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mavlink / MAVSDK-Java

MAVSDK client for Java.
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React Native Module mavsdk-server #70

Closed nachod30 closed 1 year ago

nachod30 commented 3 years ago

@Katawann Hi, I trying to create a React Native Module with Android Java MAVSDK.

I compiled the main branch binary mavsdk-server with c++_static flag and it gave this error: "_ZNSt6ndk14fs10filesystem8__statusERKNS1_4pathEPNS_10error_codeE"...

I have tried 0.9.1, adding in gradle: implementation group: 'io.mavsdk', name: 'mavsdk-server', version: '0.9.1'

and it gave me an old error: More than one file was found with OS independent path 'lib/x86/libc++_shared.so'. If you are using jniLibs and CMake IMPORTED targets...

Any ideas or suggestions? Thanks.

Originally posted by @nachod30 in https://github.com/mavlink/MAVSDK-Java/issues/65#issuecomment-869668685

JonasVautherin commented 3 years ago

@Katawann I asked @nachod30 to tag you because I believe you were also running mavsdk-java with react native, so maybe you have some insights?

Katawann commented 3 years ago

Yes sure, but actually I had no time to fix this issue on my side...

@nachod30 if you built the library like I did (change the flag to static), maybe try previous version of MAVSDK to start with a working version. Change the build.gradle to get previous version. I'm stuck with the version v0.35.1 of MAVSDK but at least it's working :) l.22 def mavsdk_server_release = "v0.35.1"

l.128 version '0.6.0'

From what I tested, it works to build MAVSDK server statically like this until v0.37.0. From version v0.38.0, it fails as mentioned in the issue #65. Another issue on this subject is opened here https://github.com/mavlink/MAVSDK/issues/1397. @JonasVautherin proposed another way to build the library statically, you might want to try this solution.

Finally, this libc++_shared.so seems to be a known issue in React Native but I just checked and there is still no fix for that https://github.com/facebook/react-native/issues/29377

Let me know if you succeed to build with previous version !

nachod30 commented 3 years ago

Hi, Thank you very much @Katawann. Yes, I succeed building with previous version changing the build.gradle to get previous version! (v0.35.1) This error is gone!

But now there is a new issue when I do: int mavsdkServerPort = mavsdkServer.run();, my app crash showing:

06-29 10:52:14.549 28234-28305/com.nachod30.appMapDrone A/libc: /usr/local/google/buildbot/src/android/ndk-release-r20/external/libcxx/../../external/libcxxabi/src/abort_message.cpp:73: abort_message: assertion "terminating with uncaught exception of type std::bad_cast: std::bad_cast" failed
06-29 10:52:14.550 28234-28305/com.nachod30.appMapDrone A/libc: Fatal signal 6 (SIGABRT), code -6 in tid 28305 (mqt_native_modu)

Any suggestions? Thanks.

Katawann commented 3 years ago

Somehow this error -6 looks really familiar to me but I can't remember how I fixed it...

Otherwise we need to dig to generate this mavsdk library statically in a proper way

julianoes commented 2 years ago

Can this be closed? Or is there still work going on?