GNU/Linux build error
I build with the following instructions in a PKGBUILD as I want to package this programme for the [AUR](https://aur.archlinux.org/) like I did with the [binary](https://aur.archlinux.org/packages/cake-wallet-bin) but this time compiled from source. I am on HEAD of branch `linux/password-direct-input`. The required dependencies are installed.

```
    cd "${srcdir}"/"${pkgname}"/scripts/linux/ || exit 1
    ./cakewallet.sh

    cd "${srcdir}"/"${pkgname}"/ || exit 1
    flutter pub get
    flutter packages pub run ./tool/generate_new_secrets.dart
    ./model_generator.sh
    flutter packages pub run ./tool/generate_localization.dart
    flutter build linux --release
```

The output indicates that one command fails.

```
Resolving dependencies...
Got dependencies!
This app is using a deprecated version of the Android embedding.
To avoid unexpected runtime failures, or future build failures, try to migrate this app to the V2 embedding.
Take a look at the docs for migrating an app:
https://github.com/flutter/flutter/wiki/Upgrading-pre-1.12-Android-projects
Deprecated. Use `dart run` instead.
Building package executable...
Built cake_wallet:generate_pubspec.
Resolving dependencies... (4.5s)
+ _fe_analyzer_shared 47.0.0 (67.0.0 available)
+ analyzer 4.7.0 (6.4.1 available)
+ animate_do 2.1.0 (3.3.3 available)
+ another_flushbar 1.12.30
+ archive 3.4.10
+ args 2.4.2
+ asn1lib 1.5.2
+ async 2.11.0
+ auto_size_text 3.0.0
+ barcode_scan2 4.3.0
+ base32 2.1.3
+ basic_utils 5.7.0
+ bech32 0.2.2 from git https://github.com/cake-tech/bech32.git at 057550
+ bip32 2.0.0
+ bip39 1.0.6
+ bitcoin_flutter 2.0.2 from git https://github.com/cake-tech/bitcoin_flutter.git at df9204
+ boolean_selector 2.1.1
+ bs58check 1.0.2
+ build 2.4.1
+ build_config 1.1.1
+ build_daemon 4.0.1
+ build_resolvers 2.0.10 (2.4.2 available)
+ build_runner 2.4.8
+ build_runner_core 7.2.10 (7.3.0 available)
+ built_collection 5.1.1
+ built_value 8.9.0
+ cake_backup 1.0.0+1 from git https://github.com/cake-tech/cake_backup.git at 3aba86
+ characters 1.3.0
+ checked_yaml 2.0.3
+ cli_util 0.3.5 (0.4.1 available)
+ clock 1.1.1
+ code_builder 4.10.0
+ collection 1.18.0
+ connectivity 3.0.6 (discontinued)
+ connectivity_for_web 0.4.0+1
+ connectivity_macos 0.2.1+2
+ connectivity_platform_interface 2.0.1
+ convert 3.1.1
+ cross_file 0.3.3+8
+ crypto 3.0.3
+ cryptography 2.7.0
+ cupertino_icons 1.0.6
+ dart_style 2.2.4 (2.3.4 available)
+ dbus 0.7.10
+ device_display_brightness 0.0.6
+ device_info 2.0.3
+ device_info_platform_interface 2.0.1
+ device_info_plus 8.1.0 (9.1.2 available)
+ device_info_plus_platform_interface 7.0.0
+ devicelocale 0.6.0 from git https://github.com/cake-tech/flutter-devicelocale at 454226
+ dio 4.0.6 (5.4.0 available)
+ dotted_border 2.1.0
+ encrypt 5.0.3
+ fake_async 1.3.1
+ ffi 2.1.0 (2.1.2 available)
+ file 6.1.4 (7.0.0 available)
+ file_picker 5.3.1 (6.1.1 available)
+ fixnum 1.1.0
+ flutter 0.0.0 from sdk flutter
+ flutter_inappwebview 5.8.0 (6.0.0 available)
+ flutter_launcher_icons 0.11.0 (0.13.1 available)
+ flutter_localizations 0.0.0 from sdk flutter
+ flutter_mailer 2.1.2
+ flutter_mobx 2.2.0+2
+ flutter_plugin_android_lifecycle 2.0.9 (2.0.17 available)
+ flutter_slidable 2.0.0 (3.0.1 available)
+ flutter_spinkit 5.2.0
+ flutter_test 0.0.0 from sdk flutter
+ flutter_web_plugins 0.0.0 from sdk flutter
+ frontend_server_client 3.2.0
+ get_it 7.6.7
+ glob 2.1.2
+ graphs 2.3.1
+ hex 0.2.0
+ hive 2.2.3
+ hive_flutter 1.1.0
+ hive_generator 1.1.3 (2.0.1 available)
+ http 1.2.0
+ http_multi_server 3.2.1
