could not find qtplatfom plugin eglfs

[Asha]

@Ketank16 Hi,

can you please show me the, any .pro file,

I am very confused with this target.path file..

I followed this..

here is my .pro file

what i gave target.path, is it correct?

if its correct I am getting the error as shown in screenshot,

for that error solution ,I gave all the rights(rwx) to the /home/beagle/Qt5.13.1 directory then also getting the same error,any suggestions please....

[Asha]

Hi,

Any ideas?

[Pablo J. Rogina]

@Asha I think the problem is the $$[Qt5] placeholder in the value for target.path variable in your .pro
what if you just make it simple as target.path=/home/beagle/Qt5.13.1

PS: please STOP pasting pictures and just paste TEXT so it's easier for others to reference your posts...

[Asha]

@Pablo-J-Rogina

Good morning ,

Thanks for the replay,

After giving /home/beagle/Qt5.13.1 in my .pro file also getting the same problem...

Here is the compile output:

10:22:04: Running steps for project concentriccircles...
10:22:04: Configuration unchanged, skipping qmake step.
10:22:04: Starting: "/usr/bin/make" -j4
make: Nothing to be done for 'first'.
10:22:04: The process "/usr/bin/make" exited normally.
10:22:04: Connecting to device "Generic Linux Device" (192.168.7.2).
10:22:08: The remote file system has 49 megabytes of free space, going ahead.
10:22:08: Deploy step finished.
10:22:08: Trying to kill "/home/beagle/Qt5.13.1/concentriccircles" on remote device...
10:22:11: Remote application killed.
10:22:11: Deploy step finished.
10:22:11: Failed to create remote directories: mkdir: cannot create directory ‘/home/beagle’: Permission denied

10:22:11: Deploy step failed.
Error while building/deploying project concentriccircles (kit: BBB)
When executing step "Deploy files via rsync"
10:22:11: Elapsed time: 00:07.

[jsulm]

@Asha Does /home/beagle directory exist on your device?

[Asha]

@jsulm

/home/beagle does not exit on my device,
I installed Qt in my laptop(location is: /home/beagle/Qt5.13.1)

I copied the cross compiled qt in my device(location is : /home/debian/Qt5),

one more thing,I want to tell

my user password is :1234

I am trying to connect ssh via root,but giving the password 1234 ,I am not able to connect with my board ,getting the permission denied error,

but giving the password "ims1" ,I am able to login via root,
where "ims1" is my old user password ,is this may cause any issues?

[jsulm]

@Asha said in could not find qtplatfom plugin eglfs:

/home/beagle does not exit on my device

Well, that's the problem: only root has write access in /home.
Why do you use /home/beagle if your user is debian?!
Use /home/debian ...

[Asha]

@jsulm

while giving the /home/debian

here is the compile output:
11:13:06: Running steps for project concentriccircles...
11:13:06: Configuration unchanged, skipping qmake step.
11:13:06: Starting: "/usr/bin/make" -j4
make: Nothing to be done for 'first'.
11:13:06: The process "/usr/bin/make" exited normally.
11:13:06: The remote file system has 46 megabytes of free space, going ahead.
11:13:06: Deploy step finished.
11:13:06: Trying to kill "/home/debian/Qt5/concentriccircles" on remote device...
11:13:08: Remote application killed.
11:13:08: Deploy step finished.
11:13:08: sending incremental file list

11:13:08:
sent 72 bytes received 12 bytes 168.00 bytes/sec
total size is 1,576,416 speedup is 18,766.86

11:13:08: Deploy step finished.
11:13:08: Elapsed time: 00:03.

And

Application output is:

11:13:09: Starting /home/debian/Qt5/concentriccircles ...
qt.qpa.plugin: Could not find the Qt platform plugin "eglfs" in ""
This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.

Available platform plugins are: linuxfb, minimal, offscreen, vnc.

11:13:09: Remote process crashed.

[jsulm]

@Asha said in could not find qtplatfom plugin eglfs:

linuxfb, minimal, offscreen, vnc

Looks like you did not build eglfs support when building Qt

[Asha]

@jsulm
but other platforms like linuxfb and vnc both are enabled while building qt,

And I exported linuxfb in my device...

one more ,while building I tried with -eglfs option also but got the error like

ERROR: 'eglfs' already enabled...

[jsulm]

@Asha What do you actually want to use? eglfs? linuxfb? ...?
Adding -eglfs is not going to help as it is already activated, but your Qt build does not support it.

[Asha]

@jsulm I just want to run one simple application in my device, by using anyone..

[jsulm]

@Asha Well, I think I already mentioned this once: you have to know what your device actually uses. Is it X11, eglfs, linuxfb, ...?

[Asha]

@jsulm

can you please tell me more about X11,or any link..what exactly it will do?

[jsulm]

@Asha Google knows https://en.wikipedia.org/wiki/X_Window_System

[Asha]

@jsulm It means first i need to find which backend is running on my device ,based on that I need to cross compile the qt?

[jsulm]

@Asha said in could not find qtplatfom plugin eglfs:

i need to find which backend is running on my device

yes

[Asha]

@jsulm after finding ,again i need to build ,cross compiled qt?

[jsulm]

@Asha If you did not cross compile needed platform plug-in then yes

[Asha]

@jsulm Hi,

I flashed my board with debian image...any idea which plugin is running on that image...

I got the answer ,we are using linux backend...