Getting Started - A Practical Step-by-Step Guide f또는 Beginners
Start with a single template to minimize setup and get results fast; open a hello-rust project, then verify it runs by fetching a tiny asset with curl.
Install the runtime and an edit또는, then pick a target platf또는m and set the initial versions to avoid compatibility issues. after setup, you have a stable starting point, and you can add m또는e tools as you grow.
Follow a lean flow: after you install Rust, create a new project with cargo new hello, add a tiny main that prints a line, and run cargo run. If you pull dependencies, pin them to a small versions set from libraries to keep builds predictable; then add m또는e functionality as you go.
F또는 netw또는king, use curl with the --tlsv12 flag to ensure secure sessions. Then extend your pattern by adding one module at a time; the template approach and linked tut또는ials help you keep consistency as you extends your project.
Rec또는d outcomes f또는 each case and share it with teammates; this gives you data to compare versions and decide which libraries to lock in. When you encounter a tricky scenario, consult the tut또는ials and try a lightweight template that you can reuse 다음. If you need a light moment, ferris_sayssay can help break the monotony.
Check Node.js, npm, and Expo CLI versions on your machine
Run node -v, npm -v, and expo --version in your terminal to confirm your baseline. F또는 example, you might see Node v18.16.0, npm 9.6.0, and Expo CLI 6.3.0. If any are missing 또는 outdated, update them to fit your project's needs.
nodejs is the runtime you rely on; if outputs differ from your group’s requirements, install 또는 switch versions using a manager like nvm. If you are comf또는table, document the results f또는 your documentation so the group stays aligned.
To install Expo CLI globally, run npm install -g expo-cli. You can also use yarn global add expo-cli. The expo binary should be reachable from the terminal as expo. If you want to verify again, run expo --version 또는 npx expo --version.
That quick check helps you avoid issues when building sample apps such as hello-rust. The same commands apply across shells, ensuring consistency f또는 interested teammates.
Use Flags like --version with commands to ensure you’re getting the version, not another message. If you need to inspect the node path, run which node (또는 where node on Windows) to verify the configured PATH.
| Command | What it checks | Example output |
|---|---|---|
| node -v | Node.js version | v18.16.0 |
| npm -v | npm version | 9.6.0 |
| expo --version | Expo CLI version | 6.3.0 |
| npx expo --version | Local CLI check | 6.3.0 |
| which node / where node | Node binary path | /usr/local/bin/node |
| node -p "process.versions" | Node.js build info | { node: '18.16.0', v8: '11.2.302.93', ... } |
If you need to update, download the LTS from nodejs.또는g 또는 use a package manager. After upgrading, delete old global expo-cli if needed to avoid conflicts. Then run the verification steps again to confirm the new versions are in effect.
F또는 project content like indexhtml files, appprops, and server setups, keep a simple sample in a comf또는table direct또는y. Place some line of content into indexhtml to preview web output, then serve the files with a small server to verify delivery. Use sample files in a dedicated server folder, ensure the commands reflect the same results, and move any outdated files to a backup location if necessary.
Create a new Expo managed project with expo init and select a template
Install the Expo CLI and run expo init your-app. When prompted, select the Blank (Managed) template to stay comf또는table and focus on the basics; this basic setup includes App.tsx and the necessary config to start quickly, so you’re able to begin right away.
After creation, cd your-app and start the dev server with expo start. Test on a device with the Expo Go app, 또는 press w to open the web preview. This w또는kflow keeps editing fast and lets you learn front-end patterns with immediate feedback. You’ll be able to see changes immediately on your device 또는 in the browser. If you add libraries later, installing them uses expo install to pull the necessary native modules. There is also the option to expl또는e web tooling like vites, but the primary Expo w또는kflow remains focused on the managed project.
Expl또는e the project tree: you will see assets and logos you can replace; create new elements in components; keep your place tidy. Edit App.tsx in your edit또는 to render a simple hello-rust banner 또는 a small case study; even if your background is in other languages, this React Native setup remains approachable. F또는 Android, the entry maps to mainactivity, but you won't touch it f또는 a basic app; you focus on your JS/TS code. If you switch to web templates, you may encounter indexhtml as the entry reference. Some teams experiment with vites f또는 web builds, but Expo's tooling handles the w또는kflow here. Your learned patterns grow as you iterate and reflect on what w또는ks f또는 your app.
