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Common questions #17

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suyulin opened this issue Jul 22, 2021 · 35 comments
Open

Common questions #17

suyulin opened this issue Jul 22, 2021 · 35 comments
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good first issue Good for newcomers question Further information is requested

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@suyulin
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suyulin commented Jul 22, 2021

hi,
image
image

@HidenoriMatsubayashi
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HidenoriMatsubayashi commented Jul 26, 2021

Could you inform me of your environment (like OS, cmake and clang version)? It seems the version of clang is a little bit old.

@Nagendra-Bankupalli
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Nagendra-Bankupalli commented Jul 28, 2021

@HidenoriMatsubayashi
got similar error while cross building flutter test application
Downloading elinux-x64-release tools... 1,608ms

💪 Building with sound null safety 💪

Building an eLinux application with wayland backend in release mode for arm64 target... 17.4s
Failed to cmake:
-- Toolchain file defaulted to '/opt/abc-wayland/sysroots/x86_64-abcsdk-linux/usr/share/cmake/OEToolchainConfig.cmake'
-- The CXX compiler identification is Clang 10.0.1
-- Check for working CXX compiler: /opt/ABC-wayland/sysroots/x86_64-abcsdk-linux/usr/bin/clang++
-- Check for working CXX compiler: /opt/ABC-wayland/sysroots/x86_64-abcsdk-linux/usr/bin/clang++ -- broken
-- Configuring incomplete, errors occurred!
See also "/test_app/build/elinux/arm64/release/CMakeFiles/CMakeOutput.log".
See also "/test_app/build/elinux/arm64/release/CMakeFiles/CMakeError.log".

CMake Error at /opt/abc-wayland/sysroots/x86_64-abcsdk-linux/usr/share/cmake-3.16/Modules/CMakeTestCXXCompiler.cmake:53 (message):

could you help me in fixing it?

my flutter-elinux doctor says
Doctor summary (to see all details, run flutter doctor -v):
[✓] Flutter (Channel unknown, 2.4.0-4.2.pre, on Ubuntu 20.04.1 LTS 5.8.0-63-generic, locale en_IN)
[✓] eLinux toolchain - develop for embedded Linux devices
[!] Android toolchain - develop for Android devices (Android SDK version 30.0.3)
✗ cmdline-tools component is missing
Run path/to/sdkmanager --install "cmdline-tools;latest"
See https://developer.android.com/studio/command-line for more details.
✗ Android license status unknown.
Run flutter doctor --android-licenses to accept the SDK licenses.
See https://flutter.dev/docs/get-started/install/linux#android-setup for more details.
[✓] Chrome - develop for the web
[✓] Linux toolchain - develop for Linux desktop
[✓] Android Studio (version 4.1)
[✓] Android Studio
[✓] Connected device (4 available)

regsrds
Nagendra

@HidenoriMatsubayashi
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@Nagendra-Bankupalli
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@HidenoriMatsubayashi ,
Yes , the Link suggests to use tool-chain (sdk) specific to the target . I am using sdk built using yocto for my target , which includes flutter engine as well. the same tool chain worked flawlessly to build flutter-embedder "flutter-client" .

@HidenoriMatsubayashi
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HidenoriMatsubayashi commented Jul 29, 2021

I understood. Is it possible to try the build by specifying only your sysroot without using the Yocto SDK's toolchain? It means
using the host toolchain with the target sysroot.

$ flutter-elinux build elinux --target-arch=arm64 --target-sysroot=<absolute_path_to_yocto_sdk_sysroot>

@Nagendra-Bankupalli
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@HidenoriMatsubayashi , below is the error

Building an eLinux application with wayland backend in release mode for arm64 target... 17.5s
Failed to cmake:
-- The CXX compiler identification is Clang 10.0.0
-- Check for working CXX compiler: /usr/bin/clang++
-- Check for working CXX compiler: /usr/bin/clang++ -- broken
-- Configuring incomplete, errors occurred!
See also "/home//test_app/build/elinux/arm64/release/CMakeFiles/CMakeOutput.log".
See also "/home//test_app/build/elinux/arm64/release/CMakeFiles/CMakeError.log".

CMake Error at /usr/share/cmake-3.16/Modules/CMakeTestCXXCompiler.cmake:53 (message):
The C++ compiler

"/usr/bin/clang++"

is not able to compile a simple test program.

