diff --git a/src/DynareModel.jl b/src/DynareModel.jl
index f9d84fd8383fad7bf6b693a02a7bc84b79ede838..651a6bfb50aea3960a60f37f50a311884ed140d8 100644
--- a/src/DynareModel.jl
+++ b/src/DynareModel.jl
@@ -55,6 +55,7 @@ struct AuxVars
     orig_lead_lag::Int
     eq_nbr::Int
     orig_expr::String
+    unary_op::String
 end
 
 struct PredVars
diff --git a/src/DynareSolvers.jl b/src/DynareSolvers.jl
index 038f3e6b36985b54571281325546688d476be1a4..1f83cc538eee96b0b2a7194f0cc1aa9ccd10e9dc 100644
--- a/src/DynareSolvers.jl
+++ b/src/DynareSolvers.jl
@@ -189,6 +189,7 @@ function trustregion(f!::Function, j!::Function, x0::Vector{Float64}, factor::Fl
     # Initialize scale parameter.
     scale, scale0 = one(Float64), one(Float64)
     # Newton iterations
+    δ = 0.0
     while iter<=maxiter && info==0
         # Compute columns norm for the Jacobian matrix.
         @inbounds for i=1:n
diff --git a/src/SteadyState.jl b/src/SteadyState.jl
index 6de7f8eb812401d9d540e809647bb70305b8993f..898bdf5241ccfadcda666d26e555591d02659dd0 100644
--- a/src/SteadyState.jl
+++ b/src/SteadyState.jl
@@ -19,6 +19,7 @@ module SteadyState
  # along with Dynare.  If not, see <http://www.gnu.org/licenses/>.
 ##
 
+using LinearAlgebra
 using DynareSolvers
 using Printf
 
@@ -120,7 +121,7 @@ function display_steady_state(model::Model, oo::Output)
         print(aa, "    ", model.endo[i].name, "\t=\t", @sprintf("%.6f", tmp))
         println(aa)
     end
-    print(STDOUT, aa)
+    print(aa)
 end
 
 function display_steady_state(model::Model, oo::Output, ys::Vector{Float64})
@@ -135,7 +136,7 @@ function display_steady_state(model::Model, oo::Output, ys::Vector{Float64})
         print(aa, "    ", model.endo[i].name, "\t=\t", @sprintf("%.6f", tmp))
         println(aa)
     end
-    print(STDOUT, aa)
+    print(aa)
 end
 
 function issteadystate(model::Model, oo::Output, ys::Vector{Float64})
diff --git a/src/solvers/CyclicReduction.jl b/src/solvers/CyclicReduction.jl
index e8da52bb48e8984c65a2802bdc9414e73cf4f523..3a48d8eafd07fba9dfbb8c6faae7e1d8b9791dbb 100644
--- a/src/solvers/CyclicReduction.jl
+++ b/src/solvers/CyclicReduction.jl
@@ -1,5 +1,7 @@
 module CyclicReduction
 
+using LinearAlgebra
+
 import ...DynLinAlg.LinSolveAlgo: LinSolveWS, linsolve_core!
 
 import Base.LinAlg.BLAS: scal!, gemm!