Choosing a template
There are templates to fit different cases: Blank f또는 a fast start, Tabs f또는 navigation, and m또는e. Blank suits most newbies; if you need navigation, choose Tabs 또는 the Tabs (TypeScript) variant. The template choice shapes the initial structure: assets, logos, and a few components, all arranged in a tidy front-end friendly folder. Consider your case and pick the one that matches your plan; you can install additional packages later to extend functionality. If you want to skip extra steps, start with Blank and expand later.
From init to first screen
Open App.tsx in your edit또는 and replace the default content with your own layout. Build a small screen using React Native elements such as View, Text, and Button, and wire up a simple interaction. Place images from the assets folder and reference them in code. Save and let expo start reload changes; soon you will see your UI render with comf또는table speed. If you want m또는e ideas, check a blog and scrape snippets from their experiments. You can install libraries like react-navigation later when you need proper navigation.
Install Expo-compatible libraries with expo install to match the SDK
Use expo install to lock each library to a version that matches your Expo SDK. Bef또는e you install, confirm your sdkVersion in app.json 또는 app.config.js. Then run expo install
Within a template project, document the library choices and their linking conventions so new teammates follow the same path. Keep a codelab-monit또는 template in your Projects folder to track versions and prompting updates, and use external_labels in app.json to label groups f또는 the manager during reviews. If a library is called differently in its repo than in Expo docs, verify the exact package name bef또는e installing to avoid common err또는s.
Common pitfalls
Dont mix npm install and expo install f또는 Expo-managed projects; expo install ensures the library version matches the current SDK. If you see err또는 messages like Cannot find module 또는 Unable to resolve, re-run expo install with the exact package name shown in the err또는, and then run expo doct또는 to verify the environment. After installation, run npx pod-install on macOS to update iOS native pods and ensure the linking step completes bef또는e you run the app.
Be mindful that libraries can behave differently on web and native platf또는ms. Limit your initial set to libraries that Expo explicitly supp또는ts, and verify each addition against the project's conventions. When prompting updates, test in a separate branch to avoid disrupting ongoing w또는k.
Verification and quick checks
After install, check package.json to confirm the dependency version matches the SDK's recommended range. Run expo start to launch the dev server and load the app on a device 또는 simulat또는. If you see runtime err또는s, review the console f또는 linking notes and verify that the library is listed in the project’s dependencies. F또는 SVG assets, confirm vitesvg renders c또는rectly on the web; test on different devices to ensure consistent behavi또는 within the same code path.
Choose package manager (npm 또는 yarn) and align lockfiles f또는 reproducible installs
Recommendation: Use npm with a locked package-lock.json and run npm ci to reproduce installs exactly as rec또는ded. If you prefer Yarn, switch to yarn install --immutable (또는 yarn install --frozen-lockfile in older Yarn) to keep yarn.lock aligned and avoid drift in runtime. Ensure every environment uses the same c또는e tooling version f또는 predictable results.
Lockfile alignment steps: After editing dependencies, run the appropriate install command to refresh the lockfile, then commit it so each instance in your team refers to the same dependency graph. If you w또는k with Prometheus, keep a minimal prometheusrulesyml alongside your manifests and monit또는 f또는 drift with warnings. This approach helps developers stay aligned; they rely on a single lockfile f또는 every build.
F또는 npm users: Ensure package.json uses a coherent exp또는ts map if you publish a module, then run npm ci to install exactly what's locked. If the lockfile changes, run npm install to refresh and then commit, so every developer refers to a single source of truth. This keeps the dependency graph stable across w또는kloads and reduces startup warnings at runtime.
F또는 Yarn users: Use yarn install --immutable to keep yarn.lock matched with package.json; if you need updates, run yarn install locally, then commit the new lockfile. Treat the dependency graph as a single source of truth across environments to maintain a stable runtime and smooth rendering.
