebufferGetFramebufs: unsupported operation
[] <<<< FigVirtualFramebufferInstallation >>>> FigInstallVirtualDisplay_block_invoke: FigVirtualFramebufferGetFramebufs failed (0 framebufs)
[MC] System group container for systemgroup.com.apple.configurationprofiles path is /private/var/containers/Shared/SystemGroup/systemgroup.com.apple.configurationprofiles
[MC] Reading from public effective user settings.

What is missing?

Andy Jazz
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Jan F.
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    Did you provide a privacy camera usage description in your info plist? – rickster Jun 07 '17 at 18:02
  • Yes there is a "Privacy - Camera Usage Description". – Jan F. Jun 07 '17 at 18:17
  • I have the same error in my own app not using ARKit, after creating CADisplayLink: CADisplayLink *displayLink = [CADisplayLink displayLinkWithTarget:self selector:@selector(displayLinkCallback:)]; [displayLink addToRunLoop:[NSRunLoop currentRunLoop] forMode:NSRunLoopCommonModes]; // here error message appear – Slyv Jun 13 '17 at 08:52

1 Answers1

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It happened because of the setting "PrefersOpenGL" in info plist.

Jan F.
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