Recording fails with "We could not allocate necessary AV objects to perform the recording"

[ChaosCoder]

I tried to use snaptake to record a video of my app. Generating the recordingFlag.txt works, but starting to record the video does not.

The error is the following when running IO.popen("xcrun simctl io booted recordVideo '#{path}'") inside the Listen.to-block:

Couldn't create an asset writer for writing video frames: allocationErrorError starting video recorder: Error Domain=simctl.SimulatorError Code=2 "We could not allocate necessary AV objects to perform the recording.".
An error was encountered processing the command (domain=simctl.SimulatorError, code=2):
We could not allocate necessary AV objects to perform the recording.

If I remove Listen.to and just manually start recording the same way within fastlane it works. Is that a permission problem because of different processes? Did you ever stumbled across this?

I found this when researching the problem: https://developer.apple.com/forums/thread/131926 and https://twitter.com/thesunshinejr/status/1245730408282677255 but it seams no one was able to fix that.

Here is the full output:

[21:06:06]: ▸ UISnapshots
/Users/ChaosCoder/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/fastlane-2.168.0/credentials_manager/lib/credentials_manager/appfile_config.rb:34: warning: conflicting chdir during another chdir block
/Users/ChaosCoder/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/fastlane-2.168.0/credentials_manager/lib/credentials_manager/appfile_config.rb:34: warning: conflicting chdir during another chdir block
[21:06:15]: Recording video now in screenshots/de-DE/iPhone 12 Pro-Preview.mp4
/Users/ChaosCoder/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/fastlane-2.168.0/credentials_manager/lib/credentials_manager/appfile_config.rb:34: warning: conflicting chdir during another chdir block
/Users/ChaosCoder/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/fastlane-2.168.0/credentials_manager/lib/credentials_manager/appfile_config.rb:34: warning: conflicting chdir during another chdir block
Couldn't create an asset writer for writing video frames: allocationErrorError starting video recorder: Error Domain=simctl.SimulatorError Code=2 "We could not allocate necessary AV objects to perform the recording.".
An error was encountered processing the command (domain=simctl.SimulatorError, code=2):
We could not allocate necessary AV objects to perform the recording.
[21:06:21]: ▸     ✓ testPreview (15.640 seconds)
/Users/ChaosCoder/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/fastlane-2.168.0/credentials_manager/lib/credentials_manager/appfile_config.rb:34: warning: conflicting chdir during another chdir block
[21:06:21]: ▸ 	 Executed 1 test, with 0 failures (0 unexpected) in 15.640 (15.643) seconds
[21:06:21]: ▸ 
/Users/ChaosCoder/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/fastlane-2.168.0/credentials_manager/lib/credentials_manager/appfile_config.rb:34: warning: conflicting chdir during another chdir block
[21:06:21]: Video recorded in screenshots/de-DE/iPhone 12 Pro-Preview.mp4
/Users/ChaosCoder/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/fastlane-2.168.0/credentials_manager/lib/credentials_manager/appfile_config.rb:34: warning: conflicting chdir during another chdir block
/Users/ChaosCoder/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/fastlane-2.168.0/credentials_manager/lib/credentials_manager/appfile_config.rb:34: warning: conflicting chdir during another chdir block
[21:06:22]: ▸ 2020-11-28 21:06:22.147 xcodebuild[14107:10155506] [MT] IDETestOperationsObserverDebug: 21.744 elapsed -- Testing started completed.
[21:06:22]: ▸ 2020-11-28 21:06:22.148 xcodebuild[14107:10155506] [MT] IDETestOperationsObserverDebug: 0.000 sec, +0.000 sec -- start
[21:06:22]: ▸ 2020-11-28 21:06:22.148 xcodebuild[14107:10155506] [MT] IDETestOperationsObserverDebug: 21.744 sec, +21.744 sec -- end
[21:06:23]: ▸ Test Succeeded

(I get a lot of chdir-warnings, but these are not the problem, I think.)

[antranapp]

I get the same error right after following these tutorial https://www.vinzius.com/post/app-store-previews-guidelines-conversion-tips-ffmpeg/

@ChaosCoder, have you been able to solve the problem?

[ChaosCoder]

Unfortunately not and I gave up using Snaptake. Good luck!

[Lausbert]

Sorry guys, this is no maintained Open Source project :) anyway good luck with everything you are up to.

[Scytalion]

"Couldn't create an asset writer for writing video frames: allocationErrorError starting video recorder"
means that the path is not correct/available. You can try the changes from my pull request.