React Native 101: Building Your First App and Troubleshooting Common Issues

Welcome to a youtube channel dedicated to programming and coding related tutorials. We talk about tech, write code, discuss about cloud and devops. That’s what we do all day, all year. We roll out a lot of series and videos on our channel.
All the learning resources such as code files, documentations, articles and community discussions are available on our website:
chaicode.com/
You can find our discord link, github link etc on the above website.
Twitter/X link: x.com/hiteshdotcom
Discord link: hitesh.ai/discord
Learn React with 10 projects: • Let's learn react from...
Learn Docker: • A practical guide on D...
Learn Kubernetes: • Complete Kubernetes Co...
How does a browser works: • How does a browser wor...
How nodejs works: • How node JS works | En...
Learn Redux-toolkit: • Learn Redux Toolkit in...
Learn NextJS: • Nextjs Full stack course
Learn Typescript: • Why to learn Typescript
Learn Javascript: • Welcome to new JavaScr...
Learn React Native: • React Native Mastery: ...
Learn Zustand: • React state management...
Learn Golang: • How to get started wit...

[@LorenzoJimenez]

Kudos for this rare video. There are many issues to face: upgrading to a higher React Native version, when Apple deprecates a version of IOS, 3rd party libraries not upgraded to a new react version or incompatible to a higher verion of ios or android

[@pademo57]

Absolutely love these videos. Finally someone who explains not only what is the best way to set this up but also what to look for or what to do when something goes wrong. Thank you and keep up the good work!

[@HiteshChoudharydotcom]

Glad it was helpful!

[@guddubhaiyathikanamirzapur4079]

Your videos are easily understandable...Even if I have to pay something for these kinds of lectures, I will happily do it.

[@rehandev7833]

After facing my first error in getting the Metro Server up and running, really excited to start writing code in React Native. Moving onto the next video :)

[@venkatchalam6385]

After long time I am waiting for your video for react native thank u

[@oseifrimpongg]

I just love the constant reassurances. I hope I am able to make it to the end of the series 😄!

[@virinchibalusani5726]

Thanks buddy💚 Great job Hashnode🤝

[@baanuaali2818]

Thank you very much, amazing course, the best i found, everything clear

[@weligamage1]

Thank you very much. This is really helpful.

[@asmakamaal1258]

Thank you so much Sir for this...😊🌼

[@Peterin]

how to bring the phones screen on the laptop? Anybody pls provide a solution for mac

[@siddharthabajpai4182]

love you sir ji....🙂🙂🙂🙂almost lost my calm starting the app. but you were right. make errors your friend. thank you sir

[@AshishYadav_63]

Waiting for next video sir......I am also learning backend dev using node js and express hope mobile development and Web development don't mix-up just because I'm learning them both at same time 🙂

[@10bhavankumarv47]

Hi sir great video 👏 BTW, when I run "adb devices" it's not listing any devices. Also could you please explain how to mirror the output on our phone more elaborately on the next episode? Thanks in advance 😉

[@SammarpanDasguptaOfficial]

Nice work sir.... Some struggle to setup but worth it... Excited for next video

[@khushsharma6470]

its been 3 days i couldn’t do it can you help me

[@techsonaniya8923]

Very good teaching skills

[@mehdi2368]

for people who are facing problems setuping env i recommend you to start with expo and then after you learn react native you can solve your previous problems

[@relks8429]

For everyone that is having problems, do not use expo go under any circunstancies. It will bring you lot of more problems.

[@sumitram4132]

It's takes 3 months to setup using CLI process but finally did it.

[@iqbalhussaincs9998]

Thank you sir ❤️

[@sohankumardash1109]

Hello Hitesh Sir, Please also make a video on how you set up your android studio. I found it hard to install it. My app is not running and its trying to download some libraries and then fails. Thanks

[@EthicalRaja]

Thankuuuuuiu 🥺🥺🥺

[@harshit2629]

❤thank you Sir

[@soumyadeepsengupta530]

sir i everyday i check for the new video for the course . i am very much excited for the whole series

[@HiteshChoudharydotcom]

Glad to hear that

[@shubham_jha]

Thanks!!

[@DYNO_619]

React Native environment setup is damn difficult but finally I've done it in 2 hrs. Most of the issues were solved by setting the env variable.

