I recently wanted to reset a react-native project to most recent version, and so I initialised the seed project - "AwesomeProject"... The problem is that it comes with 19 flowtype errors "out of the box"
node_modules/react-native/Libraries/CustomComponents/NavigationExperimental/NavigationCardStackStyleInterpolator.js
lines:91,94,97,104,107,137,142,148
node_modules/react-native/Libraries/CustomComponents/NavigationExperimental/NavigationHeaderStyleInterpolator.js
lines:57,68,74,87,94
node_modules/react-native/Libraries/Experimental/WindowedListView.js
lines:629, 629, 665,665
node_modules/react-native/Libraries/Image/Image.ios.js
line:272
I am reluctant to make changes to these files as it may create knock on effects. Does anyone have a work around?
In general, whenever you want flow to ignore a file, you can just specify that file under the [ignore] section of your .flowconfig.
That said, I just react-native init'd a project, using react-native-cli 1.0.0 and react-native 0.29.1, and ran a flow server on the root of my project, and didn't get any errors.
Related
I'm really struggling with what seems like a very primitive error. I have installed react-native-config and when console.logging the Config object it returns {}.
The problem occurs both on android and iOS and it doesn't seem to be a linking issue because (even though RN 71.3 doesn't require manual linking) when following the steps to link manually on android I got an error saying RNCConfigPackage already linked.
This is a simplified version of my code:
import Config from 'react-native-config';
console.log(Config);
And this is what my .env file looks like:
REACT_APP_STAGE=development
TEST=ThisIsATest
ANOTHER_TEST=ThisIsAnotherTest
Debugging attempts
I have already tried:
Running gradlew clean and pod install (even though it's not a platform specific issue)
Run with ENVFILE=.env react-native run-android to hard code the env file
I understand that this is very limited information in order to debug the issue but any direction and help is appreciated including any approach you would follow to debug.
EDIT: The Config appeared in the end but is very late to update, an issue more people seem to be facing, I have used react-native-dotenv instead.
I tried to create a nuxt app with the guide from the official website, chose default options because I wanted the starter template but on running npm run dev, I keep encountering the error:
This relative module was not found:
* ./components/nuxt-error.vue in ./.nuxt/index.js
I've tried searching about it but I couldn't find any useful resource/fix. I've also tried vue init nuxt-community/starter-template for the installation but I still get the same error.
Any fixes?
So I found a solution. I couldn’t figure out the error because the nuxt-error.vue file was actually imported correctly. Turns out “npm” installations have been giving me issues (had issues with TailwindCSS too).
So if you ever encounter this error on loading the base nuxt app, recreate the project using “yarn” instead. Works like magic!
This Error basically means, that in one of your files you are trying to import another file with the relative path of ./components/nuxt-error.vue but no file with this path exists.
However
I just read that vue init nuxt-community/starter-template is deprecated and no longer maintained. Instead of fixing this Error you should restart your project with npx create-nuxt-app <yourAppName>. https://github.com/nuxt-community/starter-template
I keep receiving this error when running my App.js for React Native that was working perfectly well before I attempted installing Victory charts. Somehow something broke and after over three hours of work I am unable to figure out a solution. I have tried everything I could find on the web including uninstalling watchman, reinstalling watchman, reverting to React Native 0.55.4, some other recommended commands. Nothing is working.I am so confused.
$ yarn add react-native-scripts
This helped.
I think the other library may hurt the installation part of your package. To solve this issue on IOS you need to add its library like below:
First do 'yarn add react-native-scripts'. In the case that it dose't work continue other steps.
1-Go to the node module of your project and find the package folder and find the ios file inside it.
2- Then drag it into ‘library’ section of your xcode. (It is the subset of your project folders)
3- Then go to ‘build phase’ and in the ‘Link binary with libraries’ add it there by clicking on the plus sign
4- Then in some cases you need to add the correct path of the ios file inside your node module in the xcode. To do that you should go to ‘build setting’ section in the xcode and search header there. Then you need to add the path there below other paths.
5- Then clear everything (cmd+shift+k) and then finally compile it.
I hope it works for you.
In my case the "crna-entry.js" file does exist in the roots and my project should work (nothing have been modified from last time when it does work).
