Error in the mgPipe tutorial

[Una Wu]

Hello alls,

I  run the tutorial_mgPipe.mlx file successfully. When I change the abunFilePath='normCoverageReduced.csv' to  abunFilePath='normCoverage.csv' , the error occurs that showed follow:

Error using fluxVariability (line 248)
The FVA could not be run because the model is infeasible or unbounded

Error in buildModelStorage (line 98)
        [minFlux,maxFlux]=fluxVariability(model,0,'max',ex_rxns);

Error in mgPipe (line 101)
    [activeExMets,couplingMatrix]=buildModelStorage(microbeNames, modPath, dietFilePath, adaptMedium,
    includeHumanMets, numWorkers, pruneModels);

Error in initMgPipe (line 187)
[netSecretionFluxes, netUptakeFluxes, Y, modelStats, summary, statistics, modelsOK] = mgPipe(modPath,
abunFilePath, computeProfiles, resPath, dietFilePath, infoFilePath, hostPath, hostBiomassRxn, hostBiomassRxnFlux,
figForm, numWorkers, rDiet, pDiet, lowerBMBound, upperBMBound, includeHumanMets, adaptMedium, pruneModels);
 

the whole code I run as follow:

What should I do to resolve the problem?

Thank you

Sincerely！

Una

[Almut Heinken]

Dear Una,

could you try installing the IBM CPLEX solver and running fastFVA instead of fluxVariability?

Best regards,

Almut

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