<video_player> Compilation error

[JGNS]

Sorry to bother you again, I couldn't compile when integrating the video playback function. Here are some instructions for my project:

1. Add dependencies: video_player: ^2.8.2 video_player_elinux: git: url: https://github.com/sony/flutter-elinux-plugins.git path: packages/video_player Ref: main
2. Before adding dependencies, I can compile the product normally and execute it on the embedded device. The command used is: flutter-elinux build elinux --target-backend-type=x11 --target-arch=arm64, and I am in Added set(CMAKE_CXX_COMPILER aarch64-linux-gnu-g++-10) to elinux/CmakeLists.txt.
3. I have asked similar questions before(#93 ), but I am a newbie, what should I do?too difficult.

[JGNS]

if i add set(CMAKE_CXX_COMPILER /usr/bin/clang) to CMakeLists.txt,The following error will occur during compilation（also use flutter-elinux build elinux --target-backend-type=x11 --target-arch=arm64）：

Failed to cmake build: Scanning dependencies of target flutter_assemble [ 0%] Built target flutter_assemble Scanning dependencies of target flutter_wrapper_plugin Scanning dependencies of target flutter_wrapper_app [ 7%] Building CXX object flutter/CMakeFiles/flutter_wrapper_plugin.dir/ephemeral/cpp_client_wrapper/core_implementations.cc.o [ 15%] Building CXX object flutter/CMakeFiles/flutter_wrapper_plugin.dir/ephemeral/cpp_client_wrapper/standard_codec.cc.o [ 23%] Building CXX object flutter/CMakeFiles/flutter_wrapper_plugin.dir/ephemeral/cpp_client_wrapper/plugin_registrar.cc.o [ 30%] Building CXX object flutter/CMakeFiles/flutter_wrapper_app.dir/ephemeral/cpp_client_wrapper/standard_codec.cc.o [ 38%] Building CXX object flutter/CMakeFiles/flutter_wrapper_app.dir/ephemeral/cpp_client_wrapper/core_implementations.cc.o [ 46%] Building CXX object flutter/CMakeFiles/flutter_wrapper_app.dir/ephemeral/cpp_client_wrapper/flutter_view_controller.cc.o [ 53%] Building CXX object flutter/CMakeFiles/flutter_wrapper_app.dir/ephemeral/cpp_client_wrapper/flutter_engine.cc.o

/home/yone/Desktop/demo/elinux/flutter/ephemeral/cpp_client_wrapper/core_implementations.cc:16:10: fatal error: 'cassert' file not found

include

     ^~~~~~~~~

1 error generated. make[2]: [flutter/CMakeFiles/flutter_wrapper_plugin.dir/build.make:63：flutter/CMakeFiles/flutter_wrapper_plugin.dir/ephemeral/cpp_client_wrapper/core_implementations.cc.o] 错误 1 make[2]: 正在等待未完成的任务.... /home/yone/Desktop/demo/elinux/flutter/ephemeral/cpp_client_wrapper/standard_codec.cc:10:10: fatal error: 'cassert' file not found

include

     ^~~~~~~~~

1 error generated. make[2]: *** [flutter/CMakeFiles/flutter_wrapper_plugin.dir/build.make:76：flutter/CMakeFiles/flutter_wrapper_plugin.dir/ephemeral/cpp_client_wrapper/standard_codec.cc.o] 错误 1 In file included from /home/yone/Desktop/demo/elinux/flutter/ephemeral/cpp_client_wrapper/plugin_registrar.cc:5: /home/yone/Desktop/demo/elinux/flutter/ephemeral/cpp_client_wrapper/include/flutter/plugin_registrar.h:10:10: fatal error: 'map' file not found

include

     ^~~~~

1 error generated. make[2]: [flutter/CMakeFiles/flutter_wrapper_plugin.dir/build.make:89：flutter/CMakeFiles/flutter_wrapper_plugin.dir/ephemeral/cpp_client_wrapper/plugin_registrar.cc.o] 错误 1 make[1]: [CMakeFiles/Makefile2:172：flutter/CMakeFiles/flutter_wrapper_plugin.dir/all] 错误 2 make[1]: *** 正在等待未完成的任务.... /home/yone/Desktop/demo/elinux/flutter/ephemeral/cpp_client_wrapper/core_implementations.cc:16:10: fatal error: 'cassert' file not found

include

     ^~~~~~~~~

/home/yone/Desktop/demo/elinux/flutter/ephemeral/cpp_client_wrapper/standard_codec.cc:10:10: fatal error: 'cassert' file not found

