Error: Command failed: vda -s emulator-5554

Sofia_Lozada_Tenorio · October 5, 2025, 5:29am

Before you continue

Before submitting a bug report, please review our troubleshooting documentation at https://developer.amazon.com/docs/kepler-tv/troubleshoot-overview.html.

If you still want to file a bug report, please make sure to fill in all the details below and provide the necessary information.

NOTE: PLEASE ONLY REPORT A SINGLE BUG USING THIS TEMPLATE.
If you’re experiencing multiple issues, please file a separate report for each.

Bug Description

1. Summary

Provide a brief description of the bug in the SDK and its impact on app functionality.

App Name:
App Link on Amazon Appstore (found through Developer Console → Actions column in App List → View on Amazon.com):

Bug Severity
Select one that applies

X Impacts operation of app
X Blocks current development
Improvement suggestion
Issue with documentation (If selected, please share the doc link and describe the issue)
Other

2. Steps to Reproduce

kepler device install-app --device “Simulator” --directory “/Users/sofia.lozada/Documents/client-apps-kepler” --buildType “Debug” --packagePath “/Users/sofia.lozada/Documents/client-apps-kepler/build/private/kepler/com.univision.prendetv/0.1/vega/aarch64/Debug/com.univision.prendetv_aarch64.vpkg”

3. Observed Behavior

Explain what actually happened, noting any discrepancies or malfunctions.

<!-- Answer here -->

4. Expected Behavior

Describe what you expected the SDK to do under normal operation.

2025-10-04 22:46:21.147 [warning] Failed

2025-10-04 22:46:21.147 [warning] ERR: Error: Command failed: vda -s emulator-5554 shell 'vpm install /tmp/com.univision.prendetv_aarch64.vpkg'


2025-10-04 22:46:21.170 [warning] Kepler operation FAILED due to an irrecoverable error: Failed
Additional logs can be found at /Users/sofia.lozada/.kepler/logs

2025-10-04 22:48:27.277 [info] kepler device install-app --device "Simulator" --directory "/Users/sofia.lozada/Documents/client-apps-kepler" --buildType "Debug" --packagePath "/Users/sofia.lozada/Documents/client-apps-kepler/build/private/kepler/com.univision.prendetv/0.1/vega/aarch64/Debug/com.univision.prendetv_aarch64.vpkg"
2025-10-04 22:48:29.143 [warning] Failed

2025-10-04 22:48:29.143 [warning] ERR: Error: Command failed: vda -s emulator-5554 shell 'vpm install /tmp/com.univision.prendetv_aarch64.vpkg'


2025-10-04 22:48:29.164 [warning] Kepler operation FAILED due to an irrecoverable error: Failed
Additional logs can be found at /Users/sofia.lozada/.kepler/logs

2025-10-04 23:25:08.054 [info] kepler device install-app --device "Simulator" --directory "/Users/sofia.lozada/Documents/client-apps-kepler" --buildType "Debug" --packagePath "/Users/sofia.lozada/Documents/client-apps-kepler/build/private/kepler/com.univision.prendetv/0.1/vega/aarch64/Debug/com.univision.prendetv_aarch64.vpkg"

4.a Possible Root Cause & Temporary Workaround

Fill out anything you have tried. If you don’t know, N/A is acceptable

N/A

5. Logs or crash report

(Please make sure to provide relevant logs as attachment)

For crash issues, please refer this guide for faster troubleshooting: https://developer.amazon.com/docs/kepler-tv/detect-crash.html.

