cannot run: no command

[Asha]

Hi,
I am building a simple qt application,done with kit selection also, getting application output "cannot run:No command given" ,I am not getting whats wrong,can anyone help ,thankyou.

[Ratzz]

@asha
Can you show your sample code?

[Asha]

yes,here is the attachement of sample code Please go through this and let me know what mistakes I am doing,how to solve this,

[Asha]

Hi,
I am waiting for your suggestion,please replay me...

[Asha]

Hi,
here is one more attachement,which shows the .pro file and error please go through this,and let me know how to proceed next...

[Ratzz]

@asha
What device are you connecting ?
Can you show me your kits configuration?

[Asha]

Hi,
I am connecting the linux device(beagleboneboard),the kit configuration attached here .

[Asha]

Hi,
I am waiting for your replay,

[aha_1980]

@asha Please show the Qt versions and compilers tabs also.

And be a bit more patient: People here help in their free time and live all around the world, not necessarily in the same time zone as you.

• Did you follow a guide to set the toolchain up?
• Which Creator version is that?

Regards

[Asha]

Hi,

Good Morning,

Thankyou for the replay,

here I am going to attach the Qtversion and compiler also please go through that
.

qt creator version is 5.9,sorry but the first question I am not getting..

[Asha]

One more thing I want to share,without connecting the linux device on devices(when selecting Desktop its fine),its running the application but when I am trying with selecting the general linux device getting the error :cannot run :No command given"

[Pablo J. Rogina]

@asha said in cannot run: no command:

I am connecting the linux device(beagleboneboard)

Have you followed any installation/setup guide for cross-compiling Qt for the BBB device, just like this one for example?

I don't own such device, but from previous experience with cross-compiling Qt for other devices (i.e. Raspberry Pi) and using those devices with Qt Creator, such guide seems quite acceptable.

It also mentions something that could be really applicable to the issue you're describing:

When you try to deploy a program on your BBB from QtCreator you may get an error about an unknown command. This is because QtCreator does not know where to copy the compiled file onto the BBB. The following line should be added to your .pro file:
target.path = /home/Matilda/
You may change the path to anything you want and the executable will be copied to and run from this location.
Now you are ready to run your first Qt BBB project.

[Asha]

Sir,
Thankyou for the replay,

I installed the qt5 through commands.

sudo apt-get install build-essential
sudo apt-get install qtcreator
sudo apt-get install qt5-default
sudo apt-get install qt5-doc
sudo apt-get install qt5-doc-html
sudo apt-get install qtbase5-doc-html
sudo apt-get install qtbase5-examples

but after this all,

I uninstalled the qt5,now again i installed qt5,while downloaded and executing this file :"qt-opensource-linux-x64-5.13.0.run",

now I am getting the error

and that is showing 2 qt versions .

how to remove one qt 5.9.5 in PATH(qt5)? because after uninstalling I am getting 2versions and

please give the suggestions for :"permission denied error"

Thankyou.

[aha_1980]

@asha

I think you need to fundamentally start at a lower point.

So you want to compile for the BeagleBone board, which has an ARM processor. I assume you are working on a PC with Intel or AMD processor.

So what you need to do, is to cross-compile your code to ARM. Therefore you need:

• An ARM cross-compiler with system libraries ("toolchain")
• A Qt version cross-compiled for ARM
• A cross-debugger, if you want to debug on the target

From your screenshots, I don't see a cross-compiler nor a cross-Qt version.

Without them, it's impossible to build programs for the BeagleBone.

Regards

Edit: The Android versions (despite beeing ARM too), will not help you.

[Asha]

Hi,

I installed the cross compiler ,through the following command:

sudo apt-get install gcc-arm-linux-gnueabihf

And installed cross debugger via

sudo apt-get install gdb-multiarch,

Here is the attacment of cross-debugger,cross-compiler, and kit configuration

after this configurations and running a simple application with cross compilers and debuggers only getting error ,now what is the mistake,please let me know...and installing cross compiler and debugger process is currect or wrong..and in lit configuration its showing red mark..

[Pablo J. Rogina]

@asha your kit has error, see the RED icon in 3rd screenshot previous post. You need to check at bottom of such page to see what the message is regarding the issue...

[Asha]

Hi,

I am getting the issue "Failed to create remote directories : mkdir: cannot create directory'/opt/aa': Permission denied...any suggestion for this..

[jsulm]

@asha said in cannot run: no command:

/opt/aa

/opt is a directory where only root has write access. You need to give the user write access to the directory you want to use or (better) use users home directory to deploy.

[Asha]

Sir,

I am very new to qt,please can you elaborate how to give user write access to the /opt directory..

[aha_1980]

@asha said in cannot run: no command:

I am very new to qt,please can you elaborate how to give user write access to the /opt directory..

That has nothing to do with Qt. /opt is a system directory, only the administrator (root) has write access there. If you need to install something there use the sudo command - but be careful, you can destroy you whole system if you do something wrong.

Regards