# When Ever try to run build on Simulator or Tv Device Got command failed using 0.22.3 version **URL:** \ **Category:** Bug Reports\ **Created:** [May 21, 2026, 1:26pm UTC](https://community.amazondeveloper.com/t/when-ever-try-to-run-build-on-simulator-or-tv-device-got-command-failed-using-0-22-3-version/28376 "2026-05-21T13:26:09Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![Rupinder\_Singh](https://avatars.discourse-cdn.com/v4/letter/r/dc4da7/32.png) [@Rupinder\_Singh](https://community.amazondeveloper.com/u/Rupinder_Singh)\ **Post date:** [May 21, 2026, 1:26pm UTC](https://community.amazondeveloper.com/t/when-ever-try-to-run-build-on-simulator-or-tv-device-got-command-failed-using-0-22-3-version/28376/1 "2026-05-21T13:26:09Z")
# ⚠ Before you continue * * * _Before submitting a bug report, please review our troubleshooting documentation at_ [Troubleshoot Issues | Vega Troubleshooting](https://developer.amazon.com/docs/vega/0.21/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](http://Amazon.com)): **Bug Severity** Select one that applies - Impacts operation of app - Blocks current development - Improvement suggestion - Issue with documentation (If selected, please share the doc link and describe the issue) - Other ## 2. Steps to Reproduce 1. `[List the steps for reproducing the bug]` 2. `[Any specific component or method call in React Native triggering the issue]` 3. … ## 3. Observed Behavior _Explain what actually happened, noting any discrepancies or malfunctions._ ```auto ``` ## 4. Expected Behavior _Describe what you expected the SDK to do under normal operation._ ```auto ``` ### 4.a Possible Root Cause & Temporary Workaround _Fill out anything you have tried. If you don’t know, N/A is acceptable_ ```auto ``` ## 5. Logs or crash report _**`(Please make sure to provide relevant logs as attachment)`**_ For crash issues, please refer this guide for faster troubleshooting: [Detect Where the App Crash Originates | Design and Develop Vega Apps](https://developer.amazon.com/docs/vega/0.21/detect-crash.html) - [App/Device Logs](https://developer.amazon.com/docs/vega/0.21/logs.html) - [Crash Logs](https://developer.amazon.com/docs/vega/0.21/loggingctl.html) - [Crash Report](https://developer.amazon.com/docs/vega/0.21/crash-report.html) - For issues with Vega Studio Extension, please share log files from below folders: For v0.22+: ## 6. Environment _Please fill out the fields related to your bug below:_ - **SDK Version:** Run _`vega --version`_ (v0.22+) or _`kepler --version`_ (v0.21 and earlier) and paste output - **App State:** `[Foreground/Background]` - **OS Information:** Please ssh into the device via `vega exec vda shell` (or `kepler exec vda shell` for v0.21 and earlier) and copy the output from `cat /etc/os-release` into the answer section below. Note, if you don’t have a simulator running or device attached, the command 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._ ```auto import { ExampleComponent } from 'custom-sdk'; ``` * * * ## 👉 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._ ```auto ``` 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_ ```auto [N/A or Content / Media Url for testing] ``` **Q: Are there any special headers required to reproduce the issue you are facing?** ```auto [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._ ```auto ``` * * * ## 👉 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._ ```auto ``` ---
**Author:** ![Rupinder\_Singh](https://avatars.discourse-cdn.com/v4/letter/r/dc4da7/32.png) [@Rupinder\_Singh](https://community.amazondeveloper.com/u/Rupinder_Singh)\ **Post date:** [May 21, 2026, 1:27pm UTC](https://community.amazondeveloper.com/t/when-ever-try-to-run-build-on-simulator-or-tv-device-got-command-failed-using-0-22-3-version/28376/3 "2026-05-21T13:27:26Z")
![Screenshot 2026-05-21 at 6.55.38 PM](https://d3mq594dkmpl37.cloudfront.net/original/2X/8/8e001c55981d26f8aa38265e5341e38a437ff519.png) ---
**Author:** ![Ivy](https://dhm3gbtzu79o6.cloudfront.net/user_avatar/community.amazondeveloper.com/ivy/32/5637_2.png) [@Ivy](https://community.amazondeveloper.com/u/Ivy)\ **Post date:** [May 21, 2026, 4:37pm UTC](https://community.amazondeveloper.com/t/when-ever-try-to-run-build-on-simulator-or-tv-device-got-command-failed-using-0-22-3-version/28376/4 "2026-05-21T16:37:24Z")
Hi @Rupinder_Singh, The error is clear from your logs: ` sh: line 0: cd: shaka-setup: No such file or directory` Your postinstall script is trying to cd shaka-setup && ./build.sh &&./copyOutputs.sh, but the shaka-setup directory doesn’t exist yet. If you’re using the Vega Video Sample app with Shaka Player, you need to set up Shaka Player before running npm install: 1. Download the Shaka Player package (e.g., shaka-rel-v4.16.13-r\.tar.gz) 2. Extract it: tar -xzf shaka-rel-v4.16.13-r\.tar.gz 3. Navigate to /shaka-rel/scripts and run ./setup.sh 4. Copy the generated files to your app root as described in the docs 5. Then run npm install Full setup guide: [Play adaptive content (HLS/DASH) with Shaka Player | Design and Develop Vega Apps](https://developer.amazon.com/docs/vega/0.22/media-player-shaka-player.html) If you’re not using Shaka Player in your app, remove the postinstall script from your package.json that references shaka-setup. Also note: your package.json scripts still reference kepler commands (e.g. react-native build-kepler, kepler device install-app). For SDK 0.22+, these should be updated to vega commands (e.g., react-native build-vega, vega device install-app). Warm Regards, Ivy ---
**Author:** ![Ivy](https://dhm3gbtzu79o6.cloudfront.net/user_avatar/community.amazondeveloper.com/ivy/32/5637_2.png) [@Ivy](https://community.amazondeveloper.com/u/Ivy)\ **Post date:** [June 11, 2026, 6:08am UTC](https://community.amazondeveloper.com/t/when-ever-try-to-run-build-on-simulator-or-tv-device-got-command-failed-using-0-22-3-version/28376/5 "2026-06-11T06:08:57Z")