How can I install an older version of npm even though I already have a newer version, in order to get react native working - react-native

Trying to use react native but apparently the newest version of npm doesn't work with it. How can I install an older version. Thorough instructions would be very helpful. Thanks
Also, I am VERY new to this entire programming thing. I know some basic JavaScript an decent Python but that's about it, is I too early for me to attempt to learn react native

Try this:
First uninstall existing npm using npm uninstall npm -g command .
Then remove nodejs.
Install nodejs again.
Now, install npm using npm install -g npm#4.6.1

Related

How to upgrade all libraries in an old react native project?

I have some experience in react native but I am relatively new to the field. I have cloned a react native project but it is very old and it contains a lot of libraries that are also either depricated or conflicting. I want to make the project compile as its not compiling now too because of the conflicting library issues. Any help or guidance regarding what i should do to make it work?
I have tried a number of things like deleting node modules and package-lock and running npm install but it doesnt run so I used --force but it still didnt make it work then I used npm install --legacy-peer-deps and it still didnt work.
i tried to upgrade the specific libraries that were mentioned in the errors but they also failed.
right now I have no idea what should be done.
As of npm version 5.2.0+, we can update all our dependencies without installing any additional packages.
Run the command in the root of your project:
npx npm-check-updates -u && npm i
"npx npm-check-updates -u" the command just updates the package.json that’s why we need tonpm i after the update the package.json.
for more info click here

Why can't I install the React Native Testing library?

I'm new to app testing and have started delving into this topic since yesterday. I wanted to write tests for my React Native app and tried to install React Native Testing Library with this command:
npm install --save-dev #testing-library/react-native #testing-library/jest-native
Then I ran into the following problem:
I tried to find a solution to this problem in Google, but I did not succeed. As far as I understand, the problem lies in the dependencies?
Please tell me what can I do in this case?
P.S. I tried to create a completely clean project with expo init, tried to install the library but got exactly the same error
Hit the same issue and didn't want to update everything at the moment so I solved the issue by running a suggestion on the npm error output:
npm install --save-dev #testing-library/react-native --legacy-peer-deps
It worked for me
it looks like you are running into a conflict with your react version dependencies. Please check the named modules for required packages they depend on.
Please have a look with: npm outdated and then maybe try to update your settings via npm update
also take a look here if you want: updating npm dependencies
you need to update react version after updating just install the latest version of testing-library

Error when installing 'react-navigation/stack' (Expo)

I am following a full-stack RN tutorial and apparently need to install #react-navigation/stack.
I've already tried running npm install followed by npm install --save react-navigation and then trying to install the wanted package again to no avail.
I find this error (which I cannot understand) weird because I was able to run npm install react-navigation/native just a few minutes ago.
Any suggestions would be helpful. Oh! And I am using Expo.

Modules from #react-native-community

It took me quite a few days to figure out I need to install the latest react-native cli from #react-native-community/cli but not from react-native-cli as I used to do.
Do:
yarn add #react-native-community/cli
but not:
yarn add react-native-cli
There are quite many modules now under #react-native-community, my question is that when I should install from #react-native-community/module_name and when just react-native-modulename.
Lots of libraries used to be a part of react-native library, but recently they decided to move them out. So now modules like react-native-camera can be installed via npm install react-native-camera and then imported from react-native-camera package.
It's easy to understand when to install a package from npm and when just import from react-native. If your import tells you that there is no such module in core lib, just go to npm and check it there.

