Develop Reference

Error while install exists Flutter project

Error while dart run build_runner build
Log: https://pastebin.com/k0gpWuun
Verbose Log: https://pastebin.com/BNgVh6pV
pubspec.yaml:
environment:
sdk: ">=2.12.0 <3.0.0"
dependencies:
flutter:
sdk: flutter
# The following adds the Cupertino Icons font to your application.
# Use with the CupertinoIcons class for iOS style icons.
cupertino_icons: ^1.0.2
webview_flutter: ^2.0.9
flutter_inappwebview: ^5.3.2
url_launcher: ^6.0.8
flutter_svg: ^0.22.0
uni_links: ^0.5.1
flutter_webview_plugin: ^0.4.0
flutter_share: ^2.0.0
package_info_plus: ^1.0.6
dio: ^4.0.0
sign_in_with_apple: ^3.0.0
google_sign_in: ^5.1.0
json_serializable: ^4.1.4
build: ^2.1.0
get_it: ^7.2.0
dev_dependencies:
flutter_test:
sdk: flutter
build_runner:
flutter clean and other cmd's not working for me
Reinstall Flutter, migrate to Linux (heh), reinstall sdk's

Please update your pubspec.yaml file to
dependencies:
analyzer: ^5.4.0 <- add this
dev_dependencies:
build_runner: ^2.3.3 <- add into dev_dependecies

Flutter Pub Get Error when trying to run some old project

Evening All,
I am was trying to run some old project in github but when trying to run pub get having this kind of error
Running "flutter pub get" in budgex...
Because flutter_html >=2.0.0-nullsafety.1 depends on html >=0.15.0 <1.0.0 and every version of link_previewer depends on html ^0.14.0+2, flutter_html >=2.0.0-nullsafety.1 is incompatible with link_previewer.
So, because budgex depends on both link_previewer ^1.2.1 and flutter_html ^2.2.1, version solving failed.
pub get failed (1; So, because budgex depends on both link_previewer ^1.2.1 and flutter_html ^2.2.1, version solving failed.)
exit code 1
i am already change some dependencies into latest version without local package folder and files from plugin here is the pubspec.yaml
name: budgex
description: This Application is a Simple Budget Manager
publish_to: "none"
version: 1.0.0+1
environment:
sdk: ">=2.12.0 <3.0.0"
dependencies:
flutter:
sdk: flutter
flutter_localizations:
sdk: flutter
bitbox : ^0.0.5
flutter_icons : ^1.1.0
link_previewer : ^1.2.1
web3dart : ^2.5.1
animated_bottom_navigation_bar: ^0.2.1
animations: ^1.1.2
badges: ^2.0.1
beamer: ^0.14.1
bitcoin_flutter: ^2.0.2
bot_toast: ^3.0.5
cached_network_image: ^3.0.0
chart_sparkline: ^1.0.5
charts_flutter: ^0.6.0
container_tab_indicator: ^0.3.0
csv: ^4.0.3
cupertino_icons: ^1.0.2
dartx: ^0.7.1
dartz: ^0.10.0-nullsafety.2
data_connection_checker: ^0.3.4
decimal: ^1.2.0
encrypt: ^5.0.0
english_words: ^3.1.0
extended_image: ^4.1.0
file_picker: ^3.0.3
fl_chart: ^0.36.2
flash: ^1.5.1
flex_color_picker: ^2.1.1
flutter_barcode_sdk: ^1.2.2
flutter_bloc: ^7.0.0
flutter_dynamic_icon: ^2.0.0
flutter_echarts: ^2.1.0
flutter_facebook_auth: ^3.5.0
flutter_form_builder: ^6.0.1
flutter_html: ^2.2.1
flutter_phoenix: ^1.0.0
flutter_screenutil: ^4.0.3
flutter_slidable: ^0.5.7
flutter_spinkit: ^4.1.2+1
flutter_staggered_animations: ^0.1.2
flutter_staggered_grid_view: ^0.4.0
flutter_svg: ^0.22.0
flutter_swiper: ^1.1.6
flutter_uix: ^0.1.2-nullsafety.2
font_awesome_flutter: ^9.1.0
formz: ^0.4.0
freezed_annotation: ^0.14.2
google_fonts: ^2.1.0
google_sign_in: ^5.0.4
grouped_list: ^4.0.0
hive: ^2.0.4
hive_flutter: ^1.1.0
hooks_riverpod: ^0.14.0+4
http_auth: ^0.2.5
json_diff: ^0.2.0
keccak: ^1.0.3
keyboard_avoider: ^0.1.2
liquid_pull_to_refresh: ^3.0.0
local_auth: ^1.1.6
logger: ^1.0.0
marquee: ^2.2.0
material_design_icons_flutter: ^4.0.5345
modal_bottom_sheet: ^2.0.0
money_formatter: ^0.0.3
onesignal_flutter: ^3.0.0
overlay_support: ^1.2.0
package_info: 2.0.0
page_transition: ^1.0.9
path: ^1.6.4
path_provider: ^2.0.2
percent_indicator: ^2.1.7+2
permission_handler: ^8.1.2
pinput: ^1.2.0
pretty_qr_code: ^2.0.2
protobuf: ^2.0.0
protoc_plugin: ^20.0.0
qr: ^2.1.0
qr_flutter: ^4.0.0
random_string: ^2.0.1
readmore: ^1.0.1
riverbloc: ^0.5.0
rounded_loading_button: ^2.0.5
shared_preferences: ^2.0.6
shimmer: ^1.0.1
showcaseview: ^0.1.6
sticky_headers: ^0.1.8
syncfusion_flutter_charts: ^19.2.44+1
table_calendar: ^3.0.1
theme_provider: ^0.5.0
timeago: ^3.1.0
transparent_image: ^1.0.0
ultimate_data_generator : ^1.0.0
validators: ^2.0.0+1
dev_dependencies:
flutter_test:
sdk: flutter
bloc_test: ^8.0.2
build_runner: ^2.0.5
flutter_launcher_icons: ^0.9.0
flutter_native_splash: ^1.1.9
freezed: ^0.14.2
hive_generator: ^1.1.0
json_serializable: ^4.1.3
mockito: ^5.0.10
dependency_overrides:
args: ^2.1.1
crypto: ^3.0.0
hex: ^0.1.2
convert: ^3.0.0
intl: ^0.17.0
bip39: ^1.0.5
pointycastle: ^3.0.0
dart_style: ^2.0.0
http: ^0.13.0
fixnum: ^1.0.0
vin_decoder : ^0.1.4+1
basic_utils : 3.3.3
flutter_icons:
android: true
ios: true
image_path: assets/icon/icon.png
flutter_native_splash:
image: assets/images/splash.png
color: "121212"
android_disable_fullscreen: true
flutter:
uses-material-design: true
# shed hill people icon fragile critic vicious return write coconut jump clutch
# royal calm banner faith tiny capital tooth nerve attract addict garbage wish
assets:
- assets/
- assets/images/
- assets/rive/
- assets/icon/
- fonts/
fonts:
- family: Avenir Next
fonts:
- asset: fonts/AvenirNext.otf
- family: WorkSans
fonts:
- asset: assets/fonts/WorkSans-Regular.ttf
- asset: assets/fonts/WorkSans-Medium.ttf
weight: 500
- asset: assets/fonts/WorkSans-SemiBold.ttf
weight: 600
- asset: assets/fonts/WorkSans-Bold.ttf
weight: 700
# - family: Roboto
# fonts:
# - asset: fonts/Roboto-Italic.ttf
# - asset: fonts/Roboto-normal.ttf
Anyone can help this problem? appreciated it for helping

