# SDK **URL:** https://forum.webostv.developer.lge.com/c/sdk/34.md [Latest](https://forum.webostv.developer.lge.com/latest.md) · [Categories](https://forum.webostv.developer.lge.com/categories.md) --- ## [About the SDK category](https://forum.webostv.developer.lge.com/t/about-the-sdk-category/65)
**Author:** [@SR\_Kang](https://forum.webostv.developer.lge.com/u/SR_Kang)\ **Replies:** 1\ **Last updated:** [February 17, 2025, 12:17am UTC](https://forum.webostv.developer.lge.com/t/about-the-sdk-category/65 "2025-02-17T00:17:12Z")
Ask questions here if you experience problems in installing or using tools. For basic information about using tools, see Tools. --- ## [Developer mode problem](https://forum.webostv.developer.lge.com/t/developer-mode-problem/766)
**Author:** [@user490](https://forum.webostv.developer.lge.com/u/user490)\ **Replies:** 70\ **Last updated:** [October 23, 2026, 3:39am UTC](https://forum.webostv.developer.lge.com/t/developer-mode-problem/766 "2026-10-23T03:39:30Z")
Hi. From yesterday I have a problem with activation Developer mode on all my Smart TV LG devices from 18 to 22 y. When I enter user ID & Password and press login btn, I get next notification: “Try again. To proceed, visi… --- ## [앱 종료 팝업 제어 불가 관련](https://forum.webostv.developer.lge.com/t/topic/28443)
**Author:** [@techtree](https://forum.webostv.developer.lge.com/u/techtree)\ **Replies:** 1\ **Last updated:** [October 22, 2026, 7:08am UTC](https://forum.webostv.developer.lge.com/t/topic/28443 "2026-10-22T07:08:58Z")
안녕하세요. 현재 앱 심사 과정에서 뒤로가기 버튼으로 호출되는 앱 종료 팝업이 정상 동작하지 않는 문제로 심사가 거절되고 있습니다. 플랫폼 차원의 확인이 필요하여 문의드립니다. \[구현 방식\] 뒤로가기 시 webOS.platformBack()을 호출하여 OS 기본 종료 팝업을 표시하고 있습니다. \[현상\] 스탠바이미 1 (webOS 24): 문제 없음. 동일한 코드로 심사 통과 및 배… --- ## [Unable to Install Developer Mode App on LG UP7500PVG (webOS 6.4.0-22)](https://forum.webostv.developer.lge.com/t/unable-to-install-developer-mode-app-on-lg-up7500pvg-webos-6-4-0-22/19563)
**Author:** [@ko0obra2](https://forum.webostv.developer.lge.com/u/ko0obra2)\ **Replies:** 2\ **Last updated:** [September 28, 2026, 6:30am UTC](https://forum.webostv.developer.lge.com/t/unable-to-install-developer-mode-app-on-lg-up7500pvg-webos-6-4-0-22/19563 "2026-09-28T06:30:40Z")
Hello, I’m experiencing an issue while trying to install the Developer Mode app on my LG Smart TV (model: UP7500PVG, webOS version: 6.4.0-22). Here’s what happens: I locate the Developer Mode app in the LG Content St… --- ## [Developer Mode enabled and key server working, but nothing listens on 9922 — webOS 25 (10.1.7-4703, non-LG licensee build)](https://forum.webostv.developer.lge.com/t/developer-mode-enabled-and-key-server-working-but-nothing-listens-on-9922-webos-25-10-1-7-4703-non-lg-licensee-build/28425)
**Author:** [@user3272](https://forum.webostv.developer.lge.com/u/user3272)\ **Replies:** 0\ **Last updated:** [September 28, 2026, 6:23am UTC](https://forum.webostv.developer.lge.com/t/developer-mode-enabled-and-key-server-working-but-nothing-listens-on-9922-webos-25-10-1-7-4703-non-lg-licensee-build/28425 "2026-09-28T06:23:26Z")
Summary Developer Mode is enabled and reports an active 999h session. The key server on 9991 works and I can retrieve a valid RSA key with the correct passphrase. But port 9922 is closed — the TV answers TCP RST — so eve… --- ## [Unable to download the Siumulator](https://forum.webostv.developer.lge.com/t/unable-to-download-the-siumulator/28309)
**Author:** [@user2942](https://forum.webostv.developer.lge.com/u/user2942)\ **Replies:** 1\ **Last updated:** [July 24, 2026, 7:28am UTC](https://forum.webostv.developer.lge.com/t/unable-to-download-the-siumulator/28309 "2026-07-24T07:28:04Z")
I am unable to downlaod the simulator from the website… Application error: a client-side exception has occurred while loading webostv.developer.lge.com (see the browser console for more information). I have tried multi… --- ## [Error when trying to install webOS simulator](https://forum.webostv.developer.lge.com/t/error-when-trying-to-install-webos-simulator/28294)
