Problem in Deploying and Running Application on Ubuntu.

jsulm

@Girishkuniyal Remove the blank after = in:

LD_LIBRARY_PATH= $PWD/Qt_Libraries

Girishkuniyal

@jsulm
Now I got this error
Segmentation fault (core dumped)

p3c0

@Girishkuniyal
Make sure there is no space after = sign:

LD_LIBRARY_PATH=$PWD/Qt_Libraries

Try printing LD_LIBRARY_PATH using echo

Girishkuniyal

@p3c0 Now it shows the path of Qt_LIbraries
/home/gman/soduku-solver deploy/Qt_Libraries

p3c0

@Girishkuniyal
In your code I see a lots of hardcoded paths. Are you sure those are all present on the deployment machine ?

Girishkuniyal

Yes but how to manage this hardcoded path when we are sending my application to another pc. @p3c0

p3c0

@Girishkuniyal If they are just images then put them inside resource files which then automatically gets embedded into your app's binary after compilation.
But for now first make sure these paths are not causing the seg fault. I didnt check all the files.

Girishkuniyal

can I remove this statements from our code like
QPixmap qpic("/home/torrent/build-soduku-solver-Desktop_Qt_5_7_0_GCC_64bit-Debug/images/brain.png");
after removing this i could get errors

p3c0

@Girishkuniyal Dont remove that whole line just replace the paths with existing paths present on deployment machine. For eg. you can keep these images inside your deployment folder i.e where your binary is present.

Girishkuniyal

should i create another directory named resources under soduku-solver deploy folder and place all graphic image under it? and gives that path in our code with respect to binary. @p3c0

p3c0

@Girishkuniyal No problem for now. But remember using Qt's Resource system in the future to avoid cross deployment problems.

p3c0

@Girishkuniyal You could also check using strace to check what files are being opened and that they are found. Try this:
strace -e open yourbinary

Girishkuniyal

@p3c0
strace -e open ./soduku-solver.sh output is
link here or
alt text

p3c0

@Girishkuniyal No.. Run it on your binary and not your script. Put that inside your shell script.

Girishkuniyal

Now Output is http://paste.ubuntu.com/23202346/ @p3c0

p3c0

@Girishkuniyal I had said to put it inside your script because you set LD_LIBRARY_PATH there. Due to this you can see the binary was not able to resolve the Qt library paths.
Anyway if you decide to run it directly make sure you export LD_LIBRARY_PATH on the terminal just before running the strace. This will make sure the library path is set.
Paste that output.
i.e whatever you do inside the script, run that directly on the terminal line by line except the first line #!/bin/sh

Girishkuniyal

Now The Output is http://paste.ubuntu.com/23202369/

p3c0

Something is wrong. It should have printed all the open calls on the terminal like it printed as seen in the last screenshot that you posted. Can you check again whats wrong?

Girishkuniyal

are you know . I am running all this in my virtual machine different from development machine? @p3c0

p3c0

@Girishkuniyal It doesn't matter if your deployment machine is a virtual machine or a physical machine as long as the application requirements are satisfied.