Scilab, backdoor error, octave conflict

I installed scilab.6.0.0 and backdoor fromscilab website (which I could not find it from Application>Module maneger>atom>Technical). I moved the backdoor file my home and from scilab command line I installed it

-->atomsInstall('/home/user/BackDoor_0.2_5.5.bin.x86_64.linux.tar.gz')

Even though, it installed backdoor successfully, when I restart the scilab I got this error message with backdoor

Start Toolbox BackDoor
    Load macros
atomsLoad: An error occurred while loading 'BackDoor-0.2':
    lib: Old binary lib detected. Please recompile it for Scilab 6.

As I understand I need to update the library, but I don't know how? Would sb tell me explicitly (because I am a newbie user of scilab) how can I get over the error? at the and I try to connect octave and scilab and when I try to run a demo script at octave I get also this error

>> sci_sim_example
Scilab connection failed

FYI: I already installed sci_cosim package (after I downloaded the package, I write to octave prompt >>pkg install sci_cosim_0.1.3.tar.gz), and I load it before running the script.

How can I recompile the lib: Old binary lib detected

Thank you so much for your help in advance

Solution

Here's what worked for me.

Download Scilab 5.5.2 (link for Linux 64bit version)
Extract the .tar.gz file in your preferred system location to install it there. Generally, my preferred location to extract / install self-contained packages is inside /opt .

You can extract the .tar.gz file using your filebrowser's graphical facilities, or on the command line; if /opt is owned by root (which it usually is) you may need to change ownership after extraction. E.g. your installation might look something like this:
```
cd /opt
sudo wget http://www.scilab.org/download/5.5.2/scilab-5.5.2.bin.linux-x86_64.tar.gz
sudo tar -xvzf ./scilab-5.5.2.bin.linux-x86_64.tar.gz
sudo rm scilab-5.5.2.bin.linux-x86_64.tar.gz
sudo chown $USER ./scilab-5.5.2 -R
```
Launch scilab by typing
```
/opt/scilab-5.5.2/bin/scilab &
```
in your terminal.
Once scilab is launched, go to Applications->Module Manager ATOMS. In the new window that comes up, click on All modules -> BackDoor -> Install. You should get a message saying "Installation done, please restart SciLab".
Exit Scilab, and launch it again from the terminal. If you see a message:

atomsLoad: An error occurred while loading 'BackDoor-0.2': File "/opt/scilab-5.5.2/share/scilab/contrib/BackDoor/0.2/etc/backdoor.start" does not exist. then type the following commands in your terminal to rename the affected files:
```
cd /opt/scilab-5.5.2/share/scilab/contrib/BackDoor/0.2/etc/
mv BackDoor.start backdoor.start
mv BackDoor.quit  backdoor.quit
```
Restart SciLab again. Hopefully this time it will work and SciLab will inform you that BackDoor is listening for connections at a certain port.

PS. Also note that from the octave side of things, the -auto option is no longer accepted when you perform a pkg install. You will need to load the sockets and sci_cosim packages manually each time you want to use this.