carplay setRootTemplate crash (Allowed classes: (null))

user_2889247 0
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I'm middle of transition from old carplay to new ios15 carplay.

I asked carplay entitlement to apple and have it now.

so I put some sample codes and run.

the code is

func templateApplicationScene(_ templateApplicationScene: CPTemplateApplicationScene, didConnect interfaceController: CPInterfaceController) {
    CPLogger.log("in templateApplicationScene didConnect")
    self.interfaceController = interfaceController
    let screen = CPListTemplate(title: "CarPlay", sections: [])
    self.interfaceController!.setRootTemplate(screen, animated: true, completion: { _,_ in
        })
    }

this method was hit so I think I dit it right from Application Scene Manifest of info.plist.

after that I faced crash and it said (last part is important in this case.)

*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'Unsupported object <CPListTemplate: 0x600001c79b80> <identifier: 8105D933-642B-4111-80D7-C910466237F5, userInfo: (null), tabTitle: (null), tabImage: (null), showsTabBadge: 0> passed to setRootTemplate:animated:completion:. Allowed classes: (null)'

most search result has messages like Thread 1: "Unsupported object <CPInformationTemplate: 0x6000012de010> <identifier: 3444D3F1-ECFF-4953-B543-459286E11371, userInfo: (null), tabTitle: (null), tabImage: (null), showsTabBadge: 0> passed to setRootTemplate:animated:completion:. Allowed classes: {(\n CPTabBarTemplate,\n CPListTemplate,\n CPGridTemplate,\n CPAlertTemplate,\n CPVoiceControlTemplate,\n CPNowPlayingTemplate\n)}".

Allowed classes part has some information. But not mine.

I added proper info to an entitlements info enter image description here

and I have a provisioning that includes carplay-audio option. enter image description here

I have only one result that has 'Allowed classes: (null)' string which is https://githubmemory.com/@oguzhnatly

He said "Such a thing Allowed classes: (null) is almost impossible to happen. Normally, it must contain the name of CarPlay Templates."

and I don't have something useful.

now I'm completely lost...

HELP ME!

thanks

carplay ios15 xcode
3 Answers

I started getting this after switching to a M1 MBP. Does not matter which type of template I try to set as root template. Still works on my old Intel Mac so it seems to be a M1 bug.

EDIT: I FIXED IT!

After skulking around the Apple Dev Forums I found someone with the same problem, but the problem only appeared after adding arm64 to Excluded Architectures.

Excluded Archs

I too had added this to get the Google Places SDK to compile, so removing it was tricky. But Google has released a beta version of the SDK that is compatible with M1, but it needs to be installed manually or via Carthage. I removed the old SDK, removed arm64 from EXCLUDED_ARCHS, installed the beta SDK and it worked! Now I can use the CarPlay Simulator on M1 without errors. Hopefully this helps!

user_37485350

Depending on the kind of CarPlay application you have different templates that you can and cannot present. In the Sections section of the CarPlay Programming Guide you can see which templates are allowed for audio applications. Additionally, I think only a list or tab template is allowed as a root template. Which template are you trying to set as root?

user_20484530

for update in M1 carplay simulator users. Carplay document has been updated and there is new Carplay simulator in additional downloads in apple developer.

this is part of that documents

CarPlay Simulator
CarPlay Simulator is a standalone Mac app that simulates a complete car environment. CarPlay
Simulator is included in the Additional Tools for Xcode package which you can download from
https://developer.apple.com/download/all/.
Using CarPlay Simulator
Locate CarPlay Simulator in the Hardware folder, run it, and connect iPhone using a Lightning
to USB cable. CarPlay starts on iPhone just the same as if you had it connected to a real car.
user_95776260
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