Comments (27)
DaeunGod
commented on July 17, 2024
1
@julianoes Thanks. i will try it!
It works. Thank you so much for your help.
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DaeunGod
commented on July 17, 2024
Hi julianoes, Did you solve this problem? because i have a same problem too.
i tried to run jmavsim_run.jar with java7 and java8 but it showed the different errors.
So, if you have any advice then please notice me.
thanks.
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julianoes
commented on July 17, 2024
It works with Java 8. Make sure to clean build by deleting the out folder, and otherwise post your error.
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nicollorens12
commented on July 17, 2024
Hi!
I have the same problem, i'm using java 11. What's the out folder?
Thanks
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julianoes
commented on July 17, 2024
The steps for the Java 8 workaround are:
cd wherever/Firmware
rm -rf Tools/jMAVSim/out
export JAVA_HOME=$(/usr/libexec/java_home -v 1.8)
make posix jmavsim
Also, see: http://discuss.px4.io/t/problem-running-jmavsim-on-macos-high-sierra/5357/20
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nicollorens12
commented on July 17, 2024
Hi! Thanks for the response,
Now i'm getting this error:
Exception in thread 'main' java.lang.reflect.InvocationTargetException
followed by many other lines of errors...
El dom., 2 dic. 2018 19:39, Julian Oes <[email protected]> escribió:
… The steps for the Java 8 workaround are:
cd wherever/Firmware
rm -rf Tools/jMAVSim/out
export JAVA_HOME=$(/usr/libexec/java_home -v 1.8)
make posix jmavsim
Also, see:
http://discuss.px4.io/t/problem-running-jmavsim-on-macos-high-sierra/5357/20
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julianoes
commented on July 17, 2024
@nicollorens12 could it be that you ran the simulation in a new shell window after doing the steps I mentioned above? The export command is only valid for the current shell, and it could be that you're seeing these errors because it is using Java 11 to run the Java 8 compiled code.
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nicollorens12
commented on July 17, 2024
I'm getting this error with java 11 but also with java 8. I haven't tried
any export comand. In the instalation guide doesn't say you have to do any
export comand.
El lun., 3 dic. 2018 8:58, Julian Oes <[email protected]> escribió:
… @nicollorens12 <https://github.com/nicollorens12> could it be that you
ran the simulation in a new shell window after doing the steps I mentioned
above? The export command is only valid for the current shell, and it
could be that you're seeing these errors because it is using Java 11 to run
the Java 8 compiled code.
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julianoes
commented on July 17, 2024
@nicollorens12 you need to follow the steps I posted above.
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nicollorens12
commented on July 17, 2024
Oh sorry, I'll try later when I get home. Thank you so much. I'll tell you
the result I get.
El lun., 3 dic. 2018 9:22, Julian Oes <[email protected]> escribió:
… @nicollorens12 <https://github.com/nicollorens12> you need to follow the
steps I posted above.
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nicollorens12
commented on July 17, 2024
Hi again,
I'm trying the export comand but I get this error. bash:
/usr/libexec/java_home: No such file or directory
El lun., 3 dic. 2018 10:16, hjfktjr <[email protected]> escribió:
… Oh sorry, I'll try later when I get home. Thank you so much. I'll tell you
the result I get.
El lun., 3 dic. 2018 9:22, Julian Oes ***@***.***> escribió:
> @nicollorens12 <https://github.com/nicollorens12> you need to follow the
> steps I posted above.
>
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>
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julianoes
commented on July 17, 2024
I'm trying the export comand but I get this error. bash: /usr/libexec/java_home: No such file or directory
Ok, this probably means that you don't have Java 8 installed. I'd try to install Java 8.
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nicollorens12
commented on July 17, 2024
Hi,
I've modified the export comand to the path lf my java, now i'm getting
this back.
Unrecognized option: -v
Error: Could not create the Java Virtual Machine
Error: A fatal exception occurred. Program will exit.