include

     ^~~~~~~~~

1 error generated. 1 error generated. make[2]: [flutter/CMakeFiles/flutter_wrapper_app.dir/build.make:76：flutter/CMakeFiles/flutter_wrapper_app.dir/ephemeral/cpp_client_wrapper/standard_codec.cc.o] 错误 1 make[2]: 正在等待未完成的任务.... make[2]: *** [flutter/CMakeFiles/flutter_wrapper_app.dir/build.make:63：flutter/CMakeFiles/flutter_wrapper_app.dir/ephemeral/cpp_client_wrapper/core_implementations.cc.o] 错误 1 In file included from /home/yone/Desktop/demo/elinux/flutter/ephemeral/cpp_client_wrapper/flutter_view_controller.cc:5: /home/yone/Desktop/demo/elinux/flutter/ephemeral/cpp_client_wrapper/include/flutter/flutter_view_controller.h:10:10: fatal error: 'memory' file not found

include

     ^~~~~~~~

In file included from /home/yone/Desktop/demo/elinux/flutter/ephemeral/cpp_client_wrapper/flutter_engine.cc:5: /home/yone/Desktop/demo/elinux/flutter/ephemeral/cpp_client_wrapper/include/flutter/flutter_engine.h:10:10: fatal error: 'chrono' file not found

include

     ^~~~~~~~

1 error generated. 1 error generated. make[2]: [flutter/CMakeFiles/flutter_wrapper_app.dir/build.make:89：flutter/CMakeFiles/flutter_wrapper_app.dir/ephemeral/cpp_client_wrapper/flutter_engine.cc.o] 错误 1 make[2]: [flutter/CMakeFiles/flutter_wrapper_app.dir/build.make:102：flutter/CMakeFiles/flutter_wrapper_app.dir/ephemeral/cpp_client_wrapper/flutter_view_controller.cc.o] 错误 1 make[1]: [CMakeFiles/Makefile2:145：flutter/CMakeFiles/flutter_wrapper_app.dir/all] 错误 2 make: [Makefile:130：all] 错误 2

what should i do？thanks.

[HidenoriMatsubayashi]

Please try --system-include-directories option.

e.g. --system-include-directories=/usr/aarch64-linux-gnu/include/c++/${version}/aarch64-linux-gnu

[JGNS]

Please try --system-include-directories option.

e.g. --system-include-directories=/usr/aarch64-linux-gnu/include/c++/${version}/aarch64-linux-gnu

thank you for your reply. Here is some specific information:

1. In elinux/CmakeLists.txt I added set(CMAKE_CXX_COMPILER /usr/bin/clang).
2. Execute in the terminal: flutter-elinux build elinux --target-backend-type=x11 --target-arch=arm64 --system-include-directories=/usr/aarch64-linux-gnu/include/c++/10/aarch64-linux-gnu.

The error message is as follows: Failed to cmake build: Scanning dependencies of target flutter_assemble [ 0%] Built target flutter_assemble Scanning dependencies of target flutter_wrapper_plugin Scanning dependencies of target flutter_wrapper_app [ 6%] Building CXX object flutter/CMakeFiles/flutter_wrapper_plugin.dir/ephemeral/cpp_client_wrapper/core_implementations.cc.o [ 12%] Building CXX object flutter/CMakeFiles/flutter_wrapper_plugin.dir/ephemeral/cpp_client_wrapper/standard_codec.cc.o [ 18%] Building CXX object flutter/CMakeFiles/flutter_wrapper_app.dir/ephemeral/cpp_client_wrapper/standard_codec.cc.o [ 25%] Building CXX object flutter/CMakeFiles/flutter_wrapper_app.dir/ephemeral/cpp_client_wrapper/core_implementations.cc.o [ 31%] Building CXX object flutter/CMakeFiles/flutter_wrapper_app.dir/ephemeral/cpp_client_wrapper/flutter_engine.cc.o