**Author:** [@user2995](https://forum.webostv.developer.lge.com/u/user2995)\ **Replies:** 2\ **Last updated:** [July 24, 2026, 1:46am UTC](https://forum.webostv.developer.lge.com/t/error-when-trying-to-install-webos-simulator/28294 "2026-07-24T01:46:02Z")
Hi, I’m, having issues with downloading the webos26 simulator for mac. Every time I click to install it, I see the below: Application error: a client-side exception has occurred while loading webostv.developer.lge.com … --- ## [Beanviser & Resource Monitor](https://forum.webostv.developer.lge.com/t/beanviser-resource-monitor/28293)
**Author:** [@syked69](https://forum.webostv.developer.lge.com/u/syked69)\ **Replies:** 1\ **Last updated:** [July 24, 2026, 1:44am UTC](https://forum.webostv.developer.lge.com/t/beanviser-resource-monitor/28293 "2026-07-24T01:44:59Z")
I’m developing an app for webos and wanted to use beanviser or Resource Monitor but all the download links I’ve come across are all dead. Are these still in use and if so where can I download them from? Besides those to… --- ## [Flutter webOS SDK – Early Access Request (Retail Logic – Digital Signage Platform)](https://forum.webostv.developer.lge.com/t/flutter-webos-sdk-early-access-request-retail-logic-digital-signage-platform/28200)
**Author:** [@RetailLogic](https://forum.webostv.developer.lge.com/u/RetailLogic)\ **Replies:** 1\ **Last updated:** [May 20, 2026, 5:40am UTC](https://forum.webostv.developer.lge.com/t/flutter-webos-sdk-early-access-request-retail-logic-digital-signage-platform/28200 "2026-05-20T05:40:50Z")
Hello LG webOS team, We at Retail Logic would like to formally request early access to the Flutter webOS SDK beta. We are planning to port the Retail Logic player to run natively on LG webOS TVs using Flutter. About Re… --- ## [webOS Simulator Not Connecting to Internet – API Calls Failing](https://forum.webostv.developer.lge.com/t/webos-simulator-not-connecting-to-internet-api-calls-failing/28177)
**Author:** [@n-devloper](https://forum.webostv.developer.lge.com/u/n-devloper)\ **Replies:** 1\ **Last updated:** [April 23, 2026, 5:36am UTC](https://forum.webostv.developer.lge.com/t/webos-simulator-not-connecting-to-internet-api-calls-failing/28177 "2026-04-23T05:36:16Z")
hello team, I’m currently working with the webOS Simulator, but I’m facing an issue with network connectivity. My system has a stable internet connection, and everything works fine outside the simulator. However, … --- ## [Ares -v not recognized](https://forum.webostv.developer.lge.com/t/ares-v-not-recognized/28108)
**Author:** [@Shoto146](https://forum.webostv.developer.lge.com/u/Shoto146)\ **Replies:** 1\ **Last updated:** [March 3, 2026, 1:12am UTC](https://forum.webostv.developer.lge.com/t/ares-v-not-recognized/28108 "2026-03-03T01:12:50Z")
Hello all, I’m using Windows 11. I followed every step from this link https://webostv.developer.lge.com/develop/tools/cli-installation#step1. However, ares -v is not recognized. When running this command : npm instal… --- ## [isDate is not a function ares-install ERR! uncaughtException Error: Callback was already called.](https://forum.webostv.developer.lge.com/t/isdate-is-not-a-function-ares-install-err-uncaughtexception-error-callback-was-already-called/28101)
