Unhandled Promise Rejection Error: Call `.startRecording()`

macOS version: 10.14

Kap version:

Steps to reproduce

• Record a video
• Play the recording
• Select a Window

Current behaviour

Unhandled Promise Rejection
Error: Call `.startRecording()` first
    at Aperture.stopRecording (/Applications/Kap.app/Contents/Resources/app.asar/node_modules/aperture/index.js:141:13)
    at EventEmitter.<anonymous> (file:///Applications/Kap.app/Contents/Resources/app.asar/dist/renderer/js/main.js:207:39)
    at Generator.next (<anonymous>)
    at step (file:///Applications/Kap.app/Contents/Resources/app.asar/dist/renderer/js/main.js:39:191)
    at file:///Applications/Kap.app/Contents/Resources/app.asar/dist/renderer/js/main.js:39:437
    at Promise (<anonymous>)
    at EventEmitter.<anonymous> (file:///Applications/Kap.app/Contents/Resources/app.asar/dist/renderer/js/main.js:39:99)
    at EventEmitter.stopRecording (file:///Applications/Kap.app/Contents/Resources/app.asar/dist/renderer/js/main.js:223:20)

Expected behaviour

It should not throw the error.

[nmccrea-db]

Getting the exact same error. Here’s a bit more info:

macOS: Version 10.14.2 Kap: Version 2.2.0 (2.2.0.880)

I opened the application and it asked for permission to use the microphone. It’s never asked me that before so I’m assuming it’s due to a version update.

I said no.

When I start a recording, the following error messages pop up.

(“Recording error” pops up first, and then “aperture quit unexpectedly” pops up less than a second later.)

Here is my stab at prettifying the content of the error message:

Command failed: /Applications/Kap.app/Contents/Resources/app.asar.unpacked/node_modules/aperture/aperture {
  "destination":"file:///private/var/folders/2p/5pbqmrms5c90c9x1szvzk2hw0000gn/T/e960e9cfa3f3c2e128ffdb7e43697701.mp4",
  "fps":30,"showCursor":true,"highlightClicks":true,"displayId":"69948396",
  "audioDeviceId":"AppleHDAEngineInput:1F,3,0,1,0:1",
  "cropRect":[[514,286],[1209,768]]
}
Fatal error: Error raised at top level:
  Error Domain=AVFoundationErrorDomain
  Code=-11852 "Cannot use Built-in Microphone"
  UserInfo={
    NSLocalizedFailureReason=This app is not authorized to use Built-in Microphone.,
    AVErrorDeviceKey=<AVCaptureHALDevice: 0x7fc964413110 [Built-in Microphone][AppleHDAEngineInput:1F,3,0,1,0:1]>,
    NSLocalizedDescription=Cannot use Built-in Microphone
  }
  : file /BuildRoot/Library/Caches/com.apple.xbs/Sources/swiftlang/swiftlang-900.0.69.2/src/swift/stdlib/public/core/ErrorType.swift,
  line 187

This clearly indicates the problem is due to not having access to the microphone.

At this point, Kap thinks it is recording (the stop button is shown in the menubar icon). Whether it actually is or not I have no idea.

When I click the menubar icon to stop the recording, I get the identical error posted by @abranhe.

I do not get given a recording at this point. Menubar still shows the stop button. Application is essentially unusable.

Workaround

Re-enabling the microphone for Kap fixes the problem. Open System Preferences, then go to Security & Privacy > Privacy > Microphone and enable microphone access for Kap.

I don’t think it should be necessary for Kap to have microphone access to work. I use it for screen captures and don’t ever need or want it recording audio, which is why I disabled mic access originally. Hope this gets fixed in future versions!

Thanks for an awesome and extremely useful piece of software otherwise. Keep up the great work.

[wosevision]

@skllcrn Nope, no error! I haven’t gotten the unhandled promise rejection error in this beta yet. Still no audio functionality though. The app prompted for use of my microphone but nothing recognized still; I guess this is a separate issue now since the original error seems to be gone!