App/Device Logs
Crash Logs
Crash Report

For issues with Kepler Studio Extension, please share log files from below folders:

 ~/.vscode/extensions/amazon.kepler-extension-<version>/ExtensionLogs
 ~/.vscode/extensions/amazon.kepler-ui-extension-<version>/ExtensionLogs

E:
2025-10-04 23:21:19 info [DeviceManagerHandler]: runCommandsInternal: emulator-5554, pm has-feature com.fireos.sdk.kepler
2025-10-04 23:21:20 info [DeviceManagerHandler]: /var/folders/xj/cy6bdktn2q3dcrfml053_0r00000gp/T/.kdm_oNmJU9/.kdm_isFOSPlusDeviceType
2025-10-04 23:21:20 info [DeviceManagerHandler]: code: 127, output: 0, error: 51
2025-10-04 23:21:20 debug [DeviceManagerHandler]: Found Simulator device: emulator-5554
2025-10-04 23:21:20 debug [DeviceManagerHandler]: Found Vvrp device: emulator-5554
2025-10-04 23:21:20 info [DeviceManagerHandler]: runCommandsInternal: emulator-5554, vpm list apps isVegaDeviceType
2025-10-04 23:21:20 info [DeviceManagerHandler]: runCommandsInternal: emulator-5554, vdcm get com.amazon.devconf/system/device-info/device-type-id,uname -m,vdcm get com.amazon.devconf/system/device-info/profile,uname -n,vsm developer-mode,vdcm get com.amazon.devconf/system/device-info/product-name,vdcm get com.amazon.devconf/system/device-info/build-desc getDeviceIdTypeInfo
2025-10-04 23:21:20 debug [DeviceManagerHandler]: Found Simulator device: emulator-5554
2025-10-04 23:21:20 info [DeviceManagerHandler]: runCommandsInternal: emulator-5554, uname -m isConnected
2025-10-04 23:21:20 debug [DeviceManagerHandler]: Enable port forwarding command generation successful
2025-10-04 23:21:21 debug [EnvUtils]: Environment variable KEPLER_SDK_PATH: found
2025-10-04 23:21:21 debug [OperationalMetricClient]: creating new telemetry client with componentName=keplercli keplerCliVersion=0.200.0 sdkPath=/Users/sofia.lozada/kepler/sdk/0.200.0
2025-10-04 23:21:21 info [Timing]: device-StartPortForwardingHandler.handle completed successfully in 1.2 s
2025-10-04 23:21:21 info [EnvUtils]: getting absolute path for /Users/sofia.lozada/kepler/sdk/0.20.3719 (from env variable KEPLER_SDK_PATH)
2025-10-04 23:21:21 info [EnvUtils]: Base path for installation: /Users/sofia.lozada/kepler
Installation path: /Users/sofia.lozada/kepler/sdk/0.200.0
2025-10-04 23:21:21 debug [OperationalMetricClient]: emitting metric with payload: {“operationName”:“device”,“subOperationName”:“StartPortForwardingHandler.handle”,“metricType”:“Count”,“metricValue”:1}
2025-10-04 23:21:21 debug [OperationalMetricClient]: emitting metric with payload: {“basePayload”:{“metricType”:“Latency”,“operationName”:“device”,“metricValue”:1.195140708,“subOperationName”:“StartPortForwardingHandler.handle”},“isOperational”:true,“isBehavioral”:true}
2025-10-04 23:21:21 debug [OperationalMetricClient]: Telemetry service already running with PID: 27482
2025-10-04 23:21:21 debug [OperationalMetricClient]: Data successfully appended to file
2025-10-04 23:21:21 debug [OperationalMetricClient]: Telemetry service already running with PID: 27482
2025-10-04 23:21:21 debug [OperationalMetricClient]: Data successfully appended to file
2025-10-04 23:21:22 debug [DeviceManagerHandler]: Created KeplerDeviceManager
2025-10-04 23:21:22 info [DeviceManagerHandler]: VDA check returned: 0
O: Vega Device Adapter version 2.1.0
Server Version 41
Platform Version 34.0.4

6. Environment

Please fill out the fields related to your bug below:

SDK Version: Output of kepler --version 0.20.3719
App State: [Foreground/Background]
OS Information
Please ssh into the device via kepler exec vda shelland copy the output from cat /etc/os-releaseinto the answer section below. Note, if you don’t have a simulator running or device attached kepler exec vda shell will respond with vda: no devices/emulators found
```
 
```

7. Example Code Snippet / Screenshots / Screengrabs

Include any relevant code or component setup in React Native that can help reproduce the bug.

import { ExampleComponent } from 'custom-sdk';

<ExampleComponent config={{ key: 'value' }} />

Playback Issues

If this is a playback issue, please provide your content URL, any pre-conditions (like geo-location), and let us know if it’s x86 or arm7.


