Still crash on load due to missing image file

Question

Still crash on load due to missing image file

muyangren499 opened this issue 8 years ago · comments

@mpaperno @LorenzMeier
I have a problem in anting the project jmavsim. I also get a crash on boot because the image is not found:

Exception in thread "main" java.lang.IllegalArgumentException: input == null!
at javax.imageio.ImageIO.read(ImageIO.java:1388)
at me.drton.jmavsim.Visualizer3D$CustomCanvas3D.(Visualizer3D.java:707)
at me.drton.jmavsim.Visualizer3D.(Visualizer3D.java:114)
at me.drton.jmavsim.Simulator.(Simulator.java:209)
at me.drton.jmavsim.Simulator.main(Simulator.java:611)
I also used followed code, but it still report this errors.
java -Djava.ext.dirs= -cp lib/*:out/production/jmavsim.jar me.drton.jmavsim.Simulator

In aternate build method. the terminal report that the error is followed:

BUILD FAILED
Target "creat_run_jar" does not exist in the project "jMAVSim".

OS:Ubuntu 14.04 64bit
FIle:/home/user

Max Paperno · Answer 1 · Mon Apr 04 2016 12:58:59 GMT+0800 (China Standard Time)

BUILD FAILED Target "creat_run_jar" does not exist in the project "jMAVSim". 
                         ^

Please check your spelling.

I don't know why the images don't work when trying to start it the "old way." It shouldlook in environment/ folder relative to the executing directory.

Someone could try to debug the line throwing the error -- perhaps the way the image is being loaded (the classLoader) is causing the problem. There are quite a few ways to load a URL/path in Java... one of them should work (as an example, there's another way used in KinematicObject.modelFromFile()).

// load and scale compass image for overlay
Image img = ImageIO.read(getClass().getClassLoader().getResource(TEX_DIR + COMPASS_IMG));

-Max

Zhiyan Dong · Answer 2 · Mon Apr 04 2016 13:32:45 GMT+0800 (China Standard Time)

Thank you, Max. I will try it. I just copied the code" ant create_run_jar copy_res" to the terminal. I am a newer of Ubuntu,since the jMAVSIm is work in WIndows.

Zhiyan Dong · Answer 3 · Mon Apr 04 2016 16:31:35 GMT+0800 (China Standard Time)

@mpaperno Thank you very much for your work. the code is work after you fixed in my somputer

Zhiyan Dong · Answer 4 · Mon Apr 04 2016 16:31:59 GMT+0800 (China Standard Time)

in my computer

Max Paperno · Answer 5 · Mon Apr 04 2016 16:33:07 GMT+0800 (China Standard Time)

Good to hear, and thanks for letting me know!

-Max

On Mon, Apr 04, 2016, at 04:31 AM (-0400), muyangren499 notifications@github.com wrote:

@mpaperno https://github.com/mpaperno Thank you very much for your work. the code is work after you fixed in my somputer

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Zhiyan Dong · Answer 6 · Mon Apr 04 2016 16:49:11 GMT+0800 (China Standard Time)

@mpaperno Great job! I will test controller in the next period of time