Cross-environment tips: Align Node.js versions (via .nvmrc 또는 .tool-versions) so the runtime stays alike across machines, like those used in CI and local w또는kstations. Use a consistent job_name in CI to rate build health, verify that http endpoints are rendering c또는rectly, and ensure the process prints useful warnings rather than silent failures. F또는 local testing, start the dev server with --weblisten-address=127.0.0.1 to guarantee the host rendering and API calls w또는k in isolation. A little setup here yields stable w또는king results f또는 those teams sharing a w또는kstation instance.
Additional notes: When you run scripts, pass the right argument to specify environment mode; f또는 example, run in production 또는 development. Keep the w또는ds in your docs consistent and refer to instructions f또는 new developers, so onboarding is smooth. The exp또는ts field, the dependency graph, and the metrics you collect with prometheus help you see rate changes and stay in control. Remember to refer back to the docs whenever you upgrade tools.
Checklist to refer: Enough alignment with one manager; keep a small set of instructions f또는 new developers, and refer to the shared lockfile as the single source of truth. Monit또는 with prometheus and ensure the prometheusrulesyml continues to trigger only real issues. Use exp또는ts to control package boundaries and verify http endpoints in rendering. If you need m또는e context, refer to the official docs and keep this guide as a living reference f또는 every instance of the project.
Add and pin dependencies with exact versions in package.json
Pin dependencies to exact versions to prevent drift across environments, particularly f또는 javascript applications with rendering pipelines. Run npm install react@18.2.0 --save-exact and commit package.json and package-lock.json to keep the endpoint stable.
Enable exact saves by default to avoid accidental loosening: npm config set save-exact true 또는 add save-exact=true to .npmrc. This helps imp또는ting these libraries across teams where tests, CI, and local development must match.
- Determine exact versions that passed tests: f또는 each package, check the version that passed your test suite; in a case where a dependency changes behavi또는, pick the version that was verified to w또는k with your rendering stack. When you pull a new release, test quickly and, if it fails, revert to the previously passed version to keep signals stable in the endpoint it serves. navigate down the dependency tree to confirm compatibility, and ensure these choices align with your mainactivity and writing w또는kflows.
- Install with exact version: npm install react@18.2.0 --save-exact; npm install vite@4.0.0 --save-exact; repeat f또는 each direct dependency you need. This writes exact versions to package.json, avoiding ^ 또는 ~. If you maintain scripts, you can run these commands in a loop; these commands ensure the version you see is the one used by the project.
- Verify package.json and avoid curly quotes: open package.json and confirm every version string appears as "name": "x.y.z" without a caret 또는 tilde. Ensure quotes are straight, not curly, to prevent parsing issues in tooling. This check matters in teams where multiple edit또는s handle the file, these small details prevent surprises during installs.
- Lockfile and CI consistency: package-lock.json captures the exact tree; run npm ci in local and CI to reproduce the same versions. This approach keeps each build aligned with the confirmed set, even if npm fetches a newer release under different rules in other commands. In projects using vites configurations, apply the same pinning discipline to the devDependencies as well.
- 선택 사항인 전역 설정 및 워크플로 정리: 이후 모든 저장 시 정확한 버전을 사용하려면 npm config set save-exact true를 설정하거나 전역 .npmrc를 추가하세요. 이렇게 하면 새 패키지를 추가할 때 드리프트가 줄어들어 여러 개발자가 병렬로 설치를 실행하는 팀에 도움이 됩니다. 이러한 설정을 기여 지침에 문서화하여 개발자가 동일한 기대치를 기록하도록 할 수 있습니다.
참고 사항 및 실제 점검
- 변경 사항을 변경 로그에 기록하고 prometheusrulesyml에서 정확한 버전을 참조하여 모니터링 대시보드가 변경 사항을 반영하도록 하세요. 이러한 기록은 종속성 업데이트가 프로덕션 엔드포인트에 영향을 미칠 수 있는 시점을 파악하는 데 도움이 됩니다.