<!-- Describe your playback issue if applicable -->

Please share the following details in addition:_

Player SDK: [Bitmovin, Shaka, ...]
Player SDK Version: [e.g. 1.23]
- Audio Codecs: [AAC, ...]
- Video Codecs: [h.264, mp4]
- Manifest Types: [m3u8, dash, etc ..]

Q: If applicable, please provide your media/content url
If this is created dynamically, tokenized, etc please provide a way for us to access it

[N/A or Content / Media Url for testing]

Q: Are there any special headers required to reproduce the issue you are facing?

[N/A or Insert Headers]

Additionally please provide the following if possible
Provide Screenshots / Screengrabs / Logs. Please include as much information as you can that will help debug.

<!-- Answer here if applicable -->

Additional Context

Any Additional Context you would like to provide?
Add any other relevant information, such as recent updates to the SDK, dependencies, or device OS that may affect the bug.

Fast refresh is also not working, NO connection to metro.

{
  "name": "com.univision.prendetv",
  "version": "0.0.0",
  "files": [
    "dist"
  ],
  "scripts": {
    "clean": "rm -rf bundle node_modules kepler-build assets dist",
    "build": "npm-run-all compile lint:fix test",
    "compile": "tsc -p tsconfig.json",
    "test:snapshot": "jest --colors --updateSnapshot",
    "start": "npm run create-translations && npm run start:dev",
    "start:prod": "npm run create-translations && NODE_ENV=prod node node_modules/react-native/local-cli/cli.js start",
    "start:stg": "npm run create-translations && NODE_ENV=stg node node_modules/react-native/local-cli/cli.js start",
    "start:qa": "npm run create-translations && NODE_ENV=qa node node_modules/react-native/local-cli/cli.js start",
    "start:dev": "npm run create-translations && NODE_ENV=dev node node_modules/react-native/local-cli/cli.js start",
    "test": "jest --colors --coverage",
    "test:clearCache": "jest --clearCache",
    "lint": "eslint src --ext .ts,.tsx",
    "start:simulator": "kepler device simulator start",
    "bundle-kepler:debug": "react-native bundle --platform kepler --entry-file index.js --bundle-output build/lib/rn-bundles/Debug/index.bundle --assets-dest build/lib/rn-bundles/Debug/ --sourcemap-output build/lib/rn-bundles/Debug/index.bundle.map",
    "create-component": "plop component",
    "prepare": "husky",
    "create-translations": "i18next-resources-for-ts interface -i src/translations/ -o src/types/resources.d.ts",
    "postinstall": "patch-package",
    "app:launch": "kepler device launch-app",
    "app:build": "run-s build:release && npm run app:install && npm run app:launch -- -b Release",
    "create-bundle-dirs:debug": "mkdir -p build/lib/rn-bundles/Debug/",
    "hermes-kepler:debug": "react-native hermes-kepler --bundle-path build/lib/rn-bundles/Debug/index.bundle --out build/lib/rn-bundles/Debug/index.hermes.bundle",
    "build:js:debug": "npm run create-translations && run-s create-bundle-dirs:debug bundle-kepler:debug hermes-kepler:debug",
    "create-bundle-dirs:release": "mkdir -p build/lib/rn-bundles/Release/ && mkdirp build/private/debugging/Release/",
    "bundle-kepler:release": "react-native bundle --platform kepler --entry-file index.js --dev false --bundle-output build/lib/rn-bundles/Release/index.bundle --assets-dest build/lib/rn-bundles/Release/ --sourcemap-output build/private/debugging/Release/index.bundle.map",
    "hermes-kepler:release": "react-native hermes-kepler --bundle-path build/lib/rn-bundles/Release/index.bundle --out build/lib/rn-bundles/Release/index.hermes.bundle",
