unable to run optimizeCbModel with error of "unrecongnized field name "dual"

[blai1989]

I changed to a new computer and reinstalled the cobratoolbox. The solver and so on were fine after checking with initCobraToolbox. Then I was trying to continue the work leftover for some FBA analysis, and the system returned with the following error message which I never met before:

                    Unrecognized field name "dual".

                    Error in optimizeCbModel (line 726)
                    if isempty(solution.dual)

Apart from the below, I also tried to solver the issue with some colleagues here next doors, but they also had no clue of why this happened.

May I please ask if you can help to give some advice to solve this problem?

Thanks very much!

Best regards,
Bin

I hereby confirm that I have:

• Tried to solve the issue on my own
• Retried to run my code with the latest version of The COBRA Toolbox
• Checked that a similar issue has not already been opened

(Note: You may replace [ ] with [X] to check the box)

[rmtfleming]

What solver are you using? Try replacing that line with: if ~isfield(solution,'dual') || isempty(solution.dual) primalOnlyFlag=1; end

…

On Tue, 4 Oct 2022 at 14:43, blai ***@***.***> wrote: I changed to a new computer and reinstalled the cobratoolbox. The solver and so on were fine after checking with initCobraToolbox. Then I was trying to continue the work leftover for some FBA analysis, and the system returned with the following error message which I never met before: Unrecognized field name "dual". Error in optimizeCbModel (line 726) if isempty(solution.dual) Apart from the below, I also tried to solver the issue with some colleagues here next doors, but they also had no clue of why this happened. May I please ask if you can help to give some advice to solve this problem? Thanks very much! Best regards, Bin *I hereby confirm that I have:* - Tried to solve the issue on my own - Retried to run my code with the latest version of The COBRA Toolbox - Checked that a similar issue has not already been opened *(Note: You may replace [ ] with [X] to check the box)* — Reply to this email directly, view it on GitHub <#2047>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAQMEOQPF7L5UJOMRQMCKE3WBQX6BANCNFSM6AAAAAAQ4S3LJQ> . You are receiving this because you are subscribed to this thread.Message ID: ***@***.***>

-- -- Mr. Ronan MT Fleming B.V.M.S. Dip. Math. Ph.D. ---------------------------------------------------------------------------- Associate Professor, School of Medicine, National University of Ireland, Galway. & Assistant Professor, Division of Systems Biomedicine and Pharmacology, Leiden Academic Centre for Drug Research, Faculty of Science, Leiden University. https://www.universiteitleiden.nl/en/staffmembers/ronan-fleming ---------------------------------------------------------------------------- Peer-reviewed publications: https://goo.gl/FZPG23 Mobile: +353 852 109 806 Skype: ronan.fleming ---------------------------------------------------------------------------- (This message is confidential and may contain privileged information. It is intended for the named recipient only. If you receive it in error please notify me and permanently delete the original message and any copies.)

[blai1989]

Dear Prof. Fleming, Thanks very much! I am using Gurobi. The problem is solved after I replace with the code you sent. Thanks very much again. That helps me a lot. Cheers, Bin

…

----------- Dr. Bin Lai BMBF junior research group leader of Biophotovoltaics Department of Solar Materials Helmholtz Centre for Environmental Research GmbH - UFZ On Fri, Oct 7, 2022 at 10:11 AM Ronan M.T. Fleming ***@***.***> wrote:

What solver are you using? Try replacing that line with: if ~isfield(solution,'dual') || isempty(solution.dual) primalOnlyFlag=1; end On Tue, 4 Oct 2022 at 14:43, blai ***@***.***> wrote: > I changed to a new computer and reinstalled the cobratoolbox. The solver > and so on were fine after checking with initCobraToolbox. Then I was trying > to continue the work leftover for some FBA analysis, and the system > returned with the following error message which I never met before: > > Unrecognized field name "dual". > > Error in optimizeCbModel (line 726) > if isempty(solution.dual) > > Apart from the below, I also tried to solver the issue with some > colleagues here next doors, but they also had no clue of why this happened. > > May I please ask if you can help to give some advice to solve this problem? > > Thanks very much! > > Best regards, > Bin > > *I hereby confirm that I have:* > > - Tried to solve the issue on my own > - Retried to run my code with the latest version of The COBRA Toolbox > - Checked that a similar issue has not already been opened > > *(Note: You may replace [ ] with [X] to check the box)* > > — > Reply to this email directly, view it on GitHub > <#2047>, or unsubscribe > < https://github.com/notifications/unsubscribe-auth/AAQMEOQPF7L5UJOMRQMCKE3WBQX6BANCNFSM6AAAAAAQ4S3LJQ > > . > You are receiving this because you are subscribed to this thread.Message > ID: ***@***.***> > -- -- Mr. Ronan MT Fleming B.V.M.S. Dip. Math. Ph.D. ---------------------------------------------------------------------------- Associate Professor, School of Medicine, National University of Ireland, Galway. & Assistant Professor, Division of Systems Biomedicine and Pharmacology, Leiden Academic Centre for Drug Research, Faculty of Science, Leiden University. https://www.universiteitleiden.nl/en/staffmembers/ronan-fleming ---------------------------------------------------------------------------- Peer-reviewed publications: https://goo.gl/FZPG23 Mobile: +353 852 109 806 Skype: ronan.fleming ---------------------------------------------------------------------------- (This message is confidential and may contain privileged information. It is intended for the named recipient only. If you receive it in error please notify me and permanently delete the original message and any copies.) — Reply to this email directly, view it on GitHub <#2047 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AKTQF2RFLT3PTGVXIICHOA3WB7LMFANCNFSM6AAAAAAQ4S3LJQ> . You are receiving this because you authored the thread.Message ID: ***@***.***>