/home/yone/Desktop/demo_nolibs/elinux/flutter/ephemeral/cpp_client_wrapper/core_implementations.cc:16:10: fatal error: 'cassert' file not found

include

     ^~~~~~~~~

/home/yone/Desktop/demo_nolibs/elinux/flutter/ephemeral/cpp_client_wrapper/standard_codec.cc/home/yone/Desktop/demo_nolibs/elinux/flutter/ephemeral/cpp_client_wrapper/standard_codec.cc:10:10: fatal error: 'cassert' file not found

include

     ^~~~~~~~~

:10:10: fatal error: 'cassert' file not found

include

     ^~~~~~~~~

/home/yone/Desktop/demo_nolibs/elinux/flutter/ephemeral/cpp_client_wrapper/core_implementations.cc:16:10: fatal error: 'cassert' file not found

include

     ^~~~~~~~~

1 error generated. 1 error generated. 1 error generated. make[2]: [flutter/CMakeFiles/flutter_wrapper_plugin.dir/build.make:63：flutter/CMakeFiles/flutter_wrapper_plugin.dir/ephemeral/cpp_client_wrapper/core_implementations.cc.o] 错误 1 make[2]: 正在等待未完成的任务.... make[2]: [flutter/CMakeFiles/flutter_wrapper_app.dir/build.make:76：flutter/CMakeFiles/flutter_wrapper_app.dir/ephemeral/cpp_client_wrapper/standard_codec.cc.o] 错误 1 make[2]: 正在等待未完成的任务.... make[2]: [flutter/CMakeFiles/flutter_wrapper_plugin.dir/build.make:76：flutter/CMakeFiles/flutter_wrapper_plugin.dir/ephemeral/cpp_client_wrapper/standard_codec.cc.o] 错误 1 make[1]: [CMakeFiles/Makefile2:193：flutter/CMakeFiles/flutter_wrapper_plugin.dir/all] 错误 2 make[1]: 正在等待未完成的任务.... 1 error generated. make[2]: [flutter/CMakeFiles/flutter_wrapper_app.dir/build.make:63：flutter/CMakeFiles/flutter_wrapper_app.dir/ephemeral/cpp_client_wrapper/core_implementations.cc.o] 错误 1 In file included from /home/yone/Desktop/demo_nolibs/elinux/flutter/ephemeral/cpp_client_wrapper/flutter_engine.cc:5: /home/yone/Desktop/demo_nolibs/elinux/flutter/ephemeral/cpp_client_wrapper/include/flutter/flutter_engine.h:10:10: fatal error: 'chrono' file not found

include

     ^~~~~~~~

1 error generated. make[2]: [flutter/CMakeFiles/flutter_wrapper_app.dir/build.make:89：flutter/CMakeFiles/flutter_wrapper_app.dir/ephemeral/cpp_client_wrapper/flutter_engine.cc.o] 错误 1 make[1]: [CMakeFiles/Makefile2:166：flutter/CMakeFiles/flutter_wrapper_app.dir/all] 错误 2 make: *** [Makefile:130：all] 错误 2

but if i execute in root: find -name cassert output is : ... ./usr/aarch64-linux-gnu/include/c++/10/cassert ./usr/aarch64-linux-gnu/include/c++/8/cassert ./usr/lib/llvm-10/include/c++/v1/cassert ./usr/include/c++/9/cassert ./usr/include/c++/10/cassert ...

Thanks for your help.

[HidenoriMatsubayashi]

In elinux/CmakeLists.txt I added set(CMAKE_CXX_COMPILER /usr/bin/clang).

This shouldn't be necessary.

Unfortunately, I have no suggestions, and it's generally challenging to resolve cross-building issues on other systems because we don't share a common build environment

Please see https://github.com/sony/flutter-elinux/wiki/Building-flutter-apps#cross-building-from-x64-to-arm64.

[HidenoriMatsubayashi]

Also, please ensure that target rootfs should be used correctly when you do cross-building.

[JGNS]

In elinux/CmakeLists.txt I added set(CMAKE_CXX_COMPILER /usr/bin/clang).

This shouldn't be necessary.

Unfortunately, I have no suggestions, and it's generally challenging to resolve cross-building issues on other systems because we don't share a common build environment

Please see https://github.com/sony/flutter-elinux/wiki/Building-flutter-apps#cross-building-from-x64-to-arm64.

Very strange thing: the program doesn't compile without adding this （set(CMAKE_EXE_LINKER_FLAGS "-fuse-ld=gold") set(CMAKE_CXX_COMPILER aarch64-linux-gnu-g++-10)）:

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/yone/Desktop/demo/build/elinux/arm64/release/CMakeFiles/CMakeOutput.log". See also "/home/yone/Desktop/demo/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. 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/yone/Desktop/demo/build/elinux/arm64/release/CMakeFiles/CMakeOutput.log". See also "/home/yone/Desktop/demo/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.

If add this, without integrating the video function, it can be compiled and run normally on the target device.