diff --git a/error.go b/error.go
index 2e72685..6ca8baa 100644
--- a/error.go
+++ b/error.go
@@ -1,7 +1,6 @@
 package grpc
 
 import (
-	pb "github.com/unistack-org/micro-client-grpc/internal/errors"
 	"github.com/unistack-org/micro/v3/errors"
 	"google.golang.org/grpc/status"
 )
@@ -17,10 +16,6 @@ func microError(err error) error {
 		return verr
 	}
 
-	if verr, ok := err.(*pb.Error); ok {
-		return &errors.Error{Id: verr.Id, Code: verr.Code, Detail: verr.Detail, Status: verr.Status}
-	}
-
 	// grpc error
 	s, ok := status.FromError(err)
 	if !ok {
diff --git a/errors_test.go b/errors_test.go
deleted file mode 100644
index 1a243b4..0000000
--- a/errors_test.go
+++ /dev/null
@@ -1,17 +0,0 @@
-package grpc_test
-
-import (
-	"testing"
-
-	pb "github.com/unistack-org/micro-client-grpc/internal/errors"
-	"google.golang.org/protobuf/types/known/anypb"
-)
-
-func TestErrors(t *testing.T) {
-	any, err := anypb.New(&pb.Error{})
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	t.Logf("cli any: %#+v\n", any)
-}
diff --git a/generate.go b/generate.go
deleted file mode 100644
index 1413b18..0000000
--- a/generate.go
+++ /dev/null
@@ -1,3 +0,0 @@
-package grpc
-
-//go:generate protoc -I./internal/errors -I. --go_out=paths=source_relative:./internal/errors internal/errors/client_errors.proto
diff --git a/internal/errors/client_errors.pb.go b/internal/errors/client_errors.pb.go
deleted file mode 100644
index dfd80ea..0000000
--- a/internal/errors/client_errors.pb.go
+++ /dev/null
@@ -1,179 +0,0 @@
-// Code generated by protoc-gen-go. DO NOT EDIT.
-// versions:
-// 	protoc-gen-go v1.25.0-devel
-// 	protoc        v3.6.1
-// source: client_errors.proto
-
-package errors
-
-import (
-	proto "github.com/golang/protobuf/proto"
-	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
-	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
-	reflect "reflect"
-	sync "sync"
-)
-
-const (
-	// Verify that this generated code is sufficiently up-to-date.
-	_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
-	// Verify that runtime/protoimpl is sufficiently up-to-date.
-	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
-)
-
-// This is a compile-time assertion that a sufficiently up-to-date version
-// of the legacy proto package is being used.
-const _ = proto.ProtoPackageIsVersion4
-
-type Error struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
-	Id     string `protobuf:"bytes,1,opt,name=id,proto3" json:"id,omitempty"`
-	Code   int32  `protobuf:"varint,2,opt,name=code,proto3" json:"code,omitempty"`
-	Detail string `protobuf:"bytes,3,opt,name=detail,proto3" json:"detail,omitempty"`
-	Status string `protobuf:"bytes,4,opt,name=status,proto3" json:"status,omitempty"`
-}
-
-func (x *Error) Reset() {
-	*x = Error{}
-	if protoimpl.UnsafeEnabled {
-		mi := &file_client_errors_proto_msgTypes[0]
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		ms.StoreMessageInfo(mi)
-	}
-}
-
-func (x *Error) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*Error) ProtoMessage() {}
-
-func (x *Error) ProtoReflect() protoreflect.Message {
-	mi := &file_client_errors_proto_msgTypes[0]
-	if protoimpl.UnsafeEnabled && x != nil {
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		if ms.LoadMessageInfo() == nil {
-			ms.StoreMessageInfo(mi)
-		}
-		return ms
-	}
-	return mi.MessageOf(x)
-}
-
-// Deprecated: Use Error.ProtoReflect.Descriptor instead.