**Author:** [@NewGuy](https://forum.webostv.developer.lge.com/u/NewGuy)\ **Replies:** 1\ **Last updated:** [February 26, 2026, 12:10am UTC](https://forum.webostv.developer.lge.com/t/isdate-is-not-a-function-ares-install-err-uncaughtexception-error-callback-was-already-called/28101 "2026-02-26T00:10:09Z")
Hi, I am new to TV development. I use Vite with React.js (TypeScript) for bundling, then run the command ares-package --no-minify -o dist LG-WebOS to package it. When I try installing the app after connecting to an LG TV… --- ## [TV Emulator in m1 silicon](https://forum.webostv.developer.lge.com/t/tv-emulator-in-m1-silicon/2373)
**Author:** [@user1842](https://forum.webostv.developer.lge.com/u/user1842)\ **Replies:** 3\ **Last updated:** [February 2, 2026, 4:27am UTC](https://forum.webostv.developer.lge.com/t/tv-emulator-in-m1-silicon/2373 "2026-02-02T04:27:41Z")
Hello, We are currently developing a webOS TV application, and we have encountered an error while running VirtualBox according to the provided documents. after some searching, we found that VirtualBox does not support … --- ## [webOS Studio – Failed to install IPK on Emulator (ECONNREFUSED 127.0.0.1:6622)](https://forum.webostv.developer.lge.com/t/webos-studio-failed-to-install-ipk-on-emulator-econnrefused-127-0-0-1-6622/28067)
**Author:** [@irfanweb](https://forum.webostv.developer.lge.com/u/irfanweb)\ **Replies:** 3\ **Last updated:** [January 26, 2026, 8:01am UTC](https://forum.webostv.developer.lge.com/t/webos-studio-failed-to-install-ipk-on-emulator-econnrefused-127-0-0-1-6622/28067 "2026-01-26T08:01:18Z")
Hello everyone, I am facing an issue while trying to run/install my webOS TV app on the emulator using webOS Studio. When I try to install the IPK, I get the following error: ERROR: Failed to install .ipk on emulato… --- ## [emulator 4 and 5 inspect in new crome](https://forum.webostv.developer.lge.com/t/emulator-4-and-5-inspect-in-new-crome/28065)
**Author:** [@user2139](https://forum.webostv.developer.lge.com/u/user2139)\ **Replies:** 1\ **Last updated:** [January 13, 2026, 12:04am UTC](https://forum.webostv.developer.lge.com/t/emulator-4-and-5-inspect-in-new-crome/28065 "2026-01-13T00:04:10Z")
when i test my app in webos 4 and 5 that inspect give error show below Uncaught TypeError: document.registerElement is not a function at UI.registerCustomElement (shell.js:3108:375) at shell.js:3120:144 at shell.js:3122… --- ## [Developer mode "Request Login Error"](https://forum.webostv.developer.lge.com/t/developer-mode-request-login-error/28037)
**Author:** [@ashwinlg](https://forum.webostv.developer.lge.com/u/ashwinlg)\ **Replies:** 4\ **Last updated:** [January 7, 2026, 7:13am UTC](https://forum.webostv.developer.lge.com/t/developer-mode-request-login-error/28037 "2026-01-07T07:13:17Z")
Hello , Developer I created webOS Developer account and installed Dev Tool app from LG store on TV and when I try to log in App I get the following error. “request login error” Help me to fix this error ID :- sellerbc… --- ## [Angular ES5 compatibility for LG webOS – minimum supported webOS version?](https://forum.webostv.developer.lge.com/t/angular-es5-compatibility-for-lg-webos-minimum-supported-webos-version/28056)
**Author:** [@user2139](https://forum.webostv.developer.lge.com/u/user2139)\ **Replies:** 1\ **Last updated:** [January 4, 2026, 11:02pm UTC](https://forum.webostv.developer.lge.com/t/angular-es5-compatibility-for-lg-webos-minimum-supported-webos-version/28056 "2026-01-04T23:02:12Z")
I am developing an Angular application for LG webOS TVs. The application is written using modern JavaScript (ES6+). I tried converting the project to ES5 so that it can run on older webOS versions, but this approach doe… --- ## [Time to switch your toolchains to 64-bit?](https://forum.webostv.developer.lge.com/t/time-to-switch-your-toolchains-to-64-bit/27101)