+ http_parser 4.0.2
+ image 3.3.0 (4.1.6 available)
+ in_app_review 2.0.8
+ in_app_review_platform_interface 2.0.5
+ intl 0.18.1 (0.19.0 available)
+ io 1.0.4
+ js 0.6.7 (0.7.0 available)
+ json_annotation 4.8.1
+ keyboard_actions 4.2.0
+ local_auth 2.1.8
+ local_auth_android 1.0.21 (1.0.36 available)
+ local_auth_ios 1.1.6
+ local_auth_platform_interface 1.0.10
+ local_auth_windows 1.0.10
+ logging 1.2.0
+ lottie 1.4.3 (3.0.0 available)
+ matcher 0.12.16 (0.12.16+1 available)
+ material_color_utilities 0.5.0 (0.8.0 available)
+ meta 1.10.0 (1.12.0 available)
+ mime 1.0.5
+ mobx 2.3.0+1
+ mobx_codegen 2.3.0 (2.6.0+1 available)
+ nested 1.0.0
+ package_config 2.1.0
+ package_info_plus 4.2.0 (5.0.1 available)
+ package_info_plus_platform_interface 2.0.1
+ path 1.8.3 (1.9.0 available)
+ path_drawing 1.0.1
+ path_parsing 1.0.1
+ path_provider 2.0.15 (2.1.2 available)
+ path_provider_android 2.0.24 (2.2.2 available)
+ path_provider_foundation 2.3.2
+ path_provider_linux 2.2.1
+ path_provider_platform_interface 2.1.2
+ path_provider_windows 2.2.1
+ pedantic 1.11.1 (discontinued replaced by lints)
+ permission_handler 10.4.5 (11.2.0 available)
+ permission_handler_android 10.3.6 (12.0.3 available)
+ permission_handler_apple 9.1.4 (9.3.0 available)
+ permission_handler_platform_interface 3.12.0 (4.1.0 available)
+ permission_handler_windows 0.1.3 (0.2.1 available)
+ petitparser 6.0.2
+ platform 3.1.4
+ platform_device_id 1.0.1
+ platform_device_id_linux 1.0.0
+ platform_device_id_macos 1.0.0
+ platform_device_id_platform_interface 1.0.0
+ platform_device_id_web 1.0.0
+ platform_device_id_windows 1.0.0
+ plugin_platform_interface 2.1.8
+ pointycastle 3.7.4
+ pool 1.5.1
+ protobuf 3.1.0
+ provider 6.1.1
+ pub_semver 2.1.4
+ pubspec_parse 1.2.3
+ qr 3.0.1
+ qr_flutter 4.0.1 from git https://github.com/cake-tech/qr.flutter.git at dced28
+ rxdart 0.27.7
+ sensitive_clipboard 1.0.0
+ share_plus 4.5.3 (7.2.2 available)
+ share_plus_linux 3.0.1
+ share_plus_macos 3.0.1
+ share_plus_platform_interface 3.3.1
+ share_plus_web 3.1.0
+ share_plus_windows 3.0.1 (4.0.0 available)
+ shared_preferences 2.0.20 (2.2.2 available)
+ shared_preferences_android 2.0.17 (2.2.1 available)
+ shared_preferences_foundation 2.3.5
+ shared_preferences_linux 2.3.2
+ shared_preferences_platform_interface 2.3.2
+ shared_preferences_web 2.2.2
+ shared_preferences_windows 2.3.2
+ shelf 1.4.1
+ shelf_web_socket 1.0.4
+ sky_engine 0.0.99 from sdk flutter
+ smooth_page_indicator 1.1.0
+ source_gen 1.2.6 (1.5.0 available)
+ source_helper 1.3.3 (1.3.4 available)
+ source_span 1.10.0
+ sprintf 7.0.0
+ stack_trace 1.11.1
+ stream_channel 2.1.2
+ stream_transform 2.1.0
+ string_scanner 1.2.0
+ term_glyph 1.2.1
+ test_api 0.6.1 (0.7.0 available)
+ timing 1.0.1
+ translator 1.0.0 from git https://github.com/cake-tech/google-translator.git at b36571
+ tuple 2.0.2
+ typed_data 1.3.2
+ uni_links 0.5.1
+ uni_links_platform_interface 1.0.0
+ uni_links_web 0.1.0
+ unorm_dart 0.2.0 (0.3.0 available)
+ url_launcher 6.1.14 (6.2.4 available)
+ url_launcher_android 6.0.24 (6.2.2 available)
+ url_launcher_ios 6.2.4
+ url_launcher_linux 3.1.1
+ url_launcher_macos 3.1.0
+ url_launcher_platform_interface 2.3.1
+ url_launcher_web 2.2.3
+ url_launcher_windows 3.1.1
+ uuid 4.3.3
+ vector_math 2.1.4
+ wakelock_plus 1.1.4
+ wakelock_plus_platform_interface 1.1.0
+ watcher 1.1.0
+ web 0.3.0 (0.4.2 available)
+ web_socket_channel 2.4.0 (2.4.3 available)
+ win32 4.1.4 (5.2.0 available)
+ workmanager 0.5.2
+ xdg_directories 1.0.4
+ xml 6.5.0
+ yaml 3.1.2
Changed 194 dependencies!
