Installation question [SOLVED]

[LongJohnShiver]

Hello, Im using the latest 3.32.3 QCad from the shop. The installation guide says, that I can put the archive to any folder of my choice. But I got this error, appended to this post.

I looked at my installed libraries and I got the qt5x lib installed.

Should I set the path to QT or QCad in the system environment? In this case I need assistance, cause Im not really a linux pro.

What do I have to do with this error message?

Any help would be highly appreciated.
Thanks in advance.

LongJohnShiver

[LongJohnShiver]

No one an idea?

[Husky]

Here you can find step by step instructions for each by Qcad offered OS's

https://www.qcad.org/en/qcad-installation

[LongJohnShiver]

Yes, thanks. I already followed this instruction for the tar.gz archive. But unfortunately I got this error message from above.

What I did:

Extract the tar.gz archive to a folder of my choice. (as mentioned in the text from your link)

Set ./qcad in the cli from the folder where I put the files from the tar.gz archive.

Next I get this error message.

I cannot start the program from inside the folder, where I extract the tar.gz archive with ./qcad. I mean literally this is the text I wrote in my first post to this topic.

What can I do?

[CVH]

Hi,

A global forum search on the terms 'Qt platform plugin xcb' returns 20 hits.
Perhaps your problem is already answered.

Regards,
CVH

[andrew]

You are likely missing dependencies on your system.

You can check this with:

Code: Select all

LD_LIBRARY_PATH=. ldd qcad-bin

Feel free to post the output if you need more help.

Alternatively, since you are installing a snapshot release, you can install the flatpak (Linux x86 64bit Flatpak, qcad-3.32.3.1-pro-linux-qt6-x86_64.flatpak) instead of the tar.gz. A flatpak will install all dependencies along with QCAD automatically. Flatpaks are also sandboxed. We currently only have installation instructions for Chromebooks, but the installation is almost the same from step "Installing flatpak" onwards:

https://qcad.org/en/qcad-installation-o ... chromebook

[LongJohnShiver]

Hi,

A global forum search on the terms 'Qt platform plugin xcb' returns 20 hits.
Perhaps your problem is already answered.

Regards,
CVH

Yes, thanks. A look at my first post returns, that I have the qt5xcb libraries already installed.

[LongJohnShiver]

You are likely missing dependencies on your system.

You can check this with:

Code: Select all

LD_LIBRARY_PATH=. ldd qcad-bin

Feel free to post the output if you need more help.

Alternatively, since you are installing a snapshot release, you can install the flatpak (Linux x86 64bit Flatpak, qcad-3.32.3.1-pro-linux-qt6-x86_64.flatpak) instead of the tar.gz. A flatpak will install all dependencies along with QCAD automatically. Flatpaks are also sandboxed. We currently only have installation instructions for Chromebooks, but the installation is almost the same from step "Installing flatpak" onwards:

https://qcad.org/en/qcad-installation-o ... chromebook

Ill try the flatpack files out soon. Thanks!

[LongJohnShiver]

Hello, if Im installing the CE Version from tar.gz archive (by deleting some plugins to turn the trial files into CE version), I can run ./qcad from folder without errors. The program opens.
After purchasing the pro version, this way to open qcad wont work for me anymore. I'll try to figure out a bit more and come back to here.

1. LD_LIBRARY_PATH=. ldd qcad-bin
This outputs a list that doesnt show any "not found" entries.

[andrew]

Are you sure that the trial is the same version / package? For QCAD Professional, you downloaded a Qt 6 based development snapshot release (3.32.3.1). Could it be that for the trial you have downloaded the Qt 5 based stable release instead (3.32.3)?

[LongJohnShiver]

Hi Andrew,
I double checked it. On my system I got the qt5xcb library installed and you are right. As I wrote the topic here, I was using the snapshot version with qt6 dependencies. So I was downloading the correct file with qt5xcb lib 5 min ago. But it seems that the error still occurs, even with this fresh downloaded qt5xcb version of qcad. I got an error message, literally the same as with qt6 version of qcad.

The exact file name is:
qcad-3.32.3-pro-linux-qt5.14-x86_64.tar.gz
from where I put the files to a folder of my choice (but in my userspace).

btw: the CE version still runs with ./qcad. The Pro version not.

[andrew]

Can you try running it with:

Code: Select all

QT_AUTO_SCREEN_SCALE_FACTOR=1 LD_LIBRARY_PATH="." ./qcad-bin

Also, please indicate what exact Linux distribution you are using (name and version), thanks.

Did you have a chance to try the flatpak?

[LongJohnShiver]

My Linux OS is Parrot Home 6.12.32-amd64.

The output from

Code: Select all

QT_AUTO_SCREEN_SCALE_FACTOR=1 LD_LIBRARY_PATH="." ./qcad-bin

is

[LongJohnShiver]

Did you have a chance to try the flatpak?

No, not yet. But I do later this day.

[andrew]

My Linux OS is Parrot Home 6.12.32-amd64.

OK. We don't have that here.

Two other possibilities are:

Code: Select all

QT_AUTO_SCREEN_SCALE_FACTOR=1 LD_LIBRARY_PATH=".:./plugins" ./qcad-bin -platform xcb

Code: Select all

QT_AUTO_SCREEN_SCALE_FACTOR=1 LD_LIBRARY_PATH=".:./plugins" ./qcad-bin -platform wayland

Otherwise, the flatpak is the way to go as that runs in its own environment, pretty much independent from your system.