**Author:** [@LuckyKnight2](https://forum.webostv.developer.lge.com/u/LuckyKnight2)\ **Replies:** 3\ **Last updated:** [December 29, 2025, 2:41am UTC](https://forum.webostv.developer.lge.com/t/time-to-switch-your-toolchains-to-64-bit/27101 "2025-12-29T02:41:29Z")
For a number of years now LG have been making use of 64-bit processors in their LG TV SOCs, at least from my experience of looking into this on the CX, C1, C2 and C3 TVs. e.g. on my C3: uname -a Linux LGwebOSTV 5.4.26… --- ## [What's the way to extend dev time with webOS CLI?](https://forum.webostv.developer.lge.com/t/whats-the-way-to-extend-dev-time-with-webos-cli/28033)
**Author:** [@ampauto](https://forum.webostv.developer.lge.com/u/ampauto)\ **Replies:** 1\ **Last updated:** [December 22, 2025, 8:30am UTC](https://forum.webostv.developer.lge.com/t/whats-the-way-to-extend-dev-time-with-webos-cli/28033 "2025-12-22T08:30:05Z")
I’ve been using WebOS TV CLI that provides ares-extend-dev command to extend the session time of the developer mode, but there’s no such command in the new WebOS CLI, how can I do that? --- ## [Configure SDK Location?](https://forum.webostv.developer.lge.com/t/configure-sdk-location/26740)
**Author:** [@devbobcz](https://forum.webostv.developer.lge.com/u/devbobcz)\ **Replies:** 4\ **Last updated:** [December 2, 2025, 1:41am UTC](https://forum.webostv.developer.lge.com/t/configure-sdk-location/26740 "2025-12-02T01:41:08Z")
Hi, im using VS code on M3 chip mac book pro, now i try install WebOS extension to VS code, after global instalation of npm install -g @enact/cli @webos-tools/cli patch-package VS code says: “Configure SDK Location Pl… --- ## [Need Web OS TV SDK installer file](https://forum.webostv.developer.lge.com/t/need-web-os-tv-sdk-installer-file/6059)
**Author:** [@vinolg](https://forum.webostv.developer.lge.com/u/vinolg)\ **Replies:** 4\ **Last updated:** [December 2, 2025, 1:40am UTC](https://forum.webostv.developer.lge.com/t/need-web-os-tv-sdk-installer-file/6059 "2025-12-02T01:40:12Z")
I am trying to find webOS TV SDK Installer zip file for Macbook pro. But I didn’t find it. Really appreciate if some one helps me to provide the link. Thanks --- ## [Relative mouse support](https://forum.webostv.developer.lge.com/t/relative-mouse-support/27971)
**Author:** [@LuckyKnight](https://forum.webostv.developer.lge.com/u/LuckyKnight)\ **Replies:** 1\ **Last updated:** [December 1, 2025, 1:03am UTC](https://forum.webostv.developer.lge.com/t/relative-mouse-support/27971 "2025-12-01T01:03:35Z")
Please could you add relative mouse support. At the moment I believe only absolute mouse support is available and this causes issues trying to develop first person shooter type games. For wayland there is zwp\_pointer\_co… --- ## [Request for the Flutter WebOS SDK](https://forum.webostv.developer.lge.com/t/request-for-the-flutter-webos-sdk/27941)
**Author:** [@ELOUFIR](https://forum.webostv.developer.lge.com/u/ELOUFIR)\ **Replies:** 1\ **Last updated:** [October 13, 2025, 12:36am UTC](https://forum.webostv.developer.lge.com/t/request-for-the-flutter-webos-sdk/27941 "2025-10-13T00:36:32Z")
Hello LG team and community, I’d like to ask if there are any plans to make the Flutter SDK for webOS publicly available. A while ago, there was a private version used internally and during hackathons, but since then, … --- ## [Touch Screen Kiosk](https://forum.webostv.developer.lge.com/t/touch-screen-kiosk/27903)
**Author:** [@Foster25](https://forum.webostv.developer.lge.com/u/Foster25)\ **Replies:** 1\ **Last updated:** [September 4, 2025, 1:28am UTC](https://forum.webostv.developer.lge.com/t/touch-screen-kiosk/27903 "2025-09-04T01:28:21Z")
Is it possible to plug in a USB and view HTML files for touchscreen without having internet? I cannot get a file manager to load. --- ## [Can login on site but not on tv](https://forum.webostv.developer.lge.com/t/can-login-on-site-but-not-on-tv/27897)