@HidenoriMatsubayashi
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Thanks. Can you pass self-build?

$ flutter-elinux build elinux

@Nagendra-Bankupalli
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It works for x64 target (weston) and I can even run profile (dev tool) as well.

@HidenoriMatsubayashi
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Did you install required tools to cross-build?

$ sudo apt install gcc-aarch64-linux-gnu g++-aarch64-linux-gnu
$ sudo apt install libstdc++-8-dev-arm64-cross

@Nagendra-Bankupalli
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No, I thought target tool chain would be sufficient , will try and let you know

@HidenoriMatsubayashi
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Yes, we need these tools to cross-build when we use host's toolchain (clang/llvm).

@Nagendra-Bankupalli
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Nagendra-Bankupalli commented Jul 29, 2021

@HidenoriMatsubayashi , thank you for the inputs,
now the build is success, and able to run the app on target using (from host)
flutter-elinux run -d My-device

on profiling, I have updated .flutter_custom_devices.json with all required info about my target
but flutter-elinux attach says (running on another host window)
"Waiting for a connection from Flutter on eLinux..."

@HidenoriMatsubayashi
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Sounds good.

$ flutter-elinux run -d My-device is debug-mode (not profile mode), and currently, custom-devices support only debug mode. If you want to use the observatory, write forwardPort and forwardPortSuccessRegex in .flutter_custom_devices.json. When we attach debugger on remote devices, we need to port-forwarding.

      "runDebug": [
        "ssh", "[email protected]", "/tmp/${appName}/${appName} -b ."
      ],
      "forwardPort": [
        "ssh", "-o", "ExitOnForwardFailure=yes",
        "-L", "127.0.0.1:${hostPort}:127.0.0.1:${devicePort}", "[email protected]"
      ],
      "forwardPortSuccessRegex": "Linux"

@Nagendra-Bankupalli
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Nagendra-Bankupalli commented Jul 29, 2021

Yes, forwardPort and forwardPortSuccessRegex have been added to my flutter_custom_devices.json
According to
https://github.com/sony/flutter-elinux/wiki/Remote-target-devices

below commands can be used to install and uninstall app from the target
flutter-elinux install -d my-device ,flutter-elinux uninstall -d my-device
in the above commands uninstall and forwardPort does not work for me throwing unknown commands ,

Tried running app on target and shows below line, does this means we can observe it on host, if portForward is success, if yes please let me know how to do it? am I missing something ?
flutter: Observatory listening on http://127.0.0.1:41285/Q3dpAt3Ta3g=/

@HidenoriMatsubayashi
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HidenoriMatsubayashi commented Jul 29, 2021

Could you inform me of your trying command and error messages? forwardPort and forwardPortSuccessRegex are used only when you do $ flutter-elinux run -d My-device.

@Nagendra-Bankupalli
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with below commands I could get observatory data on host chrome from target (my-device)

target :
root@my-device:/tmp/test_app# ./test_app -b . flutter: Observatory listening on http://127.0.0.1:34549/CA1Zk5rr-LQ=/
host
ssh -o ExitOnForwardFailure=yes -L 127.0.0.1:34549:127.0.0.1:34549 root@ip-my-device

open chrome on host "http://127.0.0.1:34549/CA1Zk5rr-LQ=/"

Screenshot from 2021-07-29 13-28-26

@HidenoriMatsubayashi
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Yes, $ flutter-elinux run -d My-device does the same thing automatically as above.

Internal steps:

  1. [uninstall comamnd] uninstall your old flutter app from My-device
  2. [install command] install your flutter app to My-device
  3. [runDebug command] run your flutter app on My-device
  4. [forwardPort command] portforwarding
    You will get log message like "http://127.0.0.1:34549/CA1Zk5rr-LQ=/" and you can open it on host web-browser

@Nagendra-Bankupalli
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Nagendra-Bankupalli commented Jul 29, 2021

Yes,I expected the same, but the command did not provide any log (app runs on target successfully), so I tried it manually , it worked
between , this is not actual profile data right ? is profile mode supported in future ?

host $  flutter-elinux -v run -d my-device
Launching lib/main.dart on eLinux in debug mode...
Uninstall test_app from my-device.
Uninstallation Success
Install test_app (build/elinux/arm64/debug/bundle) to my-device
Installation Success
Launch test_app.name on my-device

`

@HidenoriMatsubayashi
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In my environment, it works fine.

