NativeScript / NativeScript/nativescript-cli

Livesync not working for iOS simulator

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bug-pending-triage
Dominant language
JavaScript
Stars
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Forks
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Avg merge
1d 9h
Merged PRs (30d)
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Description

Issue Description

When I run ns debug ios on simulator, the app is installed but not launched. When I launch it, it works. After saving changes in code, those are compiled and installed, but app is not restarted. If I manually restart the app in simulator, the changes are there. Android works fine in emulator.
There is one error in console, when I run ns debug ios or ns run ios, but it doesn't re-appear after that, on livesync:

Installing on device 50C0BB46-3D96-4FD7-9FC9-83613FA3D3E8...
Successfully installed on device with identifier '50C0BB46-3D96-4FD7-9FC9-83613FA3D3E8'.
Successfully transferred all files on device 50C0BB46-3D96-4FD7-9FC9-83613FA3D3E8.
Restarting application on device 50C0BB46-3D96-4FD7-9FC9-83613FA3D3E8...
Error while trying to start application org.nativescript.example on device 50C0BB46-3D96-4FD7-9FC9-83613FA3D3E8. Error is: Command xcrun with arguments simctl terminate 50C0BB46-3D96-4FD7-9FC9-83613FA3D3E8 org.nativescript.example failed with exit code 3. Error output:
 An error was encountered processing the command (domain=NSPOSIXErrorDomain, code=3):
Application termination failed.
FBSSystemService reported failure without an error, possibly because the app is not currently running.

Stack:

OS: darwin x64
MacOS Monterey 12.2.1
xCode v13.3 (13E113)
Node v16.14.1
npm v8.5.0
NativeScript CLI v8.2.2
Angular CLI v8.3.21

package.json

{
  "name": "some-app",
  "main": "./src/main.ts",
  "version": "1.0.0",
  "private": true,
  "dependencies": {
    "@angular/animations": "~13.2.0",
    "@angular/common": "~13.2.0",
    "@angular/compiler": "~13.2.0",
    "@angular/core": "~13.2.0",
    "@angular/forms": "~13.2.0",
    "@angular/platform-browser": "~13.2.0",
    "@angular/platform-browser-dynamic": "~13.2.0",
    "@angular/router": "~13.2.0",
    "@nativescript/angular": "^13.0.0",
    "@nativescript/core": "8.2.1-next-03-19-2022-2010078648",
    "@nativescript/theme": "~3.0.2",
    "moment": "^2.29.1",
    "nativescript-phone": "^3.0.3",
    "nativescript-ui-sidedrawer": "^10.0.2",
    "rxjs": "~7.5.0",
    "zone.js": "~0.11.5"
  },
  "devDependencies": {
    "@angular-devkit/build-angular": "~13.2.0",
    "@angular/compiler-cli": "~13.2.0",
    "@nativescript/android": "8.2.2",
    "@nativescript/ios": "8.2.2",
    "@nativescript/types": "~8.2.0",
    "@nativescript/webpack": "~5.0.6",
    "@ngtools/webpack": "~13.2.0",
    "nativescript": "^8.2.2",
    "typescript": "~4.5.5"
  }
}
Reproduction

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Relevant log output (if applicable)

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Environment

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Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start with the ns debug ios and ns run ios livesync restart path, focusing on the reported xcrun simctl terminate failure when the app is not running. Done means the iOS simulator launches the app initially and restarts it after changes, while Android emulator behavior remains unaffected.

Written by the indexing model from the issue text.

Assessment

Tech stack
ios, javascript
Domain
cli, mobile-dev
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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