ios-sim not found when trying to debug iOS app

[indiejames]

I have an iOS project that builds and runs fine under XCode and I have installed ios-sim. I'm using the following xcodebuild-tools.json:

{
"sdk": "iphonesimulator11.3",
"workspace": "${workspaceRoot}/Barriers.xcworkspace",
"scheme": "Barriers",
"debugConfigurations": [
{
"name": "Simulator",
"cwd": "${buildPath}",
"program": "ios-sim",
"args": [
"launch", "Barriers.app/",
"--devicetypeid", "com.apple.CoreSimulator.SimDeviceType.iPhone-8, 11.3"
]
}
]
}

When I invoke Xcodebuildtools: Launch Debug Sesssion the build succeeds, but that is followed with an error dialog that syas "launch: program 'ios-sim' does not exist". I have tried changing ios-sim to /usr/local/bin/ios-sim in the xcodebuild-tools.json file, but this does not help.

[sterin]

Hi,

I was unable to reproduce the problem on my machine (macOS 10.13.5, XCode 9.4). To help debug the problem I've added a new iOS example to the repository.

Please clone the repository and open vscode in examples/hellloworld-ios. You may need to updated the SDK_VERSION variable to reflect the available SDKs.

Let me know if this changes anything.

BTW, do you have ios-sim installed and running from the command line?

Baruch

[liuduoios]

I have the same issue.
VSCode shows "launch: program 'ios-sim' does not exit" when debugging.
The ios-sim has been installed definitely. Because run without debugging is no problem.

Following my xcodebuild-tools.json:

{
    "variables": {
        "SDK_VERSION": "12.1"
    },
    "sdk": "iphonesimulator${SDK_VERSION}",
    "workspace": "${workspaceRoot}/XXXX.xcworkspace",
    "scheme": "XXXX",
    "debugConfigurations": [
        {
            "name": "Simulator",
            "cwd": "${buildPath}",
            "program": "ios-sim",
            "args": [
                "launch", "XXXX.app/",
                "--devicetypeid",  "com.apple.CoreSimulator.SimDeviceType.iPhone-7, ${SDK_VERSION}"
            ]
        }        
    ]
}

My environment:
macOS 10.14
Xcode 10.1

[sterin]

I know it's not very comforting, but it works on my machine.

As a workaround, could you try replacing

"program": "ios-sim",
With the full path to ios-sim? on my machine it's

"program": "/usr/local/bin/ios-sim",

How did you install ios-sim? where is it located on your machine? which node.js version do you use, and how did you install node.js? did you use Homebrew for that?

Baruch

[broegaard]

I also have this problem. I have checked out the current master (a415f24) and only changed SDK_VERSION to "12.2" in examples/helloworld-ios/project/.vscode/xcodebuild-tools.json.

When I try to run the "Xcodebuild-tools: Launch Debug Session" I am meet with the following message:

Unable to start debugging. Program path '/usr/local/bin/ios-sim' is missing or invalid.

LLDB failed with message: Command 'file-exec-and-symbols'. Target binary '/usr/local/bin/ios-sim' is invalid. error: '/usr/local/bin/ios-sim' doesn't contain any 'host' platform architectures: x86_64h, x86_64, i386

This may occur if the process's executable was changed after the process was started, such as when installing an update. Try re-launching the application or restarting the machine.

It have two buttons: "Cancel" and "Open launch.json". If I press "Open launch.json" it opens helloworld-ios/project/.vscode/launch.json. I cannot find the file git history.

Mine looks like this:

{
    // Use IntelliSense to learn about possible attributes.
    // Hover to view descriptions of existing attributes.
    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
    "version": "0.2.0",
    "configurations": [
        {
            "name": "(lldb) Launch",
            "type": "cppdbg",
            "request": "launch",
            "program": "enter program name, for example ${workspaceFolder}/a.out",
            "args": [],
            "stopAtEntry": false,
            "cwd": "${workspaceFolder}",
            "environment": [],
            "externalConsole": true,
            "MIMode": "lldb"
        }
    ]
}

My xcodebuild-tools.json:

{
    "variables": {
        "SDK_VERSION": "12.2"
    },
    "sdk": "iphonesimulator${SDK_VERSION}",
    "workspace": "${workspaceRoot}/helloworld-ios.xcworkspace",
    "scheme": "build",
    "debugConfigurations": [
        {
            "name": "Simulator",
            "cwd": "${buildPath}",
            "program": "/usr/local/bin/ios-sim",
            "args": [
                "launch", "project.app/",
                "--devicetypeid",  "com.apple.CoreSimulator.SimDeviceType.iPhone-7, ${SDK_VERSION}"
            ]
        }        
    ]
}

Can somebody please post theirs launch.json

[igorpakushin]

@broegaard, I don't think launch.json file is needed.

I have the same issue with an example program. It shows the following error

Unable to start debugging. Program path '/usr/local/bin/ios-sim' is missing or invalid.

LLDB failed with message: Command 'file-exec-and-symbols'. Target binary '/usr/local/bin/ios-sim' is invalid. error: '/usr/local/bin/ios-sim' doesn't contain any 'host' platform architectures: x86_64h, x86_64, i386, x86_64

This may occur if the process's executable was changed after the process was started, such as when installing an update. Try re-launching the application or restarting the machine.

The build itself succeeds and I can manually run it like

ios-sim launch /Users/abc/.vscode/extensions/sterin.xcodebuild-tools-0.0.7/examples/helloworld-ios/build/Debug/project.app -d "com.apple.CoreSimulator.SimDeviceType.iPhone-12, 14.3"

[igorpakushin]

This just seems like it is trying to debug /usr/local/bin/ios-sim instead of the program.app... 🤷