Help with Linux app built with LC on Mac

Sat Jan 11 12:14:15 EST 2025

Hi Martin,

Thank you for your reply, apologies for the delayed response, we have been travelling/sightseeing for a few days so I have not had much time for the computer, a little rain has slowed activities today! :-)

I tried the ldd command, but it just returned ’not a dynamic executable’, I assumed that means Linux does not recognize the file as an app, so I looked up what that meant online and found a little more info, then tried the ‘file’ command (as suggested from the search results) and it returned;

parallels at ubuntu-linux-22-04-02-desktop:~/Documents/Linux x64$ file HelloWorld
HelloWorld: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically lin
ked, interpreter /lib64/ld-linux-x86-64.50.2, for GNU/Linux 2.6.32, BuildID[sha1
]=46300372835d048c44a256611604d7f6b179aba5, not stripped

So it seems Ubuntu is recognizing the app, but just not launching it!

Tried the same in Debian:

parallels at debian-gnu-linux-12:~$ ldd '/home/parallels/Documents/Linux Builds/Linux X64/Hello World'
not a dynamic executable
parallels at debian-gnu-linux-12:~$ file '/home/parallels/Documents/Linux Builds/Linux x64/Hello World'
/home/parallels/Documents/Linux Builds/Linux x64/Hello World: ELF 64-bit LSB executable, x86-64, version
1 (SYSV), dynamically linked, interpreter /1ib64/1d-linux-x86-64.50.2, for GNU/Linux 2.6.32, BuildID[sha1]=46300372835d048c44a256611604d7f6b179aba5, not stripped
parallels at debian-gnu-linux-12:~$

Same result.

If I try to launch through Terminal;
parallels at debian-gnu-linux-12:~$ '/home/parallels/Documents/Linux Builds/Linux X64/Hello World'
bash: /home/parallels/Documents/Linux Builds/Linux x64/Hello World: cannot execute binary file: Exec for
mat error

A little more digging and it seems LC  is only building an x86 executable and Parallels installs Linux on ARM64, so they are just not compatible...

Quote:
Ubuntu Exec Format Error
The “Exec format error” in Ubuntu typically indicates that the system cannot recognize the file as a shell script or executable. This can happen due to several reasons, such as a missing shebang (#!) at the start of a script, incorrect file permissions, or running an executable on the wrong architecture. For instance, trying to run an x86 executable on an ARM CPU can cause this error. Adding a shebang at the beginning of your script, ensuring the correct architecture matches, and verifying file permissions can help resolve the issue.

Thank you everyone for your help, I’ve learned a little more about Linux now. I’ll send this back to LC for their input.

Paul

> On Jan 5, 2025, at 07:14, Martin Baxter via use-livecode <use-livecode at lists.runrev.com> wrote:
> 
> Hi Paul
> 
> 1 Does the application have executable permission on linux?
> 
> 2 If it does, the issue might perhaps be missing dependencies
> check on the linux command line:
> 
> ldd <path to application>
> 
> that will return a list of libraries on which the app depends and the path to them, you would need to install any that are not present
> 
> Martin
> 
> On 02/01/2025 17:17, Paul - Livecode via use-livecode wrote:
>> Hi Tom, thanks for the suggestion. No, there is no browser in the app, it is just a simple app for manipulating and editing specific CSV files. It does use quite a few modern widget controls though, mainly a Polygrid and a few Powerbuttons. Although I also tested a very simple hello world app, and I couldn’t get that to run in Linux under Parallels on Mac M2, both my app and the simple test run fine in Linux under Parallels on an Intel Mac, so there is definitely something odd going on. Not sure if it’s just my setup or if it’s a LC/Parallels/M2 thing.
>> I’m hoping to send it off to LC today, but I’m going to be travelling for a few days after tomorrow, so I may have to follow up with this later next week.
>> Paul
>>> On Jan 1, 2025, at 20:35, Tom Glod via use-livecode <use-livecode at lists.runrev.com> wrote:
>>> 
>>> Hi Paul, does your app have a browser in it ? if so, you need to build the
>>> linux build on a linux box.
>>> Perhaps this is true for some of the other necessary inclusions.
>>> Thats the only experience I've had with working linux builds vs not
>>> working.
>>> Let us know if you figure it out.
>>> 
>>> 
>>> 
>>> On Tue, Dec 31, 2024 at 6:32 PM Paul - Livecode via use-livecode <
>>> use-livecode at lists.runrev.com> wrote:
>>> 
>>>> 
>>>> Hi everyone,
>>>> 
>>>> I’ve been a long-time list member, but never really felt the need to ask
>>>> for advice until now. I’ve just built a small app using LC 9.6.13 and built
>>>> standalones for Mac, Windows, and Linux, which I may look at distributing
>>>> once all testing is done.
>>>> 
>>>> I’m using a MacBook Pro M2 for development, and I have Parallels for
>>>> testing. The Mac and Windows versions appear to be working fine, but when I
>>>> try to launch the Linux standalone in Ubuntu via Parallels, it won’t even
>>>> launch. When I double-click the app icon, there is no response. The same is
>>>> true if I right-click and choose “Run”. I checked the app and folder
>>>> permissions, and they appear to be OK. The app is on the Linux partition,
>>>> and I have tried both the standard and x64 versions.
>>>> 
>>>> I’ve never used Linux before, apart from on RPi, so I’m not sure if there
>>>> is something that I am missing or doing wrong. Any ideas or advice would be
>>>> gratefully received.
>>>> 
>>>> Thank you, and wishing you all a wonderful New Year.
>>>> 
>>>> Paul
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