After hours searching, finally I figured out the reason:
the packager's directory checking is case-sensitive and in windows terminal the drive "c:/" will not be auto-corrected to "C:/" which will lead to error.
Hope this will help someone who gets the same error.
Below is the full error message:
The development server returned response error code:404 Cannot find
entry file node_modules/react-native-scripts/build/bin/crna-entry.js
in any of the roots:
Hope you could help me here:
I'm currently building an app which I created through CRNA and then ejected. I get the ios version right on but I'm currently struggling a lot with the android version.
When running react-native run-android all I can get is the following error:
Error type 3
Error: Activity class {com.myapp/com.myapp.MainActivity} does not exist.
I've checked app/build.gradle, app/src/main/AndroidManifest.xml, app/src/main/java/com/myapp/MainActivity.java and app/src/main/java/com/myapp/MainActivity.java for name errors on package. I've tried moving from com.myapp to com.mebius.myapp and com aswell.
Seems this comes from the only plugin I'm using. I'm keeping on the investigation
Any hints?
There are 3 possible reasons for the android app build fails to make
1. You need to define sdk path in android/local.properties
if local.properties doesn't place then make a file names with that
add
sdk.dir = home/user/AndroidApp/local/Sdk
You can match with their system path..
2. Your genymotion or avd must enable with the android studio
3. You must have to go with the following command
npm start
in new terminal .
Please go through with it.
Thanks
Actually I had a problem with my gradle config which look like:
include ':react-native-sensors'
project(':react-native-sensors').projectDir = new File(rootProject.projectDir, '../node_modules/react-native-sensors/android')
rootProject.name = 'accelapp'
I needed to add: include ':app'
I don't know if it's due to the process of ejecting from CRNA or if it's due to react-native link react-native-sensors though.
EDIT After some investigation, I couldn't reproduce this issue. This leads me to say it was a faulty copy/paste...
I've googled many sites but cannot found a tutorial that actually works for react-native + flow type.
There was flow installation guide from react-native#0.22 document, but it's gone in react-native#0.46.
However, it comes up again in Running Tests and Contributing, I tested to run npm run flow but not working, and yet it doesn't say how to make it works. It's possibly been a missing part inside of react-native documentation.
What I need is to run flow correctly with react-native. Auto-check flow every time I reload the page with ⌘R would be the best.
I just finished covering half of our project by flow and we use RN 0.44.0.
The tricky part is: do you also want to know errors inside node_modules, someone says those errors are helpful.
Anyway, I disable the error in node_modules, and here is my .flowconfig:
[ignore]
<PROJECT_ROOT>/node_modules/.*
<PROJECT_ROOT>/flowLibs.js
.....
[include]
[libs]
./flowLibs.js
.....
[lints]
[options]
You should install flow first if you not setup correctly,
npm install --save-dev flow-bin
and also run this in you project root after install:
npm run flow init
If npm run flow init does not work, just add "flow": "flow" in npm scripts.
After init, put my .flowconfig in your project .flowconfig file.
Then create a js file flowLibs.js and if npm run flow check cause your any error like Module_Name. Required module not found
Write down code in flowLibs.js:
declare module 'Module_Name' { declare var exports: any; };
After that, you should be good to go with you project now.
BTW, don't forget add //#flow on the top of the file which you want to check type.
I found flowtype is built in with react-native#0.46+.
For react-native document, I think they should at least tell flowtype is already built in. And for the rest document ex: Testing Your Changes#flow, it won't work without flow-bin, they should mention that too.
To make flowtype of best use, I use it with Visual Studio Code.
Steps:
Install flow-bin globally, by npm i flow-bin -g.
Make sure your terminal is responsive to command flow.
Install vscode flow extension.
Set vscode workspace preference with "javascript.validate.enable": false, to disable default javascript validation, so flow validation can take place.
To access vscode preference, ALT+F,P,S for windows, ⌘+, for mac.
then you have flowtype installed with visual result with every key stroke:
Try this one:
Adding Flow to React Native
https://medium.com/react-native-training/getting-started-with-react-native-and-flow-d40f55746809
Hope this helps!