wafrat - wafrat (Page 8)

Fixing `Could not resolve dependency: npm ERR! peerOptional typescript@"^3.2.1" from react-scripts@4.0.1`

I tried running npm i on a fresh git clone, and ran into this error. % npm i npm ERR! code ERESOLVE npm ERR! ERESOLVE unable to resolve dependency tree npm ERR! npm ERR! Found: typescript@4.1.3 npm ERR! node_modules/typescript npm ERR! dev typescript@"^4.1.3"

Installing Node.js on an M1

After installing Flutter, I installed Node.js. It turns out there isn't a build of version 14.5.3 (LTS) for M1 yet. But they say that there is a build of version 15, which you can install via nvm. * Installing NVM: https://github.com/nvm-sh/nvm#install--update-script * Installing node

Setting up Flutter on an M1

I just got a new Mac Mini with M1 CPUs. The first thing I did was install Chrome. The next thing I did was install Flutter. Installing Flutter So I went to flutter.dev and downloaded the latest build. I extracted it, then created a new .zshrc and added flutter

visual studio code

Setting up Prettier in Visual Studio Code

Here's how to set up Prettier to reformat your files on save. First install the plugin by clicking the link at https://github.com/prettier/prettier-vscode. If VSC is installed, it'll handle the link and open the plugin page in VSC. Once installed, open VSC's settings page, and enable reformatting

web development

My ideal web development set up (updated Dec 2020)

Back in 2018, I wrote a post about my web development set up and how I planned to go from a local dev environment to a cloud one. In the end it didn't happen. Two years have since passed, and I've revisited my views on it. Here's how I'd go

flutter

Fixing keyboard-related crashes in Flutter

I've been using a bluetooth keyboard with my Flutter app. And in some cases, I experienced repeated crashes. Some of the errors were: E/InputEventSender( 4319): Exception dispatching finished signal. E/MessageQueue-JNI( 4319): Exception in MessageQueue callback: handleReceiveCallback E/MessageQueue-JNI( 4319): java.lang.IndexOutOfBoundsException: charAt: -1 < 0 E/MessageQueue-JNI( 4319)

flutter

How to hide the keyboard on scroll in Flutter

I've recently had to hide the keyboard on scroll in my app. Once the user has finished typing, they typically scroll down. By hiding the keyboard, they gain a lot of real estate. First try: ScrollController My view uses a SingleChildScrollView to show scrollable content. My first try was to

mongodb

Fixing `Error: Authentication failed.` on a previously perfectly running MongoDB server

Today after an update to Linux and a reboot, I became unable to authenticate on my MongoDB server. If you don't care about the details you can skip and read the TLDR below. It went like this: # mongo MongoDB shell version v3.6.21 connecting to: mongodb://127.0.0.

flutter

Useful Flutter posts

Here's a few collections of links to posts that have helped me. Scroll a widget into view In my case, I had a bunch of disparate widgets rendered in a ListView, so I couldn't predict where the widget I wanted to scroll to was. ListView's ScrollController only allows you to

Why was my Linux VM's disk always full?

Some of my VMs had been getting less and less space disk, and I thought it was because of the log files. Even after deleting them, I'd end up recovering less and less space. So I tried finding the largest files. A quick search on Google returns this: # du -a

flutter

Flutter introduced new buttons

Flutter 1.22 is out and introduces many things, but in this post, I'll only mention the buttons: * The old FlatButton has been replaced by TextButton. * The old RaisedButton has been replaced by ElevatedButton. * The old OutlineButton has been replaced by OutlinedButton. Note that the visual difference is almost imperceptible.

flutter

Fixing `No profiles for my_app were found: Xcode couldn't find any iOS App Development provisioning profiles matching my_app.`

After finally managing to compile my Flutter app again in iOS, now it's the publishing process that fails: error: No profiles for [my_app] were found: Xcode couldn't find any iOS App Development provisioning profiles matching [my_app]. Automatic signing is disabled and unable to generate a profile. To enable

flutter

Fixing `flutter/.pub-cache/hosted/pub.dartlang.org/firebase_auth-0.15.4/ios/Classes/FLTFirebaseAuthPlugin.m:505:38: error: no known class method for selector 'credentialWithProviderID:IDToken:rawNonce:accessToken:'`