One of the way to solve above problem is, rather than specifying version code beside of any package you can just do below thing
flutter_html:
link_previewer:
...

you will need to update your dependencies so that they are compatible with each other. You can do this by modifying the version constraints in your pubspec.yaml file. For example, if you change the version constraint for html in link_previewer to be compatible with the constraint in flutter_html, you should be able to run flutter pub get
It is also possible that a newer version of link_previewer or flutter_html may have been released that resolves this conflict, so you may want to check for updates to these packages. However, be sure to carefully review the changelog for any updates to make sure that they won't break your project.
This error indicates that there is a conflict between the versions of link_previewer and flutter_html

Undefined symbol OBJC Class in Flutter

I'm trying to build my flutter project but I'm getting this error so I'm just wondering how can I fix this. This happens after adding the Cookie Manager plugin. I can run the app on an emulator and physical device without any problem but it gives me this error when I try to build it.
Podfile
# Uncomment this line to define a global platform for your project
platform :ios, '9.0'
use_frameworks!
pubspec.yaml
dependencies:
flutter:
sdk: flutter
# The following adds the Cupertino Icons font to your application.
# Use with the CupertinoIcons class for iOS style icons.
cupertino_icons: ^1.0.2
lottie: ^1.2.1
hive: ^2.0.4
hive_flutter: ^1.1.0
flutter_hooks: ^0.16.0-nullsafety.0
hooks_riverpod: ^0.13.1
http: ^0.13.3
flutter_svg: ^0.22.0
flutter_facebook_auth: ^3.5.2
carousel_slider: ^4.0.0
modal_bottom_sheet: ^2.0.0
flutter_html: ^2.1.1
flutter_spinkit: ^5.0.0
jiffy: ^4.1.0
share: ^2.0.4
google_sign_in: ^5.1.1
wp_json_api: ^3.0.0
fluttertoast: ^8.0.8
flutter_tts: ^3.2.2
email_validator: ^2.0.1
onesignal_flutter: ^3.2.7
google_mobile_ads: ^0.13.3
url_launcher: ^6.0.9
sticky_headers: ^0.2.0
flutter_styled_toast: ^2.0.0
flutter_math_fork: 0.4.2+2
persistent_bottom_nav_bar: ^4.0.2
provider: ^6.0.2
path_provider: ^2.0.8
flutter_launcher_icons: "^0.9.2"
webview_flutter: ^2.0.4
webview_cookie_manager: ^2.0.0
shared_preferences: ^2.0.12