I do java 8 install because when I java -version I get openjdk version
1.8.0_191 and everything.
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julianoes
commented on July 17, 2024
Have you tried -version or --version?
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nicollorens12
commented on July 17, 2024
I've tried again the comand make posix jmavsim and now I get something to
work!! It says Waiting for initial data on UDP port 14560. Please start the
flight simulator to proceed!
But shouldn't I get the jmavsim program opened already?
El dom., 2 dic. 2018 19:39, Julian Oes <[email protected]> escribió:
… The steps for the Java 8 workaround are:
cd wherever/Firmware
rm -rf Tools/jMAVSim/out
export JAVA_HOME=$(/usr/libexec/java_home -v 1.8)
make posix jmavsim
Also, see:
http://discuss.px4.io/t/problem-running-jmavsim-on-macos-high-sierra/5357/20
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julianoes
commented on July 17, 2024
Look through the output, something must have failed if you see that.
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nicollorens12
commented on July 17, 2024
Yes I see. After saying px4 started it says:
/home/nico/Firmware/Tools/jmavsim_run.sh: line 58: ant: comand not found
El lun., 3 dic. 2018 18:20, Julian Oes <[email protected]> escribió:
… Look through the output, something must have failed if you see that.
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julianoes
commented on July 17, 2024
brew install ant
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nicollorens12
commented on July 17, 2024
I'm getting now the same. The build is succesful but when it starts the GUI
it says in thread "main" java.lang.reflect.InvocationTargetException
I do have java 8
El lun., 3 dic. 2018 19:18, Julian Oes <[email protected]> escribió:
…
https://stackoverflow.com/questions/3222804/how-can-i-install-apache-ant-on-mac-os-x/20984975#20984975
brew install ant
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julianoes
commented on July 17, 2024
@nicollorens12 can you please do make clean and then build it and copy all of the output to pastebin and link it here?
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nicollorens12
commented on July 17, 2024
Sorry for the late respond
Pastebin: pastebin.com/W4jW5ptt
El mar., 4 dic. 2018 8:40, Julian Oes <[email protected]> escribió:
… @nicollorens12 <https://github.com/nicollorens12> can you please do make
clean and then build it and copy all of the output to pastebin and link
it here?
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julianoes
commented on July 17, 2024
I would need "all of the output" including make clean, the exports, etc.
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nicollorens12
commented on July 17, 2024
Here you have it: pastebin.com/CSVSvLCy
El vie., 7 dic. 2018 17:02, Julian Oes <[email protected]> escribió:
… I would need "all of the output" including make clean, the exports, etc.
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julianoes
commented on July 17, 2024
Ok, so the export command didn't work, so of course jMAVSim won't work properly later.
export JAVA_Home=$(/usr/libexec/java_home -v 1.8)
bash: /usr/libexec/java_home: No such file or directory
I would try to install Oracle Java SE Development Kit 8:
https://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html
And on the side, why are you doing these things as root? That seems dangerous.
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nicollorens12
commented on July 17, 2024
I'm reinstalling ubuntu because I think I'm messing up the enviroment
paths. I'll install a clean java 8 version and try to build the program.
Thanks
El sáb., 8 dic. 2018 7:22, Julian Oes <[email protected]> escribió:
… Ok, so the export command didn't work, so of course jMAVSim won't work
properly later.
export JAVA_Home=$(/usr/libexec/java_home -v 1.8)
bash: /usr/libexec/java_home: No such file or directory
I would try to install Oracle Java SE Development Kit 8:
https://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html
And on the side, why are you doing these things as root? That seems
dangerous.
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julianoes
commented on July 17, 2024
Oh, and I was assuming and trying to help with macOS!
This issue is about macOS not Ubuntu. For Ubuntu I suggest you create a new issue, that way it gets clearer.
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julianoes
commented on July 17, 2024
This one has been resolved, see: https://dev.px4.io/master/en/simulation/jmavsim.html#an-illegal-reflective-access-operation-has-occured
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