$ flutter-elinux run -d raspberry-pi4
Launching lib/main.dart on eLinux in debug mode...
Uninstall sample from raspberry-pi4.
[email protected]'s password: 
Uninstallation Success
Install sample (build/elinux/arm64/debug/bundle) to raspberry-pi4
[email protected]'s password: 
Installation Success
Launch sample.name on raspberry-pi4
[email protected]'s password: 
[email protected]'s password: 
Syncing files to device eLinux...                                  202ms

Flutter run key commands.
r Hot reload. 🔥🔥🔥
R Hot restart.
h List all available interactive commands.
d Detach (terminate "flutter run" but leave application running).
c Clear the screen
q Quit (terminate the application on the device).

💪 Running with sound null safety 💪

An Observatory debugger and profiler on eLinux is available at: http://127.0.0.1:43237/xd6sW5hdEoE=/
Activating Dart DevTools...                                      1,830ms
The Flutter DevTools debugger and profiler on eLinux is available at:
http://127.0.0.1:9100?uri=http://127.0.0.1:43237/xd6sW5hdEoE=/

I couldn't reproduce this issue. So, could you do debugging by adding log messages to around https://github.com/sony/flutter-elinux/blob/main/lib/elinux_device.dart#L141?

between , this is not actual profile data right ? is profile mode supported in future ?

Why do you want to use profile mode? I think debug mode is well enough. The difference between debug and profile mode is that debug mode is debugging + profiling, whereas profile mode is profiling only.

@HidenoriMatsubayashi
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is profile mode supported in future ?

I added it just now. #34

@Nagendra-Bankupalli
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@HidenoriMatsubayashi ,

  1. Thank you for updating profile mode
  2. Yes, I could get timeline info in debug mode, I observed that the profile mode is more sophisticated than debug mode, let me check again.
  3. Regarding "flutter-elinux run" command, Could be my host settings? I will get back with more details later as it works with manual commands for me now

@HidenoriMatsubayashi HidenoriMatsubayashi added the question Further information is requested label Aug 2, 2021
@HidenoriMatsubayashi HidenoriMatsubayashi changed the title Build error Common questions Aug 2, 2021
@HidenoriMatsubayashi HidenoriMatsubayashi pinned this issue Aug 2, 2021
@HidenoriMatsubayashi
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@Nagendra-Bankupalli

Yes,I expected the same, but the command did not provide any log (app runs on target successfully), so I tried it manually , it worked

I can reproduce the same issue using i.mx8m device, but if I use raspberry-pi4, it's no problem. So, it looks depending on the target device or environment.

@Nagendra-Bankupalli
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Nagendra-Bankupalli commented Aug 19, 2021

Thanks for updating, Yes mine is similar platform, the below line of code is blocked.
(flutter-elinux/lib/elinux_device.dart +177)
final Uri observatoryUri = await discovery.uri;

below line could be issue? (protocol_discovery.dart +152)
final int actualHostPort = await portForwarder.forward(actualDevicePort, hostPort: hostPort);

@Nagendra-Bankupalli
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@HidenoriMatsubayashi , Have you tried flutter-gallery app on embedded target ?

@HidenoriMatsubayashi
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Yes, I have. It worked fine.

@Nagendra-Bankupalli
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Nagendra-Bankupalli commented Aug 25, 2021

@HidenoriMatsubayashi ,
thanks for the update, its not working at my end not sure what is the issue, the application loads but no widgets visible , its white , except the flutter animation. any issues with GPU support ?, or how do we know that app is GPU driven? any inputs on this would be helpful.

@HidenoriMatsubayashi
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Proverbially, I guess you haven't set LANG environment var. Could you try the following on your target device?

$ export LANG=en_US.UTF-8

@Nagendra-Bankupalli
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@HidenoriMatsubayashi , thank you it works.

@Rustam-Askerov
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Hi,I created a flutter custom device, but when I entered the command "flutter-elinux devices" I found that instead of one device, two sailfish-devices are displayed. Because of this, when I enter the command "flutter-elinux run -d sailfish-device", debugging does not work correctly for me. What could this
Снимок экрана от 2021-11-16 15-40-22
Снимок экрана от 2021-11-16 15-52-23
Снимок экрана от 2021-11-16 15-48-35

@HidenoriMatsubayashi
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@Rustam-Askerov
Your target device (sailfish-device) looks localhost, it means you want to install your host machine instead of remote custom devieces, right?

