A required package was not found

[dishant-livebird]

Steps to reproduce the behavior:

1. When run project with flutter run in Linux platform
2. Error getting :->

CMake Error at /snap/flutter/141/usr/share/cmake-3.16/Modules/FindPkgConfig.cmake:463 (message):
 A required package was not found
Call Stack (most recent call first):
 /snap/flutter/141/usr/share/cmake-3.16/Modules/FindPkgConfig.cmake:643 (_pkg_check_modules_internal)
 flutter/ephemeral/.plugin_symlinks/desktop_webview_window/linux/CMakeLists.txt:10 (pkg_check_modules)

Use both version used 0.1.6 and 0.2.0

Also try to run GitHub example code and getting above same error.

Flutter version info :

Flutter 3.10.5 • channel stable • https://github.com/flutter/flutter.git
Framework • revision 796c8ef792 (2 weeks ago) • 2023-06-13 15:51:02 -0700
Engine • revision 45f6e00911
Tools • Dart 3.0.5 • DevTools 2.23.1

Flutter Doctor summary

Doctor summary (to see all details, run flutter doctor -v):
[✓] Flutter (Channel stable, 3.10.5, on Ubuntu 22.04.2 LTS 5.19.0-46-generic, locale en_US.UTF-8)
[✗] Android toolchain - develop for Android devices
    ✗ Unable to locate Android SDK.
      Install Android Studio from: https://developer.android.com/studio/index.html
      On first launch it will assist you in installing the Android SDK components.
      (or visit https://flutter.dev/docs/get-started/install/linux#android-setup for detailed instructions).
      If the Android SDK has been installed to a custom location, please use
      `flutter config --android-sdk` to update to that location.

[✗] Chrome - develop for the web (Cannot find Chrome executable at google-chrome)
    ! Cannot find Chrome. Try setting CHROME_EXECUTABLE to a Chrome executable.
[✓] Linux toolchain - develop for Linux desktop
[!] Android Studio (not installed)
[✓] VS Code (version 1.79.2)
[✓] Connected device (1 available)
[✓] Network resources

[crossle]

Dont use flutter from snap, use git clone from GitHub

[dishant-livebird]

Dont use flutter from snap, use git clone from GitHub

Why flutter from GitHub instead of snap. What is the difference between them and which version download from GitHub. Provide link for it.

[dishant-livebird]

i get same issue even after flutter clone and install from GitHub.

Flutter 3.12.0-14.0.pre.48 • channel stable • https://github.com/flutter/flutter.git
Framework • revision bc49cd1bca (10 hours ago) • 2023-07-05 17:42:57 -0700
Engine • revision bc49cd1bca
Tools • Dart 3.1.0(build 3.1.0-262.0.dev) • DevTools 2.25.0

[viachaslavic]

@dishant-livebird, make sure you have the webkit2gtk package installed on your system.

pkg-config --list-all | grep webkit2gtk-4.1

The command above should output the found version. If the output is empty, then try run (for Ubuntu 22.04):

sudo apt update ; sudo apt install libwebkit2gtk-4.1-dev

[dIvYaNshhh]

I am facing a similar issue on ubuntu 20.04,
How to install libwebkit2gtk-4.1-dev or webkit2gtk-4.1 on ubuntu 20.04?

[viachaslavic]

@dIvYaNshhh, you can try using webkit2gtk-4.0 changing

flutter-plugins/packages/desktop_webview_window/linux/CMakeLists.txt

Line 10 in a8e2bab

pkg_check_modules(WebKit REQUIRED IMPORTED_TARGET webkit2gtk-4.1)

to

  pkg_check_modules(WebKit REQUIRED IMPORTED_TARGET webkit2gtk-4.0) 

or to more general:

pkg_check_modules(WebKit IMPORTED_TARGET webkit2gtk-4.1) 
if (NOT WebKit_FOUND)
  pkg_check_modules(WebKit REQUIRED IMPORTED_TARGET webkit2gtk-4.0)  # for backward compatibility
endif ()

And install webkit2gtk-4.0 from your package manager:

sudo apt update ; sudo apt install libwebkit2gtk-4.0-dev

According to my observations, backward compatibility with webkit2gtk-4.0 is preserved, but I do not give an absolute guarantee.