variable raised to power of another variable gives an error

[notesofdabbler]

I am trying a small example of fitting both rate constant and reaction order. So the ODE is of the form
dc/dt = -kc^n. I was trying to code as shown below and it gives an error where I define the derivative.

[pulsipher]

I am unable to replicate the error on the current version v0.5.2. Which version of InfiniteOpt are you running? You can check via the status command in the package manager. General nonlinear expressions like this one require at least version v0.5.

[notesofdabbler]

Thanks. Updating the version fixed it. For some reason, even when I tried update InfiniteOpt it was not updating the version and then I had to install it using the specific version command add [email protected]. Once I did it, the above code worked.