cannot run: no command

[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

[Asha]

Hi,

opt directory has the permissions

drwxr_xr_x,

I changed the permissions through the command

"chmod go+w opt"

after this the permission of opt is
drwxrwxrwx

So,now again I build the application and getting the same problem.

Any suggestions.

[jsulm]

@asha You changed the permissions on your target device?
Also, this is a bad solution.
Better give the user write access.

[Asha]

sir,

how to change the permission on target device ,can you elaborate please,
How to give the user write access.

[Asha]

Hi,

now i changed the user write acces,that is

drwxrwxrwx beagle1

after this also I am getting the same problem.

[Asha]

Hi,

I have two qt versions on my kit is there any problem?

[Asha]

Hi,

Please tell me,how to install qt creator on ubuntu 18.04,which version qt is required,which version cross-compiler is required,how to install that one,how to install debugger also,and how to configure the kit(actually I Know this steps,but I want to confirm that, what I did either it is correct or wrong)...

Thankyou

[Asha]

Good Morning guys,

Any suggestions please..

[jsulm]

@asha "how to install qt creator on ubuntu 18.04" - either install one delivered with Ubuntu using apt-get, or download QtCreator from official website.
"which version qt is required" - you should know that. Which version do you want to use, or which version is supported by your SDK?
"which version cross-compiler is required" - the one provided by the SDK for your device.
"how to install that one" - should be part of the SDK.
"how to install debugger also" - should be part of the SDK.

[Asha]

Thankyou for the replay,

I done the same things..

then also getting permission denied error while running the qt application..

trying to login ssh root@192.168.7.2 there also same error permission denied..

not getting what is the problem..

[jsulm]

@asha said in cannot run: no command:

trying to login ssh root@192.168.7.2 there also same error permission denied..

So, you actually can't login using SSH?
Then you first need to solve this problem.
Looks like root is not allowed to login via SSH on this device.
Do you have other users there?
Also, see https://www.cyberciti.biz/faq/howto-limit-what-users-can-log-onto-system-via-ssh/

[Asha]

yes I have other user as debian, through "ssh debian@192.168.7.2" I am able to login in target machine.

[jsulm]

@asha Then either use that user or enable root login via SSH

[Asha]

Hi,

I login via debian user

then enabled the root login /etc/ssh/sshd_config file

here is the running status

now I am able login as a root

So, I changed the directory /opt permissions here "chmod go+wx opt"

after this all, restarted the system ,and open the qt and run the simple application, the result is

So now what is the problem...any idea about this...(Thankyou very much)...

[jsulm]

@asha You did not cross compile your app for your device.
You can verify this by doing (in a terminal):

file PATH_TO_YOUR_EXE

and checking its output.

[Asha]

can you give example,for more understanding purpose

[jsulm]

@asha You open a terminal and type "file" followed by the path to the executable file you built and press enter...
For more information see "man file".