@Rustam-Askerov
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I run virtualbox on my pc and as a custom device I use a virtual machine on which sailfish os is installed. In the instructions for the Sailfish SDK, it says ssh
the connection to the virual box is done with the command "ssh -p 2222 -i ~ / SailfishOS / vmshare / ssh / private_keys / sdk root @ localhost". So I use localhost.
Снимок экрана от 2021-11-17 13-07-51

@Rustam-Askerov
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Also I tried to build the app from x64 host for arm64 using cross compilation but when compilation reaches 100% the error appears:
"/usr/bin/aarch64-linux-gnu-ld: warning: libxkbcommon.so.0, needed for
/home/raskerov/test_app/elinux/flutter/ephemeral/libflutter_elinux_wayland.so, not found
(try using -rpath or -rpath-link)"

flutter-elinux build elinux --debug --target-arch=arm64 --target-sysroot=/opt/poky/2.1/sysroots/aarch64-poky-linux --system-include-directories=/usr/aarch64-linux-gnu/include/c++/10/aarch64-linux-gnu

💪 Building with sound null safety 💪

Building an eLinux application with wayland backend in debug mode for arm64 target... 12,1s
Failed to cmake build:
Scanning dependencies of target flutter_assemble
[ 0%] Built target flutter_assemble
Scanning dependencies of target flutter_wrapper_app
[ 7%] Building CXX object
flutter/CMakeFiles/flutter_wrapper_app.dir/ephemeral/cpp_client_wrapper/core_implementations.cc.o
[ 15%] Building CXX object
flutter/CMakeFiles/flutter_wrapper_app.dir/ephemeral/cpp_client_wrapper/standard_codec.cc.o
[ 23%] Building CXX object
flutter/CMakeFiles/flutter_wrapper_app.dir/ephemeral/cpp_client_wrapper/flutter_engine.cc.o
[ 30%] Building CXX object
flutter/CMakeFiles/flutter_wrapper_app.dir/ephemeral/cpp_client_wrapper/flutter_view_controller.cc.o
[ 38%] Linking CXX static library libflutter_wrapper_app.a
[ 38%] Built target flutter_wrapper_app
Scanning dependencies of target flutter_wrapper_plugin
[ 46%] Building CXX object
flutter/CMakeFiles/flutter_wrapper_plugin.dir/ephemeral/cpp_client_wrapper/core_implementations.cc.o
[ 53%] Building CXX object
flutter/CMakeFiles/flutter_wrapper_plugin.dir/ephemeral/cpp_client_wrapper/standard_codec.cc.o
[ 61%] Building CXX object
flutter/CMakeFiles/flutter_wrapper_plugin.dir/ephemeral/cpp_client_wrapper/plugin_registrar.cc.o
[ 69%] Linking CXX static library libflutter_wrapper_plugin.a
[ 69%] Built target flutter_wrapper_plugin
Scanning dependencies of target test_app
[ 76%] Building CXX object runner/CMakeFiles/test_app.dir/flutter_window.cc.o
[ 84%] Building CXX object runner/CMakeFiles/test_app.dir/main.cc.o
[ 92%] Building CXX object
runner/CMakeFiles/test_app.dir/__/flutter/generated_plugin_registrant.cc.o
[100%] Linking CXX executable test_app

/usr/bin/aarch64-linux-gnu-ld: warning: libxkbcommon.so.0, needed for
/home/raskerov/test_app/elinux/flutter/ephemeral/libflutter_elinux_wayland.so, not found
(try using -rpath or -rpath-link)

