Update src/nlsolve/nlsolve.jl

Author: ChrisRackauckas

src/nlsolve/nlsolve.jl

@@ -104,7 +104,7 @@ function nlsolve!(nlsolver::NL, integrator::DiffEqBase.DEIntegrator,
         η = DiffEqBase.value(θ / (1 - θ))
         # don't trust θ for non-adaptive on first iter because the solver doesn't provide feedback
         # for us to know whether our previous nlsolve converged sufficiently well
-        check_η_convergance = (iter > 1 || (isnewton(nlsolver) && isadaptive(solver)))
+        check_η_convergance = (iter > 1 || (isnewton(nlsolver) && isadaptive(nlsolver)))
         if (iter == 1 && ndz < 1e-5) ||
            (check_η_convergance && η >= zero(η) && η * ndz < κ)
             nlsolver.status = Convergence