    "build:js:release": "run-s create-bundle-dirs:release bundle-kepler:release hermes-kepler:release",
    "build:native:debug": "kepler build -b Debug",
    "build:debug": "npm run create-translations && react-native build-kepler --build-type Debug --build-number 182",
    "build:native:release": "kepler build -b Release",
    "build:release": "npm run create-translations && react-native build-kepler --build-type Release --build-number 182",
    "build:app": "npm run create-translations && npm-run-all build:debug build:release",
    "build:native": "kepler build -b Debug -b Release",
    "build:module": "run-s build build:native",
    "prepack": "run-s build:module"
  },
  "overrides": {
    "react-native-gesture-handler": "$react-native-gesture-handler",
    "@react-native-async-storage/async-storage": "npm:@amzn/react-native-async-storage__async-storage@~2.0.0"
  },
  "lint-staged": {
    "*.{js,jsx,ts,tsx}": "eslint --fix"
  },
  "dependencies": {
    "@akta-tech/lura-player-react-native": "https://w3.mp.lura.live/lura-player/react-native/4.3.1/@akta-tech/lura-player-react-native.tgz",
    "@akta-tech/lura-player-react-native-conviva-plugin": "https://w3.mp.lura.live/lura-player/react-native/4.3.1/@akta-tech/lura-player-react-native-conviva-plugin.tgz",
    "@akta-tech/lura-player-react-native-ui": "https://w3.mp.lura.live/lura-player/react-native/4.3.1/@akta-tech/lura-player-react-native-ui.tgz",
    "@amzn/expo-asset": "~2.0.0",
    "@amzn/expo-constants": "~2.0.0",
    "@amzn/expo-font": "~2.0.0",
    "@amzn/headless-task-manager": "^1.0.0",
    "@amzn/kepler-media-account-login": "^1.1.0",
    "@amzn/kepler-media-controls": "^1.0.8",
    "@amzn/kepler-media-content-launcher": "^2.0.0",
    "@amzn/kepler-ui-components": "^2.0.2",
    "@amzn/keplerscript-appstore-iap-lib": "~2.12.2",
    "@amzn/keplerscript-epg": "^2.4.0",
    "@amzn/keplerscript-react-native-reanimated": "^2.0.1731106252",
    "@amzn/keplerscript-turbomodule-api": "^1.0.0",
    "@amzn/package-manager-lib": "~1.0.0",
    "@amzn/react-linear-gradient": "^2.0.1746661155",
    "@amzn/react-native-device-info": "^2.0.1746661155",
    "@amzn/react-native-fast-image": "^2.0.1746661155",
    "@amzn/react-native-gesture-handler": "^2.0.1731106252",
    "@amzn/react-native-kepler": "~2.0.0",
    "@amzn/react-native-safe-area-context": "~2.0.0",
    "@amzn/react-native-screens": "~2.0.0",
    "@amzn/react-native-svg": "^2.0.1746661155",
    "@amzn/react-native-w3cmedia": "^2.1.68",
    "@amzn/react-navigation__core": "~2.0.0",
    "@amzn/react-navigation__drawer": "~2.0.0",
    "@amzn/react-navigation__native": "~2.0.0",
    "@amzn/react-navigation__routers": "~2.0.0",
    "@amzn/react-navigation__stack": "~2.0.0",
    "@react-native-async-storage/async-storage": "npm:@amzn/react-native-async-storage__async-storage@~2.0.0",
    "@segment/analytics-react-native": "^2.20.0-beta.0",
    "@segment/analytics-react-native-plugin-kepler": "file:segment-analytics-react-native-plugin-kepler-0.4.0.tgz",
    "@shopify/flash-list": "1.8.3",
    "@tanstack/react-query": "5.64.0",
    "axios": "^1.6.7",
    "date-fns": "^4.1.0",
    "expo": "~50.0.0",
    "graphql": "^16.8.1",
    "graphql-request": "7.1.2",
    "i18next": "^23.8.2",
    "lodash.get": "^4.4.2",
    "react": "18.2.0",
    "react-i18next": "^14.0.1",
    "react-native": "0.72.0",
    "react-native-gesture-handler": "npm:@amzn/react-native-gesture-handler@~2.0.0",
