diff --git a/server/mixins/socketio.mixin.ts b/server/mixins/socketio.mixin.ts
index d83998e0..e97f2eed 100644
--- a/server/mixins/socketio.mixin.ts
+++ b/server/mixins/socketio.mixin.ts
@@ -15,7 +15,7 @@ import {
   Errors,
 } from 'tailchat-server-sdk';
 import _ from 'lodash';
-import { ServiceUnavailableError } from '../lib/errors';
+import { ServiceUnavailableError } from 'tailchat-server-sdk';
 import { generateRandomStr, isValidStr } from '../lib/utils';
 import bcrypt from 'bcryptjs';
 
diff --git a/server/packages/sdk/src/index.ts b/server/packages/sdk/src/index.ts
index b96041d2..9a513a60 100644
--- a/server/packages/sdk/src/index.ts
+++ b/server/packages/sdk/src/index.ts
@@ -12,6 +12,7 @@ export type {
 } from './services/types';
 export { parseLanguageFromHead } from './services/lib/i18n/parser';
 export { t } from './services/lib/i18n';
+export * from './services/lib/errors';
 export { call } from './services/lib/call';
 export {
   config,
diff --git a/server/lib/errors.ts b/server/packages/sdk/src/services/lib/errors.ts
similarity index 100%
rename from server/lib/errors.ts
rename to server/packages/sdk/src/services/lib/errors.ts
diff --git a/server/plugins/com.msgbyte.tasks/services/tasks.service.ts b/server/plugins/com.msgbyte.tasks/services/tasks.service.ts
index 56850a1f..d0e450e6 100644
--- a/server/plugins/com.msgbyte.tasks/services/tasks.service.ts
+++ b/server/plugins/com.msgbyte.tasks/services/tasks.service.ts
@@ -1,5 +1,9 @@
-import { NoPermissionError } from '../../../lib/errors';
-import { TcService, TcDbService, TcContext } from 'tailchat-server-sdk';
+import {
+  TcService,
+  TcDbService,
+  TcContext,
+  NoPermissionError,
+} from 'tailchat-server-sdk';
 import type { TaskDocument, TaskModel } from '../models/task';
 
 /**
diff --git a/server/plugins/com.msgbyte.tasks/test/tasks.spec.ts b/server/plugins/com.msgbyte.tasks/test/tasks.spec.ts
index 1bcddc10..5089a1ed 100644
--- a/server/plugins/com.msgbyte.tasks/test/tasks.spec.ts
+++ b/server/plugins/com.msgbyte.tasks/test/tasks.spec.ts
@@ -2,7 +2,7 @@ import { createTestServiceBroker } from '../../../test/utils';
 import TasksService from '../services/tasks.service';
 import { Types } from 'mongoose';
 import _ from 'lodash';
-import { NoPermissionError } from '../../../lib/errors';
+import { NoPermissionError } from 'tailchat-server-sdk';
 
 describe('Test "plugin:com.msgbyte.tasks" service', () => {
   const { broker, service, insertTestData } =
diff --git a/server/services/core/chat/converse.service.ts b/server/services/core/chat/converse.service.ts
index 1a7e52d7..f9fc3cb8 100644
--- a/server/services/core/chat/converse.service.ts
+++ b/server/services/core/chat/converse.service.ts
@@ -1,12 +1,12 @@
 import _ from 'lodash';
 import { Types } from 'mongoose';
-import { DataNotFoundError } from '../../../lib/errors';
 import {
   TcDbService,
   TcService,
   TcContext,
   UserStruct,
   call,
+  DataNotFoundError,
 } from 'tailchat-server-sdk';
 import type {
   ConverseDocument,
diff --git a/server/services/core/chat/message.service.ts b/server/services/core/chat/message.service.ts
index 7889e5fc..067edcb6 100644
--- a/server/services/core/chat/message.service.ts
+++ b/server/services/core/chat/message.service.ts
@@ -1,6 +1,5 @@
 import moment from 'moment';
 import { Types } from 'mongoose';
-import { DataNotFoundError, NoPermissionError } from '../../../lib/errors';
 import type {
   MessageDocument,
   MessageModel,
@@ -10,6 +9,8 @@ import {
   TcDbService,
   GroupBaseInfo,
   TcContext,
+  DataNotFoundError,
+  NoPermissionError,
 } from 'tailchat-server-sdk';
 import type { Group } from '../../../models/group/group';
 import { isValidStr } from '../../../lib/utils';
diff --git a/server/services/core/file.service.ts b/server/services/core/file.service.ts
index 8bf48408..334b93d0 100644
--- a/server/services/core/file.service.ts
+++ b/server/services/core/file.service.ts
@@ -5,13 +5,13 @@ import {
   buildUploadUrl,
   config,
   TcDbService,
+  NoPermissionError,
 } from 'tailchat-server-sdk';
 import MinioService from 'moleculer-minio';
 import _ from 'lodash';
 import mime from 'mime';
 import type { Client as MinioClient } from 'minio';
 import { isValidStaticAssetsUrl, isValidStr } from '../../lib/utils';
-import { NoPermissionError } from '../../lib/errors';
 import path from 'node:path';
 import type { FileDocument, FileModel } from '../../models/file';
 import { Types } from 'mongoose';
diff --git a/server/services/core/group/group.service.ts b/server/services/core/group/group.service.ts
index 987a0fd5..ac58fa1c 100644
--- a/server/services/core/group/group.service.ts
+++ b/server/services/core/group/group.service.ts
@@ -1,10 +1,5 @@
 import _ from 'lodash';
 import { Types } from 'mongoose';
-import {
-  DataNotFoundError,
-  EntityError,
-  NoPermissionError,
-} from '../../../lib/errors';
 import { isValidStr } from '../../../lib/utils';
 import {
   Group,
@@ -20,6 +15,9 @@ import {
   TcDbService,
   PureContext,
   call,
+  DataNotFoundError,
+  EntityError,
+  NoPermissionError,
 } from 'tailchat-server-sdk';
 import moment from 'moment';
 import { PERMISSION } from '../../../lib/role';
diff --git a/server/services/core/group/invite.service.ts b/server/services/core/group/invite.service.ts
index 2c765a09..9ddb9534 100644
--- a/server/services/core/group/invite.service.ts
+++ b/server/services/core/group/invite.service.ts
@@ -1,5 +1,4 @@
 import _ from 'lodash';
-import { NoPermissionError } from '../../../lib/errors';
 import type {
   GroupInvite,
   GroupInviteDocument,
@@ -11,6 +10,7 @@ import {
   TcDbService,
   PureContext,
   call,
+  NoPermissionError,
 } from 'tailchat-server-sdk';
 import { PERMISSION } from '../../../lib/role';
 
diff --git a/server/services/core/user/friendRequest.service.ts b/server/services/core/user/friendRequest.service.ts
index 5b1b1ba4..9984146a 100644
--- a/server/services/core/user/friendRequest.service.ts
+++ b/server/services/core/user/friendRequest.service.ts
@@ -1,7 +1,12 @@
-import { TcCacheCleaner } from '../../../mixins/cache.cleaner.mixin';
-import { TcService, TcDbService, TcContext, Errors } from 'tailchat-server-sdk';
+import {
+  TcService,
+  TcDbService,
+  TcContext,
+  Errors,
+  DataNotFoundError,
+  NoPermissionError,
+} from 'tailchat-server-sdk';
 import _ from 'lodash';
-