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diff --git a/include/jsoncons_ext/cbor/cbor_error.hpp b/include/jsoncons_ext/cbor/cbor_error.hpp
new file mode 100644
index 0000000..a7a6626
--- /dev/null
+++ b/include/jsoncons_ext/cbor/cbor_error.hpp
@@ -0,0 +1,105 @@
+/// Copyright 2018 Daniel Parker
+// Distributed under the Boost license, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+// See https://github.com/danielaparker/jsoncons for latest version
+
+#ifndef JSONCONS_CBOR_CBOR_ERROR_HPP
+#define JSONCONS_CBOR_CBOR_ERROR_HPP
+
+#include <system_error>
+#include <jsoncons/config/jsoncons_config.hpp>
+#include <jsoncons/json_exception.hpp> // jsoncons::ser_error
+
+namespace jsoncons { namespace cbor {
+
+enum class cbor_errc
+{
+    success = 0,
+    unexpected_eof,
+    source_error,
+    invalid_decimal_fraction,
+    invalid_bigfloat,
+    invalid_utf8_text_string,
+    too_many_items,
+    too_few_items,
+    number_too_large,
+    stringref_too_large,
+    max_nesting_depth_exceeded,
+    unknown_type,
+    illegal_chunked_string
+};
+
+class cbor_error_category_impl
+   : public std::error_category
+{
+public:
+    const char* name() const noexcept override
+    {
+        return "jsoncons/cbor";
+    }
+    std::string message(int ev) const override
+    {
+        switch (static_cast<cbor_errc>(ev))
+        {
+            case cbor_errc::unexpected_eof:
+                return "Unexpected end of file";
+            case cbor_errc::source_error:
+                return "Source error";
+            case cbor_errc::invalid_decimal_fraction:
+                return "Invalid decimal fraction";
+            case cbor_errc::invalid_bigfloat:
+                return "Invalid bigfloat";
+            case cbor_errc::invalid_utf8_text_string:
+                return "Illegal UTF-8 encoding in text string";
+            case cbor_errc::too_many_items:
+                return "Too many items were added to a CBOR map or array of known length";
+            case cbor_errc::too_few_items:
+                return "Too few items were added to a CBOR map or array of known length";
+            case cbor_errc::number_too_large:
+                return "Number exceeds implementation limits";
+            case cbor_errc::stringref_too_large:
+                return "stringref exceeds stringref map size";
+            case cbor_errc::max_nesting_depth_exceeded:
+                return "Data item nesting exceeds limit in options";
+            case cbor_errc::unknown_type:
+                return "An unknown type was found in the stream";
+            case cbor_errc::illegal_chunked_string:
+                return "An illegal type was found while parsing an indefinite length string";
+            default:
+                return "Unknown CBOR parser error";
+        }
+    }
+};
+
+inline
+const std::error_category& cbor_error_category()
+{
+  static cbor_error_category_impl instance;
+  return instance;
+}
+
+inline 
+std::error_code make_error_code(cbor_errc e)
+{
+    return std::error_code(static_cast<int>(e),cbor_error_category());
+}
+
+
+#if !defined(JSONCONS_NO_DEPRECATED)
+
+JSONCONS_DEPRECATED_MSG("Instead, use ser_error") typedef ser_error cbor_error;
+JSONCONS_DEPRECATED_MSG("Instead, use ser_error") typedef ser_error cbor_decode_error;
+JSONCONS_DEPRECATED_MSG("Instead, use ser_error") typedef ser_error cbor_reader_errc;
+#endif
+
+}}
+
+namespace std {
+    template<>
+    struct is_error_code_enum<jsoncons::cbor::cbor_errc> : public true_type
+    {
+    };
+}
+
+#endif