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diff --git a/include/jsoncons_ext/jmespath/jmespath_error.hpp b/include/jsoncons_ext/jmespath/jmespath_error.hpp
new file mode 100644
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+++ b/include/jsoncons_ext/jmespath/jmespath_error.hpp
@@ -0,0 +1,215 @@
+/// Copyright 2020 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_JMESPATH_JMESPATH_ERROR_HPP
+#define JSONCONS_JMESPATH_JMESPATH_ERROR_HPP
+
+#include <jsoncons/json_exception.hpp>
+#include <system_error>
+
+namespace jsoncons { namespace jmespath {
+
+    class jmespath_error : public std::system_error, public virtual json_exception
+    {
+        std::size_t line_number_;
+        std::size_t column_number_;
+        mutable std::string what_;
+    public:
+        jmespath_error(std::error_code ec)
+            : std::system_error(ec), line_number_(0), column_number_(0)
+        {
+        }
+        jmespath_error(std::error_code ec, const std::string& what_arg)
+            : std::system_error(ec, what_arg), line_number_(0), column_number_(0)
+        {
+        }
+        jmespath_error(std::error_code ec, std::size_t position)
+            : std::system_error(ec), line_number_(0), column_number_(position)
+        {
+        }
+        jmespath_error(std::error_code ec, std::size_t line, std::size_t column)
+            : std::system_error(ec), line_number_(line), column_number_(column)
+        {
+        }
+        jmespath_error(const jmespath_error& other) = default;
+
+        jmespath_error(jmespath_error&& other) = default;
+
+        const char* what() const noexcept override
+        {
+            if (what_.empty())
+            {
+                JSONCONS_TRY
+                {
+                    what_.append(std::system_error::what());
+                    if (line_number_ != 0 && column_number_ != 0)
+                    {
+                        what_.append(" at line ");
+                        what_.append(std::to_string(line_number_));
+                        what_.append(" and column ");
+                        what_.append(std::to_string(column_number_));
+                    }
+                    else if (column_number_ != 0)
+                    {
+                        what_.append(" at position ");
+                        what_.append(std::to_string(column_number_));
+                    }
+                    return what_.c_str();
+                }
+                JSONCONS_CATCH(...)
+                {
+                    return std::system_error::what();
+                }
+            }
+            else
+            {
+                return what_.c_str();
+            }
+        }
+
+        std::size_t line() const noexcept
+        {
+            return line_number_;
+        }
+
+        std::size_t column() const noexcept
+        {
+            return column_number_;
+        }
+    };
+
+enum class jmespath_errc 
+{
+    success = 0,
+    expected_identifier,
+    expected_index,
+    expected_A_Za_Z_,
+    expected_rbracket,
+    expected_rparen,
+    expected_rbrace,
+    expected_colon,
+    expected_dot,
+    expected_or,
+    expected_and,
+    expected_multi_select_list,
+    invalid_number,
+    invalid_literal,
+    expected_comparator,
+    expected_key,
+    invalid_argument,
+    unknown_function,
+    invalid_type,
+    unexpected_end_of_input,
+    step_cannot_be_zero,
+    syntax_error,
+    invalid_codepoint,
+    illegal_escaped_character,
+    unbalanced_parentheses,
+    unbalanced_braces,
+    invalid_arity,
+    identifier_not_found,
+    expected_index_expression,
+    unknown_error 
+};
+
+class jmespath_error_category_impl
+   : public std::error_category
+{
+public:
+    const char* name() const noexcept override
+    {
+        return "jsoncons/jmespath";
+    }
+    std::string message(int ev) const override
+    {
+        switch (static_cast<jmespath_errc>(ev))
+        {
+            case jmespath_errc::expected_identifier:
+                return "Expected identifier";
+            case jmespath_errc::expected_index:
+                return "Expected index";
+            case jmespath_errc::expected_A_Za_Z_:
+                return "Expected A-Z, a-z, or _";
+            case jmespath_errc::expected_rbracket:
+                return "Expected ]";
+            case jmespath_errc::expected_rparen:
+                return "Expected )";
+            case jmespath_errc::expected_rbrace:
+                return "Expected }";
+            case jmespath_errc::expected_colon:
+                return "Expected :";
+            case jmespath_errc::expected_dot:
+                return "Expected \".\"";
+            case jmespath_errc::expected_or:
+                return "Expected \"||\"";
+            case jmespath_errc::expected_and:
+                return "Expected \"&&\"";
+            case jmespath_errc::expected_multi_select_list:
+                return "Expected multi-select-list";
+            case jmespath_errc::invalid_number:
+                return "Invalid number";
+            case jmespath_errc::invalid_literal:
+                return "Invalid literal";
+            case jmespath_errc::expected_comparator:
+                return "Expected <, <=, ==, >=, > or !=";
+            case jmespath_errc::expected_key:
+                return "Expected key";
+            case jmespath_errc::invalid_argument:
+                return "Invalid argument type";
+            case jmespath_errc::unknown_function:
+                return "Unknown function";
+            case jmespath_errc::invalid_type:
+                return "Invalid type";
+            case jmespath_errc::unexpected_end_of_input:
+                return "Unexpected end of jmespath input";
+            case jmespath_errc::step_cannot_be_zero:
+                return "Slice step cannot be zero";
+            case jmespath_errc::syntax_error:
+                return "Syntax error";
+            case jmespath_errc::invalid_codepoint:
+                return "Invalid codepoint";
+            case jmespath_errc::illegal_escaped_character:
+                return "Illegal escaped character";
+            case jmespath_errc::unbalanced_parentheses:
+                return "Unbalanced parentheses";
+            case jmespath_errc::unbalanced_braces:
+                return "Unbalanced braces";
+            case jmespath_errc::invalid_arity:
+                return "Function called with wrong number of arguments";
+            case jmespath_errc::identifier_not_found:
+                return "Identifier not found";
+            case jmespath_errc::expected_index_expression:
+                return "Expected index expression";
+            case jmespath_errc::unknown_error:
+            default:
+                return "Unknown jmespath parser error";
+        }
+    }
+};
+
+inline
+const std::error_category& jmespath_error_category()
+{
+  static jmespath_error_category_impl instance;
+  return instance;
+}
+
+inline 
+std::error_code make_error_code(jmespath_errc result)
+{
+    return std::error_code(static_cast<int>(result),jmespath_error_category());
+}
+
+}}
+
+namespace std {
+    template<>
+    struct is_error_code_enum<jsoncons::jmespath::jmespath_errc> : public true_type
+    {
+    };
+}
+
+#endif