how to delete installed library form react native project

I have installed a third party library in my project but it is not working , so I want to delete that library from my project ,
How can I do that ?
If it is a library based only on javascript, than you can just run npm uninstall --save package_name or npm uninstall --save-dev package_name
If you've installed a library with native content that requires linking, and you've linked it with rnpm then you can do: rnpm unlink package_name then follow step 1
If you've installed a library with native content manually, then just undo all the steps you took to add the library in the first place. Then follow step 1.
note rnpm as is deprecated
I followed the following steps:--
react-native unlink <lib name> -- this command has done the unlinking of the library from both platforms.
react-native uninstall <lib name> -- this has uninstalled the library from the node modules and its dependencies
Manually removed the library name from package.json -- somehow the --save command was not working for me to remove the library declaration from package.json.
After this I have manually deleted the empty react-native library from the node_modules folder
If you want to unlink already installed packages in react native
$ react-native unlink package_name
$ yarn remove package_name (if it is npm then npm uninstall --save)
If you execute 2nd step before 1st step you need to install relevant package back and execute 2nd step
I will post my answer here since it's the first result in google's search
1) react-native unlink <Module Name>
2) npm unlink <Module Name>
3) npm uninstall --save <Module name
From react-native --help
uninstall [options] uninstall and unlink native dependencies
Ex:
react-native uninstall react-native-vector-icons
It will uninstall and unlink its dependencies.
You can delete installed react native package with this command.
npm uninstall package_name
example:
npm uninstall react-native-camera
remove package name from package.json file
delete package-lock.json file
then run npm install
or you can run the following command to uninstall any package
npm uninstall package_name
you have to check your linked project, in the new version of RN, don't need to link if you linked it cause a problem,
I Fixed the problem by unlinked manually the dependency that I linked and re-run.
For iOS...
Remove the node package and install the pods.
If you're using npm:
npm uninstall package-name
If you're using yarn:
yarn remove package-name
Then simply install pods with:
npx pod-install
Typically the package.json directory is in the root of your project folder, so you should run these from there. npx pod-install will go to your ios folder and will run pod install. You do not need to run this step if you are not adding/removing native components.
I think for Android it might be the same steps, but without running the latter command since Android does not use cocoapods.
Simple and easy solution.
npm uninstall --save react-native-image-slider-box
All of the top answers are a bit outdated. They do work, but the process could be better. So I'm going to post a more modern and 'normal' way.
Assumptions:
Your project is not overly old, meaning that your project is not using react-native version <0.60 (less than 0.60). This is because in the past (when you had react-native version <0.60), you had to manually run commands like react-native unlink when you wanted to uninstall a package. Those commands still work but are no longer necessary.
The library/package works with autolinking or it doesn't need linking at all because the package doesn't use native code. If the package's installation instructions don't require you to run a command to link the package (e.g. react-native link), then it uses autolinking or it doesn't need linking at all. A package might suggest you run the link command but they'll also usually say it's not required if your project's react-native is version >=0.60. The majority of libraries are like this now. I'd be surprised if the package you want to uninstall uses native code but doesn't support autolinking. Read more about autolinking.
If the package you want to uninstall doesn't use native code, then the above paragraph about autolinking doesn't matter.
You of course remembered to remove any use of the package in your project, before you try to uninstall it.
You've checked if other packages require the package you want to delete as a peer dependency. In this case, you removing that dependency can cause your other packages to not work.
If your package was installed without any manual editing of native files (e.g. android/settings.gradle, ios/yourappname/AppDelegate.m, etc.) or any other configuration (e.g. mypackage.config.js), then you should just do this:
If using npm, run npm uninstall <yourpackage>. If using yarn, run yarn remove <yourpackage>.
(React native uses autolinking to unlink the packages automatically so this is all you should need to do to 'unlink'. Read more.)
Run cd ios && pod install && cd ..
You can skip this step if you're absolutely sure that the package is purely written in JavaScript/Typescript. My opinion is to just run it anyway so that way your brain doesn't have to spend energy thinking/worrying about this.
That's it. You're good to go. If you're not good to go here, then something is very wrong.
If you did have to manually edit native files or any other extra configuration to install your package, then:
It's a good idea to get all the info you can on what you exactly did when you installed the package. Any additional context you can learn is good.
You should look at your git history to see the changes you did when you installed the package.
It's a good idea to read the package's README or docs to remind you of anything else you might have forgotten.
In addition to the package's most up-to-date README or docs, it's a good idea to try to read the package's README/docs from the exact version that you're trying to uninstall. If you just read the README from the package's main github page, for example, then the info might be too new.
Undo the manual changes you did when installing the package. Ideally, use git diff or a git GUI program to help you out with this. Because this process varies depending on the package and what you actually did, it's hard to be more specific than that.
If using npm, run npm uninstall <yourpackage>. If using yarn, run yarn remove <yourpackage>.
(React native uses autolinking to unlink the packages automatically so this is all you should need to do to 'unlink'. Read more.)
Run cd ios && pod install && cd ..
You can skip this step if you're absolutely sure that the package is purely written in JavaScript/Typescript. My opinion is to just run it anyway so that way your brain doesn't have to spend energy thinking/worrying about this.
That's it, done. If things are not good at this point, then something is very wrong.
Remember to upvote if you feel this helped you, so it can be more visible. Thanks!
Uninstalling local packages:
npm uninstall <package_name>
for example:
npm uninstall react-native-webview
Uninstalling global packages:
npm uninstall -g <package_name>
for example:
npm uninstall -g react-native-webview