[@HiteshChoudharydotcom]

It’s definitely worth it

[@surajmaurya1515]

Can you Help me ? PLease

[@AnasSaleem-bd8vf]

very help full video

[@harshalsathe3946]

Dear Hitesh, I am a web designer and currently making websites in WordPress but I am facing so much problem in page loading speed and hacking attempts on WordPress website as its uses theme and plugins... I want to devolve a dynamic website which is fast in loading compare to WordPress easy to maintain .. and no need to update the code frequently ... What language or framework will you suggest me ..please guide me on this...

[@lordmod9325]

For windows we can use global environment variables for sdk

[@Sarvesh_Coder]

Great video sir !

[@HiteshChoudharydotcom]

Thanks!

[@abdu5822]

What about using npx create-expo-app ? the diff and when to use one ?

[@anubhavseet004]

Sir it took me a day to figure out and solve the errors, but at last i was able to build the app

[@pitamdas4882]

Finally it done. After 3 hours. Thank hitesh sir, also thanks chatGpt

[@khushsharma6470]

its been 3 days for me i coudlnt do it can you help me

[@pitamdas4882]

What type of problem

[@khushsharma6470]

@@pitamdas4882 What went wrong: Could not determine the dependencies of task ':app:compileDebugJavaWithJavac'. > Could not determine the dependencies of null. > SDK location not found. Define a valid SDK location with an ANDROID_HOME environment variable or by setting the sdk.dir path in your project's local properties file at '/Users/khushsharma/awesome01/android/local.properties'.

[@rv-web]

Hi, Could you help me the guide to setup environment on macOS? I followed the documentation but getting many errors. Also it slowdown performance of my macOS. Using RN 0.71.6 version

[@NaveenKumar-jo6cv]

I can not find my device under the "adb devices" command. I also tried using emulator but it also gives me an error stating: Could not open settings generic class cache for settings file

[@SSC__CLASSES]

a note for those who build nowadays run npm start first and then run in another terminal npm run android and if there is a error then make a fresh install of android studio and jdk (i got issue with that)

[@bhumit070]

sir how do you mirror phone on mac ?

[@mazzghul]

Hi, What's the software which you used to mirror android mobile in Mac. its really cool. Anybody else who knows too, please help me. I really like how he can click the android device with mouse

[@nike101m]

HI bro, The option Select USB Configuration not shown in Onepluse 7t mobile.

[@alimosbah]

Let's start this experiment together

[@narendermudgal]

do you have any video to run first app on iOS ?

[@adityatiwari9027]

Hello sir...while running the app I'm getting error that unable to load script and some bundle related issue.. I have tried everything which I knew but the error didn't solve.

[@shubhambahre9021]

The discord link is not working. It says "Privay error"

[@shakyaji563]

Hi i have used a company laptop. So we didn't install adb driver. Now what i do for run first program

[@krawl97ing]

What's the name of the VSCode theme that you are currenltly using? :)

[@azam2390]

"Noctis"

[@anshikgupta2993]

Hey can I get the discord channel link as I am facing issues while running the application android / ios emulator on a MAC computer.

[@kazitanim007]

FYI: run "npm" instead of "npx" and hopefully there will be no issues if all the settings are fine. - npm start - npm run android

[@sagar-tt4ub]

Great video. Fortunately for me, it ran on the first go

[@HiteshChoudharydotcom]

Lucky you 😁

[@shivtiwarii]

to those who are facing the issue with the final command that starts the preview on the device, try running "npm run start" in a separate terminal and then in another terminal run "npm run android"

[@samarththaker5051]

Thank you vey much. I could not figure out what to do.

[@LakshitAmeta]

I'm getting an error activity class does not exist I tried a lot but I'm not able to resolve it

[@yogitasingla6468]

i always get this error when opening in android studio - error Cannot start server in new window because no terminal app was specified. you just need to use npm start before run command in this case

[@ujjawalrachhoya8972]

when i cun npm run android it takes lots of time around 15-20 mint but at the end it simple running not loading the app any solution

[@ajith2796]

9:42 Thanks 👍

[@codeBUG1534]

Sir mine npx react-native run-android is taking too much time to load. it's my very first time learning react-native. How can i resolve it Sir ?

[@frankbuzzz]

Hello Sir, When I continue using my app the app runs fine but when I don't use it for more than 5 minutes it slows down for a minute and then it seems to be running normally as before. I made my app react native. While its backend code is written in codeignitor4, the data from PHP and API is being fetched at the right time for viewing from postman, what is the problem, why is my app getting slow.

