Error after removing remake

[hemamipour]

Changing:

function prob_func(prob, i, repeat)
rlon = deg2rad(puffs[i][1])
rlat = deg2rad(puffs[i][2])
rlev = puffs[i][3]

u0 = [
    sys.Puff₊lon => rlon,
    sys.Puff₊lat => rlat,
    sys.Puff₊lev => rlev,
    sys.ElementalCarbon₊EC => ec_0
]

p = [
    sys.GaussianKC₊Δz => 100,
]

ts = (tspan[1] + floor((i-1) / puff_release_per_interval) * puff_release_interval, tspan[2])
remake(prob; u0 = u0, tspan = ts, p = p)

end

to:

set_params = setp(prob,[sys.GaussianKC₊Δz])
set_u0 = setsym(prob, [sys.Puff₊lon, sys.Puff₊lat, sys.Puff₊lev, sys.ElementalCarbon₊EC,])

function prob_func(prob, i, repeat)
rlon = deg2rad(puffs[i][1])
rlat = deg2rad(puffs[i][2])
rlev = puffs[i][3]

ts = (tspan[1] + floor((i-1) / puff_release_per_interval) * puff_release_interval, tspan[2])
set_params(prob, (100))
set_u0(prob, (rlon, rlat, rlev, ec_0))
prob, ts

end

results in this error:

ERROR: UndefVarError: setp not defined in Main
Suggestion: check for spelling errors or missing imports.
Hint: a global variable of this name may be made accessible by importing SymbolicIndexingInterface in the current active module Main
Stacktrace:
[1] top-level scope