/usr/bin/aarch64-linux-gnu-ld: /opt/poky/2.1/sysroots/aarch64-poky-linux/usr/lib/libEGL.so.1:
.dynsym local symbol at index 3 (>= sh_info of 3)
/usr/bin/aarch64-linux-gnu-ld: /opt/poky/2.1/sysroots/aarch64-poky-linux/usr/lib/libEGL.so.1:
.dynsym local symbol at index 4 (>= sh_info of 3)
/usr/bin/aarch64-linux-gnu-ld: /opt/poky/2.1/sysroots/aarch64-poky-linux/usr/lib/libEGL.so.1:
.dynsym local symbol at index 5 (>= sh_info of 3)
/usr/bin/aarch64-linux-gnu-ld: /opt/poky/2.1/sysroots/aarch64-poky-linux/usr/lib/libEGL.so.1:
.dynsym local symbol at index 6 (>= sh_info of 3)
/usr/bin/aarch64-linux-gnu-ld: /opt/poky/2.1/sysroots/aarch64-poky-linux/usr/lib/libEGL.so.1:
.dynsym local symbol at index 7 (>= sh_info of 3)
/usr/bin/aarch64-linux-gnu-ld: /opt/poky/2.1/sysroots/aarch64-poky-linux/usr/lib/libEGL.so.1:
.dynsym local symbol at index 8 (>= sh_info of 3)
/usr/bin/aarch64-linux-gnu-ld: /opt/poky/2.1/sysroots/aarch64-poky-linux/usr/lib/libEGL.so.1:
.dynsym local symbol at index 9 (>= sh_info of 3)
/usr/bin/aarch64-linux-gnu-ld: /opt/poky/2.1/sysroots/aarch64-poky-linux/usr/lib/libgbm.so.1:
.dynsym local symbol at index 3 (>= sh_info of 3)
/usr/bin/aarch64-linux-gnu-ld: /opt/poky/2.1/sysroots/aarch64-poky-linux/usr/lib/libgbm.so.1:
.dynsym local symbol at index 4 (>= sh_info of 3)
/usr/bin/aarch64-linux-gnu-ld: /opt/poky/2.1/sysroots/aarch64-poky-linux/usr/lib/libgbm.so.1:
.dynsym local symbol at index 5 (>= sh_info of 3)
/usr/bin/aarch64-linux-gnu-ld: /opt/poky/2.1/sysroots/aarch64-poky-linux/usr/lib/libgbm.so.1:
.dynsym local symbol at index 6 (>= sh_info of 3)
/usr/bin/aarch64-linux-gnu-ld: /opt/poky/2.1/sysroots/aarch64-poky-linux/usr/lib/libgbm.so.1:
.dynsym local symbol at index 7 (>= sh_info of 3)
/usr/bin/aarch64-linux-gnu-ld: /opt/poky/2.1/sysroots/aarch64-poky-linux/usr/lib/libgbm.so.1:
.dynsym local symbol at index 8 (>= sh_info of 3)
/usr/bin/aarch64-linux-gnu-ld: /opt/poky/2.1/sysroots/aarch64-poky-linux/usr/lib/libgbm.so.1:
.dynsym local symbol at index 9 (>= sh_info of 3)
/usr/bin/aarch64-linux-gnu-ld:
/home/raskerov/test_app/elinux/flutter/ephemeral/libflutter_elinux_wayland.so: undefined
link to «xkb_state_new@V_0.5.0»
/usr/bin/aarch64-linux-gnu-ld:
/home/raskerov/test_app/elinux/flutter/ephemeral/libflutter_elinux_wayland.so: undefined
link to «xkb_keymap_new_from_string@V_0.5.0»
/usr/bin/aarch64-linux-gnu-ld:
/home/raskerov/test_app/elinux/flutter/ephemeral/libflutter_elinux_wayland.so: undefined
link to «xkb_context_unref@V_0.5.0»
/usr/bin/aarch64-linux-gnu-ld: /opt/poky/2.1/sysroots/aarch64-poky-linux/lib/libpthread.so.0:
undefined link to «__libc_dl_error_tsd@GLIBC_PRIVATE»
/usr/bin/aarch64-linux-gnu-ld: /opt/poky/2.1/sysroots/aarch64-poky-linux/lib/libpthread.so.0:
undefined link to «__libc_vfork@GLIBC_PRIVATE»
/usr/bin/aarch64-linux-gnu-ld:
/home/raskerov/test_app/elinux/flutter/ephemeral/libflutter_elinux_wayland.so: undefined
link to «xkb_state_serialize_mods@V_0.5.0»
/usr/bin/aarch64-linux-gnu-ld:
/home/raskerov/test_app/elinux/flutter/ephemeral/libflutter_elinux_wayland.so: undefined
link to «xkb_state_unref@V_0.5.0»
/usr/bin/aarch64-linux-gnu-ld:
/home/raskerov/test_app/elinux/flutter/ephemeral/libflutter_elinux_wayland.so: undefined
link to «xkb_state_update_mask@V_0.5.0»
/usr/bin/aarch64-linux-gnu-ld:
/home/raskerov/test_app/elinux/flutter/ephemeral/libflutter_elinux_wayland.so: undefined
link to «xkb_keymap_unref@V_0.5.0»
/usr/bin/aarch64-linux-gnu-ld:
/home/raskerov/test_app/elinux/flutter/ephemeral/libflutter_elinux_wayland.so: undefined
link to «xkb_keysym_to_utf32@V_0.5.0»
/usr/bin/aarch64-linux-gnu-ld:
/home/raskerov/test_app/elinux/flutter/ephemeral/libflutter_elinux_wayland.so: undefined
link to «xkb_keymap_new_from_names@V_0.5.0»
/usr/bin/aarch64-linux-gnu-ld:
/home/raskerov/test_app/elinux/flutter/ephemeral/libflutter_elinux_wayland.so: undefined
link to «wl_proxy_marshal_constructor_versioned»
/usr/bin/aarch64-linux-gnu-ld:
/home/raskerov/test_app/elinux/flutter/ephemeral/libflutter_elinux_wayland.so: undefined
link to «xkb_keymap_mod_get_index@V_0.5.0»
/usr/bin/aarch64-linux-gnu-ld:
/home/raskerov/test_app/elinux/flutter/ephemeral/libflutter_elinux_wayland.so: undefined
link to «xkb_state_key_get_one_sym@V_0.5.0»
/usr/bin/aarch64-linux-gnu-ld:
/home/raskerov/test_app/elinux/flutter/ephemeral/libflutter_elinux_wayland.so: undefined
link to «xkb_context_new@V_0.5.0»
/usr/bin/aarch64-linux-gnu-ld:
/home/raskerov/test_app/elinux/flutter/ephemeral/libflutter_elinux_wayland.so: undefined
link to «xkb_state_update_key@V_0.5.0»
clang: error: linker command failed with exit code 1 (use -v to see invocation)
gmake[2]: *** [runner/CMakeFiles/test_app.dir/build.make:136: runner/test_app] Error 1
gmake[1]: *** [CMakeFiles/Makefile2:219: runner/CMakeFiles/test_app.dir/all] Error 2
gmake: *** [Makefile:149: all] Errors 2

