diff --git a/bolt/include/bolt/Utils/Utils.h b/bolt/include/bolt/Utils/Utils.h
--- a/bolt/include/bolt/Utils/Utils.h
+++ b/bolt/include/bolt/Utils/Utils.h
@@ -27,6 +27,8 @@
   TempList.swap(List);
 }
 
+Error make_string_error(const Twine &Message);
+
 void report_error(StringRef Message, std::error_code EC);
 
 void report_error(StringRef Message, Error E);
diff --git a/bolt/lib/Profile/YAMLProfileReader.cpp b/bolt/lib/Profile/YAMLProfileReader.cpp
--- a/bolt/lib/Profile/YAMLProfileReader.cpp
+++ b/bolt/lib/Profile/YAMLProfileReader.cpp
@@ -255,14 +255,11 @@
 
   // Sanity check.
   if (YamlBP.Header.Version != 1)
-    return make_error<StringError>(
-        Twine("cannot read profile : unsupported version"),
-        inconvertibleErrorCode());
+    return make_string_error(Twine("cannot read profile: unsupported version"));
 
   if (YamlBP.Header.EventNames.find(',') != StringRef::npos)
-    return make_error<StringError>(
-        Twine("multiple events in profile are not supported"),
-        inconvertibleErrorCode());
+    return make_string_error(
+        Twine("multiple events in profile are not supported"));
 
   // Match profile to function based on a function name.
   buildNameMaps(BC.getBinaryFunctions());
diff --git a/bolt/lib/Rewrite/MachORewriteInstance.cpp b/bolt/lib/Rewrite/MachORewriteInstance.cpp
--- a/bolt/lib/Rewrite/MachORewriteInstance.cpp
+++ b/bolt/lib/Rewrite/MachORewriteInstance.cpp
@@ -118,9 +118,8 @@
 
   if (ProfileReader) {
     // Already exists
-    return make_error<StringError>(
-        Twine("multiple profiles specified: ") + ProfileReader->getFilename() +
-        " and " + Filename, inconvertibleErrorCode());
+    return make_string_error(Twine("multiple profiles specified: ") +
+                             ProfileReader->getFilename() + " and " + Filename);
   }
 
   ProfileReader = std::make_unique<DataReader>(Filename);
diff --git a/bolt/lib/Rewrite/RewriteInstance.cpp b/bolt/lib/Rewrite/RewriteInstance.cpp
--- a/bolt/lib/Rewrite/RewriteInstance.cpp
+++ b/bolt/lib/Rewrite/RewriteInstance.cpp
@@ -375,10 +375,8 @@
 
   if (ProfileReader) {
     // Already exists
-    return make_error<StringError>(Twine("multiple profiles specified: ") +
-                                       ProfileReader->getFilename() + " and " +
-                                       Filename,
-                                   inconvertibleErrorCode());
+    return make_string_error(Twine("multiple profiles specified: ") +
+                             ProfileReader->getFilename() + " and " + Filename);
   }
 
   // Spawn a profile reader based on file contents.
@@ -3108,9 +3106,8 @@
               JITEvaluatedSymbol(I->getAddress(), JITSymbolFlags());
           continue;
         }
-        OnResolved(make_error<StringError>(
-            "Symbol not found required by runtime: " + Symbol,
-            inconvertibleErrorCode()));
+        OnResolved(make_string_error("Symbol not found required by runtime: " +
+                                     Symbol));
         return;
       }
       OnResolved(std::move(AllResults));
diff --git a/bolt/lib/Utils/Utils.cpp b/bolt/lib/Utils/Utils.cpp
--- a/bolt/lib/Utils/Utils.cpp
+++ b/bolt/lib/Utils/Utils.cpp
@@ -19,6 +19,10 @@
 namespace llvm {
 namespace bolt {
 
+Error make_string_error(const Twine &Message) {
+  return make_error<StringError>(Message, inconvertibleErrorCode());
+}
+
 void report_error(StringRef Message, std::error_code EC) {
   assert(EC);
   errs() << "BOLT-ERROR: '" << Message << "': " << EC.message() << ".\n";