-func (*Error) Descriptor() ([]byte, []int) {
-	return file_client_errors_proto_rawDescGZIP(), []int{0}
-}
-
-func (x *Error) GetId() string {
-	if x != nil {
-		return x.Id
-	}
-	return ""
-}
-
-func (x *Error) GetCode() int32 {
-	if x != nil {
-		return x.Code
-	}
-	return 0
-}
-
-func (x *Error) GetDetail() string {
-	if x != nil {
-		return x.Detail
-	}
-	return ""
-}
-
-func (x *Error) GetStatus() string {
-	if x != nil {
-		return x.Status
-	}
-	return ""
-}
-
-var File_client_errors_proto protoreflect.FileDescriptor
-
-var file_client_errors_proto_rawDesc = []byte{
-	0x0a, 0x13, 0x63, 0x6c, 0x69, 0x65, 0x6e, 0x74, 0x5f, 0x65, 0x72, 0x72, 0x6f, 0x72, 0x73, 0x2e,
-	0x70, 0x72, 0x6f, 0x74, 0x6f, 0x12, 0x19, 0x6f, 0x72, 0x67, 0x2e, 0x75, 0x6e, 0x69, 0x73, 0x74,
-	0x61, 0x63, 0x6b, 0x2e, 0x6d, 0x69, 0x63, 0x72, 0x6f, 0x2e, 0x65, 0x72, 0x72, 0x6f, 0x72, 0x73,
-	0x22, 0x5b, 0x0a, 0x05, 0x45, 0x72, 0x72, 0x6f, 0x72, 0x12, 0x0e, 0x0a, 0x02, 0x69, 0x64, 0x18,
-	0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x02, 0x69, 0x64, 0x12, 0x12, 0x0a, 0x04, 0x63, 0x6f, 0x64,
-	0x65, 0x18, 0x02, 0x20, 0x01, 0x28, 0x05, 0x52, 0x04, 0x63, 0x6f, 0x64, 0x65, 0x12, 0x16, 0x0a,
-	0x06, 0x64, 0x65, 0x74, 0x61, 0x69, 0x6c, 0x18, 0x03, 0x20, 0x01, 0x28, 0x09, 0x52, 0x06, 0x64,
-	0x65, 0x74, 0x61, 0x69, 0x6c, 0x12, 0x16, 0x0a, 0x06, 0x73, 0x74, 0x61, 0x74, 0x75, 0x73, 0x18,
-	0x04, 0x20, 0x01, 0x28, 0x09, 0x52, 0x06, 0x73, 0x74, 0x61, 0x74, 0x75, 0x73, 0x42, 0x3b, 0x5a,
-	0x39, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x75, 0x6e, 0x69, 0x73,
-	0x74, 0x61, 0x63, 0x6b, 0x2d, 0x6f, 0x72, 0x67, 0x2f, 0x6d, 0x69, 0x63, 0x72, 0x6f, 0x2d, 0x63,
-	0x6c, 0x69, 0x65, 0x6e, 0x74, 0x2d, 0x67, 0x72, 0x70, 0x63, 0x2f, 0x69, 0x6e, 0x74, 0x65, 0x72,
-	0x6e, 0x61, 0x6c, 0x2f, 0x65, 0x72, 0x72, 0x6f, 0x72, 0x73, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74,
-	0x6f, 0x33,
-}
-
-var (
-	file_client_errors_proto_rawDescOnce sync.Once
-	file_client_errors_proto_rawDescData = file_client_errors_proto_rawDesc
-)
-
-func file_client_errors_proto_rawDescGZIP() []byte {
-	file_client_errors_proto_rawDescOnce.Do(func() {
-		file_client_errors_proto_rawDescData = protoimpl.X.CompressGZIP(file_client_errors_proto_rawDescData)
-	})
-	return file_client_errors_proto_rawDescData
-}
-
-var file_client_errors_proto_msgTypes = make([]protoimpl.MessageInfo, 1)
-var file_client_errors_proto_goTypes = []interface{}{
-	(*Error)(nil), // 0: org.unistack.micro.errors.Error
-}
-var file_client_errors_proto_depIdxs = []int32{
-	0, // [0:0] is the sub-list for method output_type
-	0, // [0:0] is the sub-list for method input_type
-	0, // [0:0] is the sub-list for extension type_name
-	0, // [0:0] is the sub-list for extension extendee
-	0, // [0:0] is the sub-list for field type_name
-}
-
-func init() { file_client_errors_proto_init() }
-func file_client_errors_proto_init() {
-	if File_client_errors_proto != nil {
-		return
-	}
-	if !protoimpl.UnsafeEnabled {
-		file_client_errors_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*Error); i {
-			case 0:
-				return &v.state
-			case 1:
-				return &v.sizeCache
-			case 2:
-				return &v.unknownFields
-			default:
-				return nil
-			}
-		}
-	}
-	type x struct{}
-	out := protoimpl.TypeBuilder{
-		File: protoimpl.DescBuilder{
-			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
-			RawDescriptor: file_client_errors_proto_rawDesc,
-			NumEnums:      0,
-			NumMessages:   1,
-			NumExtensions: 0,
-			NumServices:   0,
-		},
-		GoTypes:           file_client_errors_proto_goTypes,
-		DependencyIndexes: file_client_errors_proto_depIdxs,
-		MessageInfos:      file_client_errors_proto_msgTypes,
-	}.Build()
-	File_client_errors_proto = out.File
-	file_client_errors_proto_rawDesc = nil
-	file_client_errors_proto_goTypes = nil
-	file_client_errors_proto_depIdxs = nil
-}
diff --git a/internal/errors/client_errors.proto b/internal/errors/client_errors.proto
deleted file mode 100644
index 0117e1f..0000000
--- a/internal/errors/client_errors.proto
+++ /dev/null
@@ -1,11 +0,0 @@
-syntax = "proto3";
-
-option go_package = "github.com/unistack-org/micro-client-grpc/internal/errors";
-package org.unistack.micro.errors;
-
-message Error {
-  string id = 1;
-  int32 code = 2;
-  string detail = 3;
-  string status = 4;
-};
diff --git a/internal/errors/errors.go b/internal/errors/errors.go
deleted file mode 100644
index 6dde75c..0000000
--- a/internal/errors/errors.go
+++ /dev/null
@@ -1,159 +0,0 @@
-package errors
-
-import (
-	"fmt"
-)
-
-func (e *Error) Error() string {
-	return fmt.Sprintf(`{"id":"%s","code":%d,"detail":"%s","status":"%s"}`, e.Id, e.Code, e.Detail, e.Status)
-}
-
-// New generates a custom error.