Target of URI doesn't exist:package:gradient_input_border/gradient_input_border.dart

I am new to flutter from android background,
I have imported a futter project both in VS and Android studio but I am getting Target URI dosen't expsist on these import statement.
import 'package:flutter_localizations/flutter_localizations.dart';
import 'package:gradient_input_border/gradient_input_border.dart';
My pubsec.yaml file is below here.
name: Emall
description: Ecommerce website
environment:
sdk: '>=2.10.0 <3.0.0'
dependencies:
cupertino_icons: ^0.1.2
scoped_model: ^1.0.1
rxdart: ^0.24.0
http: ^0.12.0+2
json_annotation: ^2.0.0
flutter_html: ^1.0.2
flutter_swiper: ^1.1.6
cached_network_image: ^2.3.3
shared_preferences: ^0.5.7+3
country_code_picker: ^1.1.7
url_launcher: ^5.4.11
timeago: ^2.0.26
flutter_rating_bar: ^3.0.1+1
webview_flutter: ^0.3.18+1
font_awesome_flutter: ^8.5.0
share: ^0.6.3+3
place_picker: 0.9.16
location: 2.3.5
fluttertoast: ^3.1.3
flutter_paystack: 1.0.2+1
sign_in_with_apple: ^2.5.2
image_picker: ^0.6.6+4
flutter_webview_plugin: 0.3.10+1
smooth_star_rating: ^1.1.1
flutter_icons: ^1.1.0
firebase_auth: ^0.18.0+1
google_sign_in: ^4.5.1
flutter_facebook_login: ^3.0.0
fab_circular_menu: ^0.1.4
google_fonts: ^0.3.5
stripe_payment: ^1.0.7
network_to_file_image: ^2.3.1
barcode_scan: ^3.0.1
geocoder: ^0.2.1
firebase_core: 0.5.0
firebase_analytics: 6.0.0
firebase_storage: 4.0.0
cloud_firestore: 0.14.0+2
photo_view: ^0.10.2
intro_slider: ^2.3.1
firebase_messaging: 7.0.0
rounded_loading_button: ^1.0.14
pin_code_fields: ^5.2.0
lottie: ^0.7.0+1
webview_cookie_manager: ^1.0.4
flutter_native_splash: ^0.1.9
change_app_package_name: ^0.1.2
flutter_launcher_icons: ^0.8.0
flutter:
uses-material-design: true
assets:
- lib/assets/images/
- lib/assets/images/intro/
dev_dependencies:
flutter_test:
sdk: flutter
flutter_localizations:
sdk: flutter
flutter_native_splash:
image: lib/assets/images/splash.png
color: "ffffff"
fonts:
- family: MStoreIcons
- fonts:
- asset: lib/assets/fonts/Icons/MStoreIcons.ttf
flutter_icons:
android: "launcher_icon"
ios: true
image_path: "lib/assets/images/icon.png"
Things I have already tried
Commands
flutter clean
flutter pub get
flutter packages upgrade
Invalidate Cache / Restart on Android Studio
Restarted Visual studio.

You need to install gradient_input_package.
dependencies:
// Add this dependency under dependecies as shown.
gradient_input_border: ^1.0.0
Then run flutter pub get.
Edit 1:
Try this for flutter_localizations,
dependencies:
flutter:
sdk: flutter
flutter_localizations:
sdk: flutter

error occurs during the project of android studio

My pubspec.yaml:
cupertino_icons: "^0.1.2"
firebase_auth: "^0.15.5+3"
firebase_core: any
firebase_database: "^3.1.3"
Here is the error:
/Users/sunny/flutter/bin/flutter --no-color packages get Error
detected in pubspec.yaml: Error on line 26, column 7: Expected a key
while parsing a block mapping. ╷ 26 │ cupertino_icons:
"^0.1.2" │ ^ ╵ Please correct the pubspec.yaml file at
/Users/sunny/AndroidStudioProjects/flutter_app1/connect_world/firebase_setup/pubspec.yaml
Process finished with exit code 1:

pubspec.yaml file require a correct usage of identation (using space and no tabs), see here for more info : https://learn.getgrav.org/16/advanced/yaml#yaml-basic-rules
Edit your file with this :
dependencies:
flutter:
sdk: flutter
cupertino_icons: "^0.1.2"
firebase_auth: "^0.15.5+3"
firebase_core: any
firebase_database: "^3.1.3"