Hi Brian,

I do not believe there is anything needed to do to uninstall J8x.

I get a similar error as you get trying to run J806 jqt.
   JVERSION
Engine: j806/j64/linux
Release: commercial/2017-11-06T09:54:01
Library: 8.06.09
Platform: Linux 64
Installer: J806 install

On Centos 7.4:

[bin]$ ./jqt
"/home/me/Downloads/j64-806/bin/libjqt"
"could not resolve: state_run:

Cannot load library /home/me/Downloads/j64-806/bin/libjqt: (/lib64/libstdc++.so.6: version `GLIBCXX_3.4.20' not found (required by /home/me/Downloads/j64-806/bin/libjqt.so))"

ldd confirmed this:

[bin]$ ldd libjqt.so
./libjqt.so: /lib64/libstdc++.so.6: version `GLIBCXX_3.4.20' not found (required by ./libjqt.so)

The fix for me was to rebuild jqt from the current sources on my Centos 7.3 system. This creates a runnable jqt and libjqt.so. It complains about needing to be upgraded, but if I ignore that, it seems to work fine.

Good luck,
David Mitchell


On 1/1/2018 09:41, Brian Bambrough wrote:
I am running Linux Mint 18 Sarah 64-bit with MATE 1.14.1.  My default browser is Firefox Quantum.

Some months ago I tried to install J8.05.  I got the console to work but jqt just returned an error message.

Recently, I decided to try again with version J8.06.  First, I tried to uninstall J8.05.  I did a Google search for "uninstall" in domain www.jsoftware.com.  I found instructions to uninstall previous versions, but nothing for the current architecture.  I did what I could by hand.

Next, I installed J8.06.  Again, ijconsole worked fine but jqt returned the error message:

"libjqt.so.8.05"
"could not resolve: state_run:

Cannot load library libjqt.so.8.05: (libjqt.so.8.05: cannot open shared object file: No such file or directory)"

I would greatly appreciate help to get jqt running.

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