diff --git a/build/source/file_access_actor/file_access_actor.cpp b/build/source/file_access_actor/file_access_actor.cpp
index 68bb0094db17344279c2dfe9146f947d9ba1a65c..fa55c4887680c0337b317fa55c4fef9a904d6221 100644
--- a/build/source/file_access_actor/file_access_actor.cpp
+++ b/build/source/file_access_actor/file_access_actor.cpp
@@ -40,18 +40,24 @@ behavior file_access_actor(stateful_actor<file_access_state>* self,
 
 
       self->state.summa_init_struc = std::make_unique<SummaInitStruc>();
-      int err = self->state.summa_init_struc->allocate(self->state.num_gru);
-      if (err != 0) aout(self) << "ERROR: SummaInitStruc allocation failed\n";
-      err = self->state.summa_init_struc->summa_paramSetup();
-      if (err != 0) aout(self) << "ERROR: SummaInitStruc paramSetup failed\n";
-      err = self->state.summa_init_struc->summa_readRestart();
-      if (err != 0) aout(self) << "ERROR: SummaInitStruc readRestart failed\n";
+      if (self->state.summa_init_struc->allocate(self->state.num_gru) != 0) {
+        aout(self) << "ERROR -- File_Access_Actor: SummaInitStruc allocation failed\n";
+        return -1;
+      }
+      if (self->state.summa_init_struc->summa_paramSetup() != 0) {
+        aout(self) << "ERROR -- File_Access_Actor: SummaInitStruc paramSetup failed\n";
+        return -1;
+      }
+      if (self->state.summa_init_struc->summa_readRestart()!= 0) {
+        aout(self) << "ERROR -- File_Access_Actor: SummaInitStruc readRestart failed\n";
+        return -1;
+      }
       
       // Get the information about the forcing files
       self->state.forcing_files = std::make_unique<forcingFileContainer>();
-      err = self->state.forcing_files->initForcingFiles();
-      if (err != 0) return -1;
+      if (self->state.forcing_files->initForcingFiles() != 0) return -1;
 
+      int err = 0;
       std::unique_ptr<char[]> message(new char[256]);
       fileAccessActor_init_fortran(&self->state.num_steps,
                                    &fa_settings.num_timesteps_in_output_buffer, 
diff --git a/build/source/file_access_actor/summa_init_struc.cpp b/build/source/file_access_actor/summa_init_struc.cpp
index b34b06f78b2286f1a1d230424c6b1b830908c5ad..03d27b121f54d5ade29f69f6393a515f3f3a786d 100644
--- a/build/source/file_access_actor/summa_init_struc.cpp
+++ b/build/source/file_access_actor/summa_init_struc.cpp
@@ -1,5 +1,6 @@
 #include "summa_init_struc.hpp"
 #include <memory>
+#include <iostream>
 
 SummaInitStruc::SummaInitStruc() {}
 
@@ -11,6 +12,7 @@ int SummaInitStruc::allocate(int num_gru) {
   int err = 0;
   std::unique_ptr<char[]> message(new char[256]);
   initialize_init_struc(num_gru, err, &message);
+  if (err != 0) std::cout << message.get() << std::endl;
   return err;
 }
 
@@ -18,6 +20,7 @@ int SummaInitStruc::summa_paramSetup() {
   int err = 0;
   std::unique_ptr<char[]> message(new char[256]);
   paramSetup_fortran(err, &message);
+  if (err != 0) std::cout << message.get() << std::endl;
   return err;
 }
 
@@ -25,6 +28,7 @@ int SummaInitStruc::summa_readRestart() {
   int err = 0;
   std::unique_ptr<char[]> message(new char[256]);
   readRestart_fortran(err, &message);
+  if (err != 0) std::cout << message.get() << std::endl;
   return err;
 }
 
diff --git a/build/source/file_access_actor/summa_init_struc.f90 b/build/source/file_access_actor/summa_init_struc.f90
index a16bdc182b511f3800e913408e12c1f04f1e8819..8291ccb425f1edc85616de1b1850b2bfd774fa77 100644
--- a/build/source/file_access_actor/summa_init_struc.f90
+++ b/build/source/file_access_actor/summa_init_struc.f90
@@ -25,6 +25,9 @@ subroutine initialize_init_struc(num_gru, err, message_r) bind(C, name="initiali
                       indx_meta, &
                       bpar_meta, &
                       bvar_meta
+#ifdef V4_ACTIVE
+  USE globalData,only:lookup_meta
+#endif
   ! statistics metadata structures
   USE globalData,only:statForc_meta, &        ! child metadata for stats
                       statProg_meta, &        ! child metadata for stats
@@ -49,6 +52,9 @@ subroutine initialize_init_struc(num_gru, err, message_r) bind(C, name="initiali
   call f_c_string_ptr(trim(message), message_r)
   allocate(init_struc)
   summaVars: associate(&
+#ifdef V4_ACTIVE  
+    lookupStruct         =>init_struc%lookupStruct         , & ! x%gru(:)%hru(:)%z(:)%var(:)%lookup(:) -- lookup tables
+#endif
     ! statistics structures
     forcStat             => init_struc%forcStat            , & ! x%gru(:)%hru(:)%var(:)%dat -- model forcing data
     progStat             => init_struc%progStat            , & ! x%gru(:)%hru(:)%var(:)%dat -- model prognostic (state) variables
@@ -105,6 +111,9 @@ subroutine initialize_init_struc(num_gru, err, message_r) bind(C, name="initiali
       case('flux'); call allocGlobal(flux_meta,  fluxStruct,  err, cmessage)   ! model fluxes
       case('bpar'); call allocGlobal(bpar_meta,  bparStruct,  err, cmessage)   ! basin-average parameters
       case('bvar'); call allocGlobal(bvar_meta,  bvarStruct,  err, cmessage)   ! basin-average variables
+#ifdef V4_ACTIVE
+      case('lookup'); call allocGlobal(lookup_meta, lookupStruct, err, cmessage) ! lookup tables
+#endif      
       case('deriv'); cycle
       case default; err=20; message='unable to find structure name: '//trim(structInfo(iStruct)%structName)
     end select