[@sahilverma_dev]

I am using expo client. So will it be ok to continue or should I install React Native this way?

[@HiteshChoudharydotcom]

I will use CLI in course, rest is your choice 🙂

[@MrTarang1]

Could not determine the dependencies of task ':app:compileDebugJavaWithJavac'. > Could not determine the dependencies of null. > Cannot query the value of this provider because it has no value available. can you tell me issue when i runing android on mac this error comes @hitesh

[@samuelasiabaka365]

I use a windows laptop and an iphone, anyway to use both?

[@faisalrahman418]

I have installed and learned angular in vscode. is there any problem in installing react also in the vscode.? or should i need to install locally instead of global ?

[@anirudhcodes]

There will be no problem I believe

[@guptapandiri]

Hey, you don't need to install react or react native globally, you can use the npx command like npx create-react app or npx react-native init, which fetches the latest version. Anyway even if you install it globally, it won't be a problem.

[@me_har]

to run app is Android SDK 12 is mandatory or Android SDK 13 will also work ? As Currently I am facing error Could not determine the dependencies of task ':app:compileDebugJavaWithJavac'.

[@me_har]

thanks to you after adding path of adb in system variables I was able to run my first react native app.Thank you ❤❤

[@dhairyashgupta]

Sir, do I need to use another android phone or can I use my regular android phone for learning react native? and thank you so much for the amazing series.

[@rohankumartalreja]

You can use your regular phone.

[@HiteshChoudharydotcom]

Your regular phone is fine

[@chasedonovan8937]

@@HiteshChoudharydotcom what if i have iphone and not android?

[@manavdobariya9755]

I shifted to react-native CLI, since last two days,more than two hours each day spent in installation process...I got bunch of error while the same process but at the End "BUILD SUCCESSFULL" and satisfaction too...🎉☕

[@srinibaskhuntia201]

Man, installing react native was such a pain in the ass.Finally was able to do it.

[@anirudhcodes]

awesome!

[@khushsharma6470]

bro i stiill cant ddo iit can you help me

[@ravimahar5695]

🙏

[@achyuthr9104]

can anyone help like how to cast my mobile screen on pc??

[@elamandeep]

In Linux, React native setup is quite easy. I too faced one error while running npx react-native init command but it was easy fix😁😁

[@vaibhav5783]

I am facing some issue, can you give resource you referred to.

[@vikaswakde-dj2dw]

linux users having ufair advantage

[@lighteningbladegaming715]

Sir , when the next video will be out , eagerly waiting for that 🥺

[@HiteshChoudharydotcom]

Today, it’s already up for premier

[@KIKII.K]

i cannot connect my ios physically to the vscode instead of android. please help!

[@mridulbagla]

Please help, if you can:- When I am building the app with cmd (npx react-native run-android), there are multiple files start downloading, in which one of them is of 188mb in size and the download speed is very slow.

[@amirmule5333]

For first time it is lengthy process and taking more time. But later on it works fine. I am talking about windows platform.

[@HiteshChoudharydotcom]

Thanks for helping

[@mdmasudurrahman851]

how can i add devices ?

[@The_Aesthetic_Developer]

why is your discord http and not https ?

[@codewithroman8180]

Finaly i also solve problem from ur tutorial i love from pakistan

[@madhu1591]

I am getting blank screen on virtual device even though the build is successful. Could anyone please help to resolve it

[@ujjawalyadav7895]

I'm getting this error when I'm running npx run android Task :react-native-gradle-plugin:compileKotlin FAILED, can any one help me please

[@khushsharma6470]

iits been 3 days i coudnt do it . android device not setting up. Could not determine the dependencies of task ':app:compileDebugJavaWithJavac'. > Could not determine the dependencies of null. > SDK location not found. Define a valid SDK location can anyone help me

[@pasidurajapaksha8925]

your ssl cetificate has expired ,having a hard time getting the discord link,

[@sagz83]

All worked fine but the app keeps crashing on opening in emulator as well as phone , can some one help

[@chidambarjoshi3470]

Could someone help me out with this error: Could not compile settings file 'E:\ReactNative\platform-tools\Projects\MobileApp01\android\settings.gradle'.

[@ayushdabral4232]

did you resolve it? I am facing the same issue.

