Originally posted by: mshell

Here is a comment from a customer evaluating Cplex.

 

Whenever I try running one of the examples in the OPL IDE, however, it says "Launching <model name> Basic Configuration has encountered a problem. Cannot connect to solving process (communication server)."

Does anyone have experience with this behavior?

 

thanks

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hi

can you try to remove the workspace

C:\Users\IBM_ADMIN\AppData\Roaming\IBM\ILOG\CPLEX_Studio125\workspace ?

regards

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#OPLusingCPLEXOptimizer

Originally posted by: J2FH_Nicolas_Albarello

I am using Community Edition on Windows and I have exactly the same problem.

Attached is the stack trace.

Regards,

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#OPLusingCPLEXOptimizer

Hi,

have you tried to delete the workspace ?

Can you try oplide -clean in command line ?

regards

#DecisionOptimization
#OPLusingCPLEXOptimizer

Originally posted by: J2FH_Nicolas_Albarello

Hi,

It did not work.

I tried on another machine on which I am logged as admin and it works so I believe it has something to do with access rights.

Regards,

 

Nicolas

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Hi,

https://www-01.ibm.com/support/knowledgecenter/mobile/#!/SSSA5P_12.6.3/ilog.odms.studio.help/Optimization_Studio/topics/COS_installing.html

on your laptop have you installed as an administrator ?

regards

#DecisionOptimization
#OPLusingCPLEXOptimizer

Originally posted by: NickLosee

Hello, 

I am using 12.7 and have been receiving an unusual error:

As far as I know I installed it as admin. 

I have tried:

- updating my version from 12.6 to the latest of 12.7

- making sure I am logged in as admin

Not sure what to try next

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#OPLusingCPLEXOptimizer

Originally posted by: NickLosee

Hello, 

I am using 12.7 and have been receiving an unusual error:

As far as I know I installed it as admin. 

I have tried:

- updating my version from 12.6 to the latest of 12.7

- making sure I am logged in as admin

Not sure what to try next

#DecisionOptimization
#OPLusingCPLEXOptimizer

Hi,

can you try to run your model with oplrun (command line) ?

regards

#DecisionOptimization
#OPLusingCPLEXOptimizer

Originally posted by: NickLosee

Just tried running it with command line and I believe it worked. It would take some getting used to always running things this way.

I'd prefer fixing the IDE rather than always running it externally. Any ideas about re-connecting the solving process? Thanks!   

 

 

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#OPLusingCPLEXOptimizer

Hi,

can you try in collocated mode ?

http://www-01.ibm.com/support/docview.wss?uid=swg21977459

regards

#DecisionOptimization
#OPLusingCPLEXOptimizer

Originally posted by: NickLosee

I made a .txt file called oplide.options here:

     C:\Program Files\IBM\ILOG\CPLEX_Studio127\opl\oplide\oplide.options

containing:

     ilog.odms.ide.core/forcecollocated=true

Then in the command window tried to start IDE using the collocated mode with: 

     C:\Users\nick>oplide -debug oplide.options

Which it then begins to successfully start IDE, yet in the window it also says 

     Debug options:
         file:/C:/Users/nick/oplide.options not found

When I try and place oplide.options in file:/C:/Users/nick/oplide.options an error occurs. 

What folder should I place it in specifically for the debug to find the oplide.options .txt file?

 

 

#DecisionOptimization
#OPLusingCPLEXOptimizer

Hi,

can you try

oplide -debug c:/oplide.options

with oplide.options in c: ?

On my machine I get

Debug options:
    file:/c:/oplide.options loaded

regards

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#OPLusingCPLEXOptimizer

Originally posted by: NickLosee

Hi, 

Debug options:
    file:/c:/oplide.options loaded

Is what I see now. It opens IDE but I still receive the message saying it can't connect to the solving process.

 

 

#DecisionOptimization
#OPLusingCPLEXOptimizer

Ok then could you try to instal vcredist : http://www-01.ibm.com/support/docview.wss?uid=swg21674672

?

regards

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#OPLusingCPLEXOptimizer

Originally posted by: NickLosee

I downloaded vcredist. If I have been using IDE 12.7 is it okay to download 12.6.3? I ran vcredist and it said it completed. 

 I still receive the message saying it can't connect to the solving process.

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Originally posted by: NickLosee

#DecisionOptimization
#OPLusingCPLEXOptimizer

Hi,

you should open a support ticket : http://www-01.ibm.com/support/docview.wss?uid=swg21507643

regards

#DecisionOptimization
#OPLusingCPLEXOptimizer

Originally posted by: AugustoMorais

Hi Everybody.

 

I had the same issue running IBM Cplex Studio (12.7.1) on Arch Linux: "Cannot connect to solving process". Fortunately with the comments here, all issues has been fixed. I decided summarize all steps that I made to fix it: 

 

Add some IBM Cplex vars in env PATH. In my case is .zshrc maybe you use bash, csh...: 

 

export PATH=/opt/ibm/ILOG/CPLEX_Studio1271/cplex/bin/x86-64_linux:/opt/ibm/ILOG/CPLEX_Studio1271/opl/oplide:/opt/ibm/ILOG/CPLEX_Studio1271/opl/bin/x86-64_linux

LD_LIBRARY_PATH=/opt/ibm/ILOG/CPLEX_Studio1271/opl/bin/x86-64_linux
export LD_LIBRARY_PATH

 

 

 

Create the oplide.options file on /opt/ibm/ILOG/CPLEX_Studio1271/opl/oplide/
 

ilog.odms.ide.core/forcecollocated=true

 

Create a custom desktop entry (/HOME/.local/share/applications/oplide.desktop) to run with rofi launcher (you can use the gnome launcher, xfce...):

 

[Desktop Entry]

Type=Application
Version=12.7.1

# The name of the application
Name=IBM Ilog CPLEX Optimization Studio

# A comment which can/will be used as a tooltip

# The path to the folder in which the executable is run
Path=/opt/ibm/ILOG/CPLEX_Studio1271/opl/oplide

# The executable of the application, possibly with arguments.
Exec=/opt/ibm/ILOG/CPLEX_Studio1271/opl/oplide/oplide -debug /opt/ibm/ILOG/CPLEX_Studio1271/opl/oplide/oplide.options

# The name of the icon that will be used to display this entry
Icon=

# Describes whether this application needs to be run in a terminal or not
Terminal=false

# Describes the categories in which this entry should be shown
Categories=Education;Languages;Java;

 

Thanks for all guys!

 

 

Augusto Morais

 

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