I can not install Qt 5.10 on Debian 9.3 because of SSL problem?!

Mucip

Hi,
I fresh install Debian 9.3 (XFCE4 gui) and try to install Qt 9.10 via qt-unified-linux-x64-3.0.2-online. But I realized that there is still SSL problem with Qt!.
Error message like below;
$ ./qt-unified-linux-x64-3.0.2-online.run
[371] Warning: LicenseManager: Ssl error: "The issuer certificate of a locally looked up certificate could not be found"
[372] Warning: Network error: [ QNetworkReply::NetworkError(SslHandshakeFailedError) ] "Failed to connect to server. Check your network connection and try again."

And installed SSL version is:
$ openssl version
OpenSSL 1.1.0f 25 May 2017

Why we have this error still?!...

Regards,
Mucip:)

SGaist

Hi,

Did you also install the corresponding development package ?

Mucip

Hi,
If you mean;
sudo apt-get install build-essential

Yes. I already installed...

There is still SSL problem unfortunatelly after than below topic:

https://forum.qt.io/topic/82477/ssl-handshake-failed-error-during-installation/10

Regards,
Mucip:)

SGaist

That’s not what I meant but it’s not important. I misunderstood the error. You have to install the OpenSSL-1.0.2 package from Debian.

The 1.1 series broke ABI and API compatibility. Since 5.10 Qt will have a backend for it.

Mucip

Dear @SGaist ,
But this is already 5.10, isn't it? When will il be solved?...

Regards,
Mucip:)

SGaist

Yes it is, but currently, the oldest supported Linux distributions still use OpenSSL 1.0.

As to when the backend will be switched for the pre-built package, I don’t know.

However, you can build Qt yourself to use the 1.1 backend.

Mucip

Hi @SGaist ,
Re-compile is really difficult way I guess... :)
Better to wait from Qt.

Regards,
Mucip:)

VRonin

@Mucip said in I can not install Qt 5.10 on Debian 9.3 because of SSL problem?!:

Better to wait from Qt.

You can still just download 1.0 vesrion of OpenSSL in the meantime

Mucip

Dear @VRonin,
I tryed before this. But I could not install Qt in this way either.

https://forum.qt.io/topic/82477/ssl-handshake-failed-error-during-installation/8

In anycase. Ok. I will download QpenSSL from here https://www.openssl.org/source/openssl-1.0.2n.tar.gz
and install again.

I will inform you about result...

Regards,
Mucip:)

Mucip

.Hi,
Yes. I remove openssl 1.1 and install openssl 1.0 as said.
Now I started to install Qt 9.10...

Thanks...

Regards,
Mucip:)