[@yt-1161]

for me it worked without needing to create "local.properties" file

[@sagar-ko3gb]

how to setup for iphone

[@daggupativishal7078]

Plz help Iam facing an error of "could not open settings generic class cache for settings file react native"

[@ANKUSHJHA-mw7ni]

Same Error I am facing, how to resolve this?

[@alakhkaler664]

there is not set up video for the mac

[@piyush-singhania]

So far with you 💌 (will keep on posting this comment to track my progress)

[@HiteshChoudharydotcom]

Keep it up

[@piyush-singhania]

@@HiteshChoudharydotcom Thank you for the course sir

[@zuberustad9392]

react native setup in ubuntu take me alsmot 4 hrs but its worthy now ;)

[@AlishaJain14]

Do you have any blog on it?

[@muhammadbilal-sd9kf]

Can you share the Discord Server link the given link is not working

[@HiteshChoudharydotcom]

hitesh.ai/discord

[@gaganvishwakarma6494]

I spent my whole day to solving 5:49 that error 🙂

[@olyrajak449]

my device is ln linux what can i use in the place of sdk.dir

[@akshaybansal2745]

Just locate the android sdk in your linux system .

[@AmitKumar-id7fn]

> Task :app:compileDebugJavaWithJavac FAILED i am encountering this error while running npx react-native run-android

[@unknown6032]

Where is the 4th part of this series i am waiting for 1 day

[@HiteshChoudharydotcom]

It will be available this week. Currently I am in Kerala

[@unknown6032]

@@HiteshChoudharydotcom ok thanks

[@ikik790]

iam unable to get adb --version

[@user-vm3zc4bc7c]

Couldn't connect with discord channel need help please

[@joelmathew716]

backEnd appWrite ?

[@sreeshilck9525]

How to mirror the device to laptop? 6:44

[@mazzghul]

+1 did you find a solution ?

[@gaurabkhanal2923]

discord link is invalid. Can someone give me latest discord link?

[@HiteshChoudharydotcom]

hc.lco.dev/discord

[@unstoppable-ayush]

error Failed to launch emulator. Reason: No emulators found as an output of `emulator -list-avds`.

[@HiteshChoudharydotcom]

Try our discord server, folks are very kind and helpful there. We will surely help you

[@unstoppable-ayush]

@@HiteshChoudharydotcom thanks u sir 😄 Now problem solved, helpful peoples

[@codingtodev]

Failed to launch emulator. Reason: No emulators found as an output of `emulator -list-avds`. warn Please launch an emulator manually or connect a device. Otherwise app may fail to launch.

[@Coder_DhruvArora]

I think your device is not connect with pc properly

[@mma-dost]

It took me 2 days finally today I was able to run the app on android phone

[@rahul_sidhha]

Please help me ! I am facing the error: unknown command 'run-android'

[@mma-dost]

@@rahul_sidhha what is the command you are running ?

[@rahul_sidhha]

@@mma-dost thank you for your reply .. now done 👍

[@mma-dost]

@@rahul_sidhha great but can you share what was the issue?

[@rahul_sidhha]

@@mma-dost when I was run the command : npx react-native run-android It was showing - unknown command 'run-android'

[@kousthubhyadavalli1077]

unable to join discord server

[@PratikshyaSharma432]

please upload. 2 videos per day

[@HiteshChoudharydotcom]

I will surely try from tomorrow

[@bestexplainer4831]

It will take 4 days finally I am able to run my first Hello world app on emulator.🎉🎉

[@HiteshChoudharydotcom]

Congratulations 🥂

[@oldgangster4119]

Error I got : A problem occurred evaluating project ':app'. > Failed to apply plugin 'com.android.internal.application'. > Android Gradle plugin requires Java 11 to run. You are currently using Java 1.8. Your current JDK is located in C:\Program Files\Java\jre1.8.0_311 You can try some of the following options: - changing the IDE settings. - changing the JAVA_HOME environment variable. - changing `org.gradle.java.home` in `gradle.properties`.

[@naveenb4462]

Upgrade the Java JDK version to 11

[@unstoppable-ayush]

there is showing jre not jdk ,install latest jdk

[@oldgangster4119]

Thanks, I upgraded the JDK and it works. Another mistake I did was SDK directory, I used one backlash \ instead of \\ two and therefore I was getting some kind of error.