2 packages are discontinued.
48 packages have newer versions incompatible with dependency constraints.
Try `flutter pub outdated` for more information.
This app is using a deprecated version of the Android embedding.
To avoid unexpected runtime failures, or future build failures, try to migrate this app to the V2 embedding.
Take a look at the docs for migrating an app:
https://github.com/flutter/flutter/wiki/Upgrading-pre-1.12-Android-projects
The plugin `device_display_brightness` requires your app to be migrated to the Android embedding v2. Follow the steps
on the migration doc above and re-run this command.
Deprecated. Use `dart run` instead.
Building package executable...
Built cake_wallet:configure.
Resolving dependencies... (1.9s)
  _fe_analyzer_shared 47.0.0 (67.0.0 available)
  analyzer 4.7.0 (6.4.1 available)
  animate_do 2.1.0 (3.3.3 available)
  build_resolvers 2.0.10 (2.4.2 available)
  build_runner_core 7.2.10 (7.3.0 available)
  cli_util 0.3.5 (0.4.1 available)
  connectivity 3.0.6 (discontinued)
+ cw_bitcoin 0.0.1 from path cw_bitcoin
+ cw_core 0.0.1 from path cw_core
+ cw_ethereum 0.0.1 from path cw_ethereum
+ cw_monero 0.0.1 from path cw_monero
+ cw_shared_external 0.0.1 from path cw_shared_external
  dart_style 2.2.4 (2.3.4 available)
  device_info_plus 8.1.0 (9.1.2 available)
  dio 4.0.6 (5.4.0 available)
+ ed25519_hd_key 2.2.1
+ eip1559 0.6.2
+ eip55 1.0.2
+ erc20 1.0.1
  ffi 2.1.0 (2.1.2 available)
  file 6.1.4 (7.0.0 available)
  file_picker 5.3.1 (6.1.1 available)
  flutter_inappwebview 5.8.0 (6.0.0 available)
  flutter_launcher_icons 0.11.0 (0.13.1 available)
  flutter_plugin_android_lifecycle 2.0.9 (2.0.17 available)
  flutter_slidable 2.0.0 (3.0.1 available)
  hive_generator 1.1.3 (2.0.1 available)
  image 3.3.0 (4.1.6 available)
  intl 0.18.1 (0.19.0 available)
  js 0.6.7 (0.7.0 available)
+ json_rpc_2 3.0.2
  local_auth_android 1.0.21 (1.0.36 available)
  lottie 1.4.3 (3.0.0 available)
  matcher 0.12.16 (0.12.16+1 available)
  material_color_utilities 0.5.0 (0.8.0 available)
  meta 1.10.0 (1.12.0 available)
  mobx_codegen 2.3.0 (2.6.0+1 available)
  package_info_plus 4.2.0 (5.0.1 available)
  path 1.8.3 (1.9.0 available)
  path_provider 2.0.15 (2.1.2 available)
  path_provider_android 2.0.24 (2.2.2 available)
  pedantic 1.11.1 (discontinued replaced by lints)
  permission_handler 10.4.5 (11.2.0 available)
  permission_handler_android 10.3.6 (12.0.3 available)
  permission_handler_apple 9.1.4 (9.3.0 available)
  permission_handler_platform_interface 3.12.0 (4.1.0 available)
  permission_handler_windows 0.1.3 (0.2.1 available)
+ pinenacl 0.5.1
+ sec 1.1.0
  share_plus 4.5.3 (7.2.2 available)
  share_plus_windows 3.0.1 (4.0.0 available)
  shared_preferences 2.0.20 (2.2.2 available)
  shared_preferences_android 2.0.17 (2.2.1 available)
  source_gen 1.2.6 (1.5.0 available)
  source_helper 1.3.3 (1.3.4 available)
  test_api 0.6.1 (0.7.0 available)
  unorm_dart 0.2.0 (0.3.0 available)
  url_launcher 6.1.14 (6.2.4 available)
  url_launcher_android 6.0.24 (6.2.2 available)
+ wallet 0.0.13
  web 0.3.0 (0.4.2 available)
+ web3dart 2.7.2
  web_socket_channel 2.4.0 (2.4.3 available)
  win32 4.1.4 (5.2.0 available)
Changed 14 dependencies!
2 packages are discontinued.
48 packages have newer versions incompatible with dependency constraints.
Try `flutter pub outdated` for more information.
This app is using a deprecated version of the Android embedding.
To avoid unexpected runtime failures, or future build failures, try to migrate this app to the V2 embedding.
Take a look at the docs for migrating an app:
https://github.com/flutter/flutter/wiki/Upgrading-pre-1.12-Android-projects
The plugin `cw_shared_external` requires your app to be migrated to the Android embedding v2. Follow the steps on the
migration doc above and re-run this command.
```

I thinks the migration needs to be done in the source code.