@Rustam-Askerov
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But libxkbcommon0 library is installed:
Снимок экрана от 2021-11-23 15-25-59

@suyulin
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suyulin commented Dec 4, 2021

hi,
on host device:

flutter-elinux run -d mixpad-x
Launching lib/main.dart on eLinux in debug mode...
Uninstall hello_remote_device from mixpad-x.
Uninstallation Success
Install hello_remote_device (build/elinux/arm64/debug/bundle) to mixpad-x
Installation Success
Launch hello_remote_device.name on mixpad-x

no flutter hot load
on target device:

./video_player_example -b ./
arm_release_ver of this libmali is 'g2p0-01eac0', rk_so_ver is '3'.embedder.cc (1933): 'FlutterEnginePostDartObject' returned 'kInvalidArguments'. Engine not running.
[ERROR:engine/src/flutter/runtime/dart_vm_data.cc(18)] VM snapshot invalid and could not be inferred from settings.
[ERROR:engine/src/flutter/runtime/dart_vm.cc(256)] Could not setup VM data to bootstrap the VM from.
[ERROR:engine/src/flutter/runtime/dart_vm_lifecycle.cc(84)] Could not create Dart VM instance.
[FATAL:engine/src/flutter/shell/common/shell.cc(297)] Check failed: vm. Must be able to initialize the VM.

@HidenoriMatsubayashi HidenoriMatsubayashi added the good first issue Good for newcomers label Aug 14, 2023
@nguyenlkdn
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Activating Dart DevTools...                                      1,830ms
The Flutter DevTools debugger and profiler on eLinux is available at:
http://127.0.0.1:9100?uri=http://127.0.0.1:43237/xd6sW5hdEoE=/

How can we setup for activating Dart DevTools on your RPi board?

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