TLDR Run flutter clean. Long version I got this error when compiling my app for iOS. A quick search pointed me to https://github.com/FirebaseExtended/flutterfire/issues/1679 from Dec 2019. Apparently firebase_auth: ^0.15.3 doesn't compile in iOS? I'm on 0.15.4. They suggest to

flutter

Fixing `Execution failed for task ':firebase_auth:compileReleaseJavaWithJavac'. java.lang.NullPointerException (no error message)`

My Flutter app stopped compiling today, with the following exception: Execution failed for task ':firebase_auth:compileReleaseJavaWithJavac'. > java.lang.NullPointerException (no error message) A search led me to https://github.com/flutter/flutter/issues/27090, which states you should migrate to AndroidX by setting two variables in android/gradle.

angulardart

Fixing my AngularDart webapp after Chrome 86 update

Yesterday, my AngularDart webapp broke, with two exceptions. One in firebase-app.js: Error: Expected a value of type 'UserJsImpl', but got one of type 'MemoryInfo' And one in AngularForms: EXCEPTION: NoSuchMethodError: 'call' method not found Receiver: Instance of 'DeferredValidator' Arguments: [] It still works in Safari and Firefox. Another thing to

flutter

Fixing `ERROR ITMS-90208: "Invalid Bundle. The bundle Runner.app/Frameworks/App.framework does not support the minimum OS Version specified in the Info.plist."`

My app compiled fine, but when uploading to the App Store, I got this error": Return status of iTunes Transporter was 1: ERROR ITMS-90208: "Invalid Bundle. The bundle Runner.app/Frameworks/App.framework does not support the minimum OS Version specified in the Info.plist." A quick search on Google

Restarting a ghost Docker container

My blog had been running for 5 months without a hitch, until just now. It started returning error 502. I'm still not sure why it happened, and I didn't check the logs. I simply restarted the container and it worked again: # docker ps ==> output the name as some-ghost # docker restart

flutter

Integrate Noto Serif KR into a Flutter app

I wanted to try out google_fonts and use it to display beautiful text in Korean. It was harder than the doc said. I started according to the instructions at https://pub.dev/packages/google_fonts, adding the dependency to my pubspec.yaml, then using one of its predefined methods:

flutter

Fixing `fatal: Not possible to fast-forward, aborting.` when upgrading Flutter

Because of this new package I needed, I had to upgrade my Flutter. So I ran flutter upgrade as usual. This time instead of upgrading without a hitch, it told me: % flutter upgrade Upgrading Flutter from ~/flutter... From https://github.com/flutter/flutter ... fatal: Not possible to fast-forward, aborting. So

yfinance

Fixing CERTIFICATE_VERIFY_FAILED when using yfinance's ticker.info

I've been using the excellent yfinance project (https://github.com/ranaroussi/yfinance) to get stock prices. However today when trying to read a ticker's basic information, it failed on me with: File ".../venv/lib/python3.7/site-packages/pandas/io/html.py", line 848, in _parser_dispatch raise ImportError("lxml not

Hosting a Flask app

The Flask quickstart guide is great. However when it was time to deploy it on my DigitalOcean, I found it impossible to access. The doc says you should run to open it to external machines: flask run --host=0.0.0.0 Yet I couldn't reach it remotely. Turns out

angulardart

Chrome 81 broke my AngularDart webapp

My chatting application just broke. When I press Enter to send a message, it refreshes the page and navigates to ?. Then if I try again, it'll simply throw an exception: EXCEPTION: TypeError: Instance of 'eE': type 'eE' is not a subtype of type 'minified:G' I tried outputting SourceMaps by

Listing open ports on MacOS

I used to use netstat, but this command outputs a really clean status: sudo lsof -PiTCP -sTCP:LISTEN

flutter

Switching Flutter from beta back to stable

It should be as simple as running: flutter channel stable flutter upgrade But after doing so, I ran into the following error when trying to run integration tests in iOS: [VERBOSE-2:shell.cc(199)] Dart Error: Can't load Kernel binary: Invalid kernel binary format version. [VERBOSE-2:engine.cc(198)] Could

dart

Fixing `Undefined name 'required' used as an annotation.` in Dart

I saw the `@required` annotation in a Firebase Auth method signature, and tried to override it. However in my project it threw this error: Undefined name 'required' used as an annotation. Try defining the name or importing it from another library.dart(undefined_annotation) What was odd was that when