DimensionMismatch error

Pumas issues
1

Dear All,
ERROR: LoadError: DimensionMismatch: matrix is not square.

when trying to run the param block of model block, the above error is appearing. Any strategies to resolve the same?

checked multiple times for error in other related blocks and codes. Its clean.
Thanks.

2

Please include the model definition. Then we might be able to identify the issue.

3 
PK1 = @model begin
    @param begin
        tvka ∈ RealDomain(; lower = 0.01)
        tvcl ∈ RealDomain(; lower = 0.01)
        tvvc ∈ RealDomain(; lower = 0.01)
        tvlag ∈ RealDomain(; lower = 0.01)
        Ω ∈ PDiagDomain(3)
        σ_prop ∈ RealDomain(; lower = 0.01)
    end
    @random begin
        η ~ MvNormal(Ω)
    end
    @covariates begin
        Treatment
    end
    @pre begin
        Ka = tvka * exp(η[1])
        CL = tvcl * exp(η[2])
        Vc = tvvc * exp(η[3])
    end
    @dosecontrol begin
       lags = (Depot = tvlag)
    end
    @dynamics begin
      Depots1Central1  
    end
    @derived begin
        cp = @. Central / Vc 
        Conc ~ @. Normal(cp, cp * σ_prop)
    end
end
4

Thanks. Could you also share the complete error message including the stack trace?
Also,

Please make sure to include a semicolon or a comma when writing named tuples, i.e. either

lags = (; Depot = tvlag)

or

lags = (Depot = tvlag,)