-func New(id, detail string, code int32) error {
-	return &Error{
-		Id:     id,
-		Code:   code,
-		Detail: detail,
-		//	Status: http.StatusText(int(code)),
-	}
-}
-
-// BadRequest generates a 400 error.
-func BadRequest(id, format string, a ...interface{}) error {
-	return &Error{
-		Id:     id,
-		Code:   400,
-		Detail: fmt.Sprintf(format, a...),
-		//		Status: http.StatusText(400),
-	}
-}
-
-// Unauthorized generates a 401 error.
-func Unauthorized(id, format string, a ...interface{}) error {
-	return &Error{
-		Id:     id,
-		Code:   401,
-		Detail: fmt.Sprintf(format, a...),
-		//		Status: http.StatusText(401),
-	}
-}
-
-// Forbidden generates a 403 error.
-func Forbidden(id, format string, a ...interface{}) error {
-	return &Error{
-		Id:     id,
-		Code:   403,
-		Detail: fmt.Sprintf(format, a...),
-		//		Status: http.StatusText(403),
-	}
-}
-
-// NotFound generates a 404 error.
-func NotFound(id, format string, a ...interface{}) error {
-	return &Error{
-		Id:     id,
-		Code:   404,
-		Detail: fmt.Sprintf(format, a...),
-		//	Status: http.StatusText(404),
-	}
-}
-
-// MethodNotAllowed generates a 405 error.
-func MethodNotAllowed(id, format string, a ...interface{}) error {
-	return &Error{
-		Id:     id,
-		Code:   405,
-		Detail: fmt.Sprintf(format, a...),
-		//Status: http.StatusText(405),
-	}
-}
-
-// Timeout generates a 408 error.
-func Timeout(id, format string, a ...interface{}) error {
-	return &Error{
-		Id:     id,
-		Code:   408,
-		Detail: fmt.Sprintf(format, a...),
-		//Status: http.StatusText(408),
-	}
-}
-
-// Conflict generates a 409 error.
-func Conflict(id, format string, a ...interface{}) error {
-	return &Error{
-		Id:     id,
-		Code:   409,
-		Detail: fmt.Sprintf(format, a...),
-		//Status: http.StatusText(409),
-	}
-}
-
-// InternalServerError generates a 500 error.
-func InternalServerError(id, format string, a ...interface{}) error {
-	return &Error{
-		Id:     id,
-		Code:   500,
-		Detail: fmt.Sprintf(format, a...),
-		//Status: http.StatusText(500),
-	}
-}
-
-// NotImplemented generates a 501 error
-func NotImplemented(id, format string, a ...interface{}) error {
-	return &Error{
-		Id:     id,
-		Code:   501,
-		Detail: fmt.Sprintf(format, a...),
-		//Status: http.StatusText(501),
-	}
-}
-
-// BadGateway generates a 502 error
-func BadGateway(id, format string, a ...interface{}) error {
-	return &Error{
-		Id:     id,
-		Code:   502,
-		Detail: fmt.Sprintf(format, a...),
-		//	Status: http.StatusText(502),
-	}
-}
-
-// ServiceUnavailable generates a 503 error
-func ServiceUnavailable(id, format string, a ...interface{}) error {
-	return &Error{
-		Id:     id,
-		Code:   503,
-		Detail: fmt.Sprintf(format, a...),
-		//Status: http.StatusText(503),
-	}
-}
-
-// GatewayTimeout generates a 504 error
-func GatewayTimeout(id, format string, a ...interface{}) error {
-	return &Error{
-		Id:     id,
-		Code:   504,
-		Detail: fmt.Sprintf(format, a...),
-		//Status: http.StatusText(504),
-	}
-}
-
-// Equal tries to compare errors
-func Equal(err1 error, err2 error) bool {
-	verr1, ok1 := err1.(*Error)
-	verr2, ok2 := err2.(*Error)
-
-	if ok1 != ok2 {
-		return false
-	}
-
-	if !ok1 {
-		return err1 == err2
-	}
-
-	if verr1.Code != verr2.Code {
-		return false
-	}
-
-	return true
-}