**Author:** [@cavalcantel](https://forum.webostv.developer.lge.com/u/cavalcantel)\ **Replies:** 1\ **Last updated:** [September 3, 2025, 2:46am UTC](https://forum.webostv.developer.lge.com/t/can-login-on-site-but-not-on-tv/27897 "2025-09-03T02:46:48Z")
my email (id) is lucascpcavalcante@gmail.com i have reset my password, and can login on this site. but i cant login on the tv app --- ## [WebOS Simulator 2025 Issue - can't open context menu in DevTool](https://forum.webostv.developer.lge.com/t/webos-simulator-2025-issue-cant-open-context-menu-in-devtool/27672)
**Author:** [@Arcanis](https://forum.webostv.developer.lge.com/u/Arcanis)\ **Replies:** 4\ **Last updated:** [September 2, 2025, 2:19am UTC](https://forum.webostv.developer.lge.com/t/webos-simulator-2025-issue-cant-open-context-menu-in-devtool/27672 "2025-09-02T02:19:33Z")
Hello! I am trying to use the latest available simulator (WebOS 25 1.4.2) for the new ‘Request Override’ feature in Chrome DevTools. However, i cannot open context menu by right-clicking anywhere within the DevTools pan… --- ## [Can not run an emulator](https://forum.webostv.developer.lge.com/t/can-not-run-an-emulator/1076)
**Author:** [@asumranphan](https://forum.webostv.developer.lge.com/u/asumranphan)\ **Replies:** 20\ **Last updated:** [July 31, 2025, 7:58am UTC](https://forum.webostv.developer.lge.com/t/can-not-run-an-emulator/1076 "2025-07-31T07:58:24Z")
Once I execute the ./run\_webos\_emulator.sh script. It doesn’t seem to work properly and shows an error popup. macOS Catalina 10.15.7 Virtualbox 6.1.40 r154048 (Qt5.6.3) --- ## [Is there or is there not a HTTP REST API for webOS?](https://forum.webostv.developer.lge.com/t/is-there-or-is-there-not-a-http-rest-api-for-webos/27325)
**Author:** [@user2277](https://forum.webostv.developer.lge.com/u/user2277)\ **Replies:** 1\ **Last updated:** [July 24, 2025, 12:00am UTC](https://forum.webostv.developer.lge.com/t/is-there-or-is-there-not-a-http-rest-api-for-webos/27325 "2025-07-24T00:00:28Z")
Is there or is there not a HTTP REST API for webOS? Just trying to establish this fact. See lots of references to commands via Google that appear to use a HTTP REST API but are no longer valid? See lots of examples of… --- ## [WebOS Studio npm libs always fails - macOS 12.7.5](https://forum.webostv.developer.lge.com/t/webos-studio-npm-libs-always-fails-macos-12-7-5/12364)
**Author:** [@user311](https://forum.webostv.developer.lge.com/u/user311)\ **Replies:** 3\ **Last updated:** [July 21, 2025, 5:55am UTC](https://forum.webostv.developer.lge.com/t/webos-studio-npm-libs-always-fails-macos-12-7-5/12364 "2025-07-21T05:55:18Z")
Hello! My VSCode WebOS Extension isn"t working properly. Here is the error i get: ERROR! Failed to install package. Please install manually these packages @enact/cli,@webos-tools/cli,patch-package. Details As follows: G… --- ## [webOS 6.0 simulator web inspector is not working](https://forum.webostv.developer.lge.com/t/webos-6-0-simulator-web-inspector-is-not-working/27168)
**Author:** [@Mohsin](https://forum.webostv.developer.lge.com/u/Mohsin)\ **Replies:** 1\ **Last updated:** [July 17, 2025, 4:53am UTC](https://forum.webostv.developer.lge.com/t/webos-6-0-simulator-web-inspector-is-not-working/27168 "2025-07-17T04:53:07Z")
Hi, I downloaded the webOS TV 6.0 simulator from the official site https://webostv.developer.lge.com/develop/tools/simulator-installation and tried executing my application. The application run successfully but I could … [Next page](https://forum.webostv.developer.lge.com/c/sdk/34.md?page=1)