Problems with code reproduction in tutorials

[lishijia13579]

Hi! I am trying to repeat the code from the BacArena tutorial, but I am getting results that don't match those in the tutorial after I set upt the enviroment. For example, after setting up the arena (with the code unchanged), the output information is displayed:
`
[1] "substances with 6562.5 fmol per gridcell:"
[1] "EX_glc(e)"

[1] "substances with 625000 fmol per gridcell:"
[1] "EX_co2(e)" "EX_h(e)" "EX_h2o(e)" "EX_nh4(e)" "EX_o2(e)" "EX_pi(e)"
`
And the example result in the tutorial is as follows:

`
[1] "substances with 322.5 fmol per gridcell:"
[1] "EX_glc(e)"

[1] "substances with 1000 fmol per gridcell:"
[1] "EX_co2(e)" "EX_h(e)" "EX_h2o(e)" "EX_nh4(e)" "EX_o2(e)" "EX_pi(e)"
`
Obviously the amount of substrates in each gridcell is very different from the example result, what could be the reason for this? Is it possibly due to the version of GLPK (mine is GLPK ver. 5.0)?

[lishijia13579]

Another question.
When I performed futher operations in the tutorial, I found that I got the growth curve of ecoli_core_model in line with the results in the tutorial. However, the curves for the changes of substrates were completely different, I got a plot that with all horizontal straight lines, and I further observed the result of the change in each substrate using the getSubHist() function, I found the the initial amount of products were 0 and gradually increased during the simulation, while the initial amount of the substrates except glucose was 250000000, so even if the quantity decreased, the change could not be observed due to the order of magnitude difference with products. In addition, the initial amount of glucose was different from all other substrates, which is 2625000, and there is also an order of magnitude difference. What is the reason for these significant differences from the results in the tutorial?
Thank you!