diff --git a/src/USER-MESOCNT/pair_mesocnt.cpp b/src/USER-MESOCNT/pair_mesocnt.cpp
index d2c36dec1f..80c72ee2de 100644
--- a/src/USER-MESOCNT/pair_mesocnt.cpp
+++ b/src/USER-MESOCNT/pair_mesocnt.cpp
@@ -489,7 +489,7 @@ void PairMesoCNT::coeff(int narg, char **arg)
   ang = force->angstrom;
   ang_inv = 1.0 / ang;
   if (strcmp(update->unit_style,"lj") == 0) 
-    error->all(FLERR,"mesoCNT does not support lj units");
+    error->all(FLERR,"Pair style mesocnt does not support lj units");
   else if (strcmp(update->unit_style,"real") == 0) eunit = 23.06054966;
   else if (strcmp(update->unit_style,"metal") == 0) eunit = 1.0;
   else if (strcmp(update->unit_style,"si") == 0) eunit = 1.6021765e-19;
@@ -574,9 +574,9 @@ void PairMesoCNT::coeff(int narg, char **arg)
 void PairMesoCNT::init_style()
 {
   if (atom->tag_enable == 0)
-    error->all(FLERR,"Pair style mesoCNT requires atom IDs");
+    error->all(FLERR,"Pair style mesocnt requires atom IDs");
   if (force->newton_pair == 0)
-    error->all(FLERR,"Pair style mesoCNT requires newton pair on");
+    error->all(FLERR,"Pair style mesocnt requires newton pair on");
 
   // need a full neighbor list
 
@@ -591,8 +591,6 @@ void PairMesoCNT::init_style()
 
 double PairMesoCNT::init_one(int i, int j)
 {
-  if (setflag[i][j] == 0) error->all(FLERR,"All pair coeffs are not set");
-
   return cutoff;
 }
 
@@ -825,7 +823,7 @@ void PairMesoCNT::read_file(const char *file, double *data,
   
   FILE *fp = force->open_potential(file);
   if (fp == NULL) {
-    std::string str("Cannot open file ");
+    std::string str("Cannot open mesocnt file ");
     str += file;
     error->one(FLERR,str.c_str());
   }
@@ -955,7 +953,7 @@ void PairMesoCNT::read_file(const char *file, double **data,
   }
   if (syerror) {
     char str[128];
-    sprintf(str,"%d spacings in first column were different\n"
+    sprintf(str,"%d spacings in second column were different\n"
 		  "  from first spacing in pair table ",syerror);
     std::string errstr = str;
     errstr += file;
diff --git a/src/USER-MESOCNT/pair_mesocnt.h b/src/USER-MESOCNT/pair_mesocnt.h
index 2607d14534..99f72ad14b 100644
--- a/src/USER-MESOCNT/pair_mesocnt.h
+++ b/src/USER-MESOCNT/pair_mesocnt.h
@@ -185,3 +185,61 @@ namespace MathExtra {
 
 #endif
 #endif
+
+/* ERROR/WARNING messages:
+
+E: Illegal ... command
+
+Self-explanatory.  Check the input script syntax and compare to the
+documentation for the command.  You can use -echo screen as a
+command-line option when running LAMMPS to see the offending line.
+
+E: Incorrect args for pair coefficients
+
+Self-explanatory.  Check the input script or data file.
+
+E: Pair style mesocnt does not support lj units
+
+Self-explanatory. Specify different unit system using the units 
+command.
+
+E: Pair style mesocnt requires atom IDs
+
+Self-explanatory. Turn on atom IDs using the atom_modify command.
+
+E: Pair style mesocnt requires newton pair on
+
+Self-explanatory. Turn on Newton's third law with the newton command.
+
+E: Cannot open mesocnt file %s
+
+The specified mesocnt potential file cannot be opened. Check that the
+path and name are correct.
+
+E: Premature end of file in pair table %s
+
+The specified mesocnt potential file is shorter than specified. Check
+if the correct file is being used and the right number of data points
+was specified in the pair_style
+
+W: %d of %d lines were incomplete or could not be parsed completely 
+in pair table %s
+
+A number of lines in the specified mesocnt potential file is incomplete
+or in the wrong format. Check the file for errors and missing data.
+
+W: %d spacings in the first column were different from the first spacing
+in the pair table %s
+
+The spacings between x coordinates in the first column of the specified
+mesocnt potential file vary throughout the file. Use a potential file
+with higher precision.
+
+W: %d spacings in second column were different from first 
+spacing in pair table %s
+
+The spacings between y coordinates in the second column of the specified
+mesocnt potential file vary throughout the file. Use a potential file
+with higher precision.
+
+*/