Webkit violating sandbox for Audio AUUC

Question

Created Jul ’16

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After installing macOS Sierra beta 3, I get an error trying to stream any video content from any site including WWDC. Webkit Content appears to be caught in a sandbox trap:

SandboxViolation: com.apple.WebKit(6434) deny iokit-open AudioAUUC

Violation: deny iokit-open AudioAUUC

Process: com.apple.WebKit [6434]

Path: /System/Library/Frameworks/WebKit.framework/Versions/A/XPCServices/com.apple.WebKit.WebContent.xpc/Contents/MacOS/com.apple.WebKit.WebContent

radar://27425242 has been filed

Does anyone have a workaround?

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Answer 1

musicadi OP

Aug ’17

Hi,

Any idea what this is?

Seeing similar errors here in Sierra 10.12.6 and I sometimes get no sound from Logic Pro X 10.3.2

Using a Tascam US-1800 USB Audio interface

SandboxViolation: Mail(28074) deny(1) iokit-open AudioUserClientTascamUS1800

SandboxViolation: coreaudiod(198) deny(1) iokit-open AudioUserClientTascamUS1800

SandboxViolation: com.apple.WebKit(30587) deny(1) iokit-open AudioUserClientTascamUS1800

SandboxViolation: AirPlayUIAgent(412) deny(1) iokit-open AudioUserClientTascamUS1800

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