BUG! exception in phase ‘semantic analysis’ in source unit ‘_BuildScript_’ Unsupported class file major version 61
Issue: In Arch Linux, when try to execute npm run android, it throws the following error. Solution: Do not use Java 17 Open JDK as…
Author: Chris Lee
Change Java OpenJDK version in Arch Linux
Issue: When execute npm run android for React Native, the build error occurred as below: Solution: It’s because currently Java version is lower than 11.…
MongoDB exception in initAndListen: old lock file, terminating
Reference: https://github.com/docker-library/mongo/issues/62#issuecomment-568308941 Error Message: Fix for docker-compose.yml:
바이낸스 자동 매매 트레이딩 봇
추적 매수/매도 기법(Trailing buy/sell strategy)을 이용한 자동화된 바이낸스 자동매매 프로그램 소스 코드: https://github.com/chrisleekr/binance-trading-bot 최신 업데이트 정보는 README.md에 서 확인 가능합니다. 이 페이지는 한국어로 프로그램에 대한 설명만 적혀있습니다.…
Convert gnome-boxes virtual machine image to Oracle Virtual Box image
First convert gnome-boxes image to Virtual Box image Open Virtual Box Click Add button and follow below steps
실시간 환율 받아오기 (Get real-time currency information)
Code snippet to retrieve real-time currency from exchangeratesapi.io
Binance Auto Trading Bot – Buy low/Sell high with stop loss limit/Trade multiple coins
Automated Binance trading bot with trailing buy/sell strategy Github: https://github.com/chrisleekr/binance-trading-bot Warnings I cannot guarantee whether you can make money or not. So use it at…
Gitlab troubleshooting
Environment: Gitlab is running under docker Error with ActiveModel::UnknownAttributeError (unknown attribute ‘author_name’ for SecurityEvent.):
Image Optimisation Service
Github: https://github.com/chrisleekr/image-optimisation This is a practice project. The project contains Node.js API that optimise images – jpg, png, svg, and gif. Node.js, Express, Webpack, Imagemin…
애자일 스프린트 회고 도구(Agile Sprint Retrospective Tool)
스프린트(Sprint)를 운영하면 2주에 한번 아니면 한달에 한번씩 정기적인 “회고(Retrospective)”를 해야한다. 모든 팀원이 솔직하게 익명으로 자신의 의견을 개진해야하고, 그 의견들을 다같이 토론하여 프로젝트 운영에 반영해야 팀의…
Node.js + MongoDB RESTful API Boilerplate
Github: https://github.com/chrisleekr/nodejs-mongodb-api-boilerplate This is a sample project that I followed the tutorial Build Node.js RESTful APIs in 10 Minutes written by Olatunde Garuba. How to start $…
Mount iPhone/iPad in Arch Linux
Install libimobiledevice and ifuse$ yays libimobiledevice ifuse (* important) Pair with iPad – make sure iPad is connected via USB cable$ idevicepair pair Run usbmuxd…
Node.js (REST API) + Vue.js/Nuxt.js (Frontend/Backend) + MySQL Boilerplate
Github: https://github.com/chrisleekr/nodejs-vuejs-mysql-boilerplate This is a boilerplate project. The project contains Node.js REST API and frontend/backend developed by Vue.js with BootstrapVue. API Node.js, Express, Webpack, Express…
When Arch Linux installation, cannot find nvme0n1 in DELL XPS 13
When you do lsblk, it does not show your SSD, then it means RAID for SATA Operation is on. Simply open Bios -> System Configuration…
Linux Docker uses excessive memory
Issue: I have a 16G memory and configured swap as 16G. When start mysql docker, mysqld uses crazy amount of memory and make the system…
VirtualBox + Windows 7 USB storage not recognised
Environments: Arch Linux Oracle VM VirtualBox 6.0.8 + Extension Pack Issue: In “Device Manager”, Universal Serial Bus Controller driver is not installing correctly. USB storage…
Share clipboard between GNOME and Boxes (Windows)
Reference: https://help.gnome.org/users/gnome-boxes/stable/clipboard.html.en https://www.spice-space.org/download.html While express installation typically takes care of making shared clipboard available to you, express installation is not available for all operating systems.…
Winetricks failed to install WMP9
References: https://www.hahwul.com/2018/08/install-kakaotalk-on-ubuntu-18.04.html https://www.playonlinux.com/en/topic-16540-MPSetup_wmp9_will_not_run.html Error message: Solution: Download MPsetup.exe from https://web.archive.org/web/20180404022333/http://download.microsoft.com/download/1/b/c/1bc0b1a3-c839-4b36-8f3c-19847ba09299/MPSetup.exe Save as /home/{username}/.cache/winetricks/wmp/MPSetup.exe Rerun winetricks
[PHP+MySQL] 간단한 카카오 i 오픈빌더 챗봇 만들기 (Kakao i Open Builder)
카카오 i 오픈빌더 (Kakao i Open Builder)를 이용한 플러스 친구 챗봇 (PHP + MySQL) 백엔드 프로젝트 이 프로젝트는 샘플 테스트용으로 카카오톡 플러스 친구 챗봇을 구현하기…
When you get 403 Forbidden error in VentraIP shared hosting
Out of nowhere, I started getting the error when I try to post any article. After in-depth investigation, I found if I add any code…
Workerbox (Service Worker)로 사이트 로딩 속도 향상 시키기
Service Worker: 웹페이지와 별개로 브라우저가 백그라운드에서 실행시키는 자바스크립트 코드. 푸쉬, 동기화, 오프라인 모드 지원 https://developers.google.com/web/fundamentals/primers/service-workers/ Workerbox: 구글에서 제공하는 자바스크립트 라이브러리로써 웹앱의 오프라인 지원을 쉽게 할…