    "react-native-render-html": "6.3.4",
    "react-native-svg": "npm:@amzn/react-native-svg@~2.0.1722663255",
    "react-native-uuid": "^2.0.1",
    "use-debounce": "^10.0.3",
    "zustand": "^4.5.0"
  },
  "resolutions": {
    "metro": "0.76.5",
    "@types/react": "^18"
  },
  "devDependencies": {
    "@amzn/kepler-cli-platform": "^0",
    "@amzn/kepler-performance-api": "^0.0.1",
    "@babel/core": "~7.22.8",
    "@babel/plugin-transform-private-methods": "^7.27.1",
    "@babel/runtime": "~7.22.8",
    "@react-native-community/cli": "11.3.2",
    "@react-native-community/eslint-config": "~2.0.0",
    "@react-native/eslint-config": "~0.72.2",
    "@react-native/metro-config": "^0.72.6",
    "@testing-library/react-native": "^11.5.4",
    "@types/crypto-js": "^4.2.2",
    "@types/jest": "~28.1.8",
    "@types/react": "^18.0.24",
    "@types/react-native-dotenv": "^0.2.2",
    "@types/react-test-renderer": "^18.0.0",
    "@typescript-eslint/eslint-plugin": "^5.62.0",
    "@typescript-eslint/parser": "^5.62.0",
    "babel-jest": "~28.1.3",
    "babel-plugin-transform-remove-console": "^6.9.4",
    "concurrently": "^8.2.2",
    "eslint": "~8.57.0",
    "eslint-config-airbnb": "^19.0.4",
    "eslint-config-airbnb-typescript": "^16.2.0",
    "eslint-import-resolver-typescript": "^2.4.0",
    "eslint-plugin-import": "^2.24.2",
    "eslint-plugin-jest": "^26.0.0",
    "eslint-plugin-jsdoc": "^46.8.2",
    "eslint-plugin-jsx-a11y": "^6.4.1",
    "eslint-plugin-oxlint": "0.1.0",
    "eslint-plugin-react": "^7.25.1",
    "eslint-plugin-react-hooks": "^4.3.0",
    "eslint-plugin-simple-import-sort": "^5.0.3",
    "husky": "^9.0.11",
    "i18next-resources-for-ts": "^1.5.0",
    "jest": "~28.1.3",
    "lint-staged": "^15.2.10",
    "metro-react-native-babel-preset": "~0.76.9",
    "npm-run-all": "^4.1.5",
    "patch-package": "^8.0.0",
    "plop": "^4.0.1",
    "prettier": "^2.8.8",
    "react-native-dotenv": "~3.4.11",
    "react-test-renderer": "18.2.0",
    "ts-jest": "~28.0.8",
    "typescript": "~4.9.5"
  },
  "engines": {
    "node": "18.19.0"
  },
  "kepler": {
    "projectType": "application",
    "appName": "prendetv",
    "targets": [
      "tv"
    ],
    "api": 0.1
  }
}

Ivy_Mahajan · October 6, 2025, 8:20am

Hi @Sofia_Lozada_Tenorio
Thanks for writing. We are looking into this and will update you soon!
Warm regards,
Ivy

Siva_Prakash · October 6, 2025, 2:42pm

Hi @Sofia_Lozada_Tenorio,

Our team was unable to reproduce this issue. Also, we do not see related logs from the content pasted in this post. Would you be able to share log files error-<date>.log and kepler-<date>.log from ~/.kepler/logs as an attachment?

Additionally, please try below and share your observations:

If you have a physical device, please try installing the same VPKG file with similar command.
Are you facing same issue with Release build too?
Check if VPKG installation fails via both Vega Studio Extension and CLI
Install latest SDK from here and see if issue persists.

Try a clean build (sample commands for clean)

npm start -- --reset-cache // clears metro cache
npm run clean // this assumes that you have a "clean" script in your package.json
rm package-lock.json
npm install
npm run build:app

Regards,
Siva

Sofia_Lozada_Tenorio · October 6, 2025, 10:28pm

this was solved using

lsof -t -i:8081

and then

kill

system · October 20, 2025, 10:28pm

This topic was automatically closed 14 days after the last reply. New replies are no longer allowed.

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