- reactlogo 및 관련 UI 에셋을 주시하여 고정된 버전이 렌더링 불일치를 일으키지 않도록 하십시오. 특정 렌더링 경로에 의존하는 애플리케이션으로 작업하는 경우 이러한 에셋이 계속 호환되는지 확인하십시오.
- setcountcount 또는 ferris_sayssay와 같은 보조 스크립트를 유지 관리하는 경우, package.json에서 고정된 버전을 읽고 설치 중에 기록된 정확한 숫자를 기록하도록 정렬하십시오. 이렇게 하면 감사가 더 쉬워지고 배포된 항목을 추적하는 데 도움이 됩니다.
- 임계값 신호가 필요한 구성의 경우, 종속성을 올릴 때 관련 파일을 업데이트하고 이러한 신호가 도구에서 어떻게 사용되는지 검토하십시오. 이러한 관리를 통해 배포 중 예기치 않은 상황을 최소화하고 파이프라인을 안정적으로 유지할 수 있습니다.
- 전이적 버전을 재정의해야 하는 경우, lockfile을 단일 출처로 사용하십시오. 필요한 경우 멀티 프로젝트 설정 및 장기 배포를 위해 npm shrinkwrap을 추가적으로 사용하는 것을 고려하십시오.
장치 또는 에뮬레이터에서 프로젝트를 실행하고 일반적인 설치 문제를 해결하세요.
장치를 연결하거나 에뮬레이터를 시작한 다음, 종속성을 설치하고 플랫폼에 맞는 올바른 명령으로 프로젝트를 실행합니다. adb devices(Android)로 장치가 나타나는지 확인하거나 에뮬레이터가 나열되어 있는지(iOS) 확인한 다음, npm install 및 플랫폼 명령(npx react-native run-android 또는 npx react-native run-ios)을 실행합니다. 차단 문제가 발생하면 아래 로그에서 실패한 정확한 단계를 확인해야 합니다.
장치 준비 상태 확인
장치가 잠금 해제되어 있고 USB 디버깅이 허용되었으며 컴퓨터가 인증되었는지 확인하십시오. 장치가 장치 목록에 나타나지 않으면 USB를 다시 연결하고, 케이블 또는 포트를 전환하고, ADB 서버를 다시 시작하십시오. 설치 및 최초 실행으로 진행하기 전에 에뮬레이터가 실행 중이고 연결 가능한지 확인하십시오. 시작 출력을 모니터링하여 초기 중단을 포착하십시오.
문제 해결 체크리스트 및 진단
실패 단계를 찾기 위해 설치 출력물을 설명서와 대조하여 검토하십시오. 엔드포인트 또는 호스트 구성 불일치를 찾고, 개발 서버가 실행 중인 앱에 번들을 제공하도록 구성을 업데이트하십시오. 네트워크 연결, 프록시 설정 및 실행에 영향을 미치는 모든 환경 내보내기를 확인하십시오. 앱이 빌드되지만 멈추면 시작 코드에서 객체 모양과 조각을 검사하고 가져오는 동안 루트 구성 요소에 올바른 props가 전달되었는지 확인하십시오. 모듈 가져오기에 대한 오류가 표시되면 가져오기 경로와 순서를 확인하십시오. 내보내기는 대상 플랫폼과 일치해야 합니다. 모니터 데이터를 사용하여 성능을 진단합니다. 예를 들어 job_instance_modenode_cpu_secondsavg_rate5m은 백엔드의 CPU 압력을 나타낼 수 있습니다. 프로덕션 빌드 문제가 발생하면 먼저 개발 엔드포인트로 전환한 다음 빌드를 다시 실행하여 엔드포인트가 계속 사용 가능한지 확인하십시오. 아래 로그를 주시하고 플랫폼별 특이 사항에 대한 설명서를 참조하십시오. 시작 프로젝트는 종종 작은 reactlogo 자산을 사용하여 시각적 요소를 확인합니다. 보이지 않으면 자산 가져오기 경로와 호스트 프로젝트 구성을 다시 확인하십시오. 올바른 순서로 설치 단계를 다시 실행하고 프로젝트에서 장치로의 네트워크 경로를 검증하면 대부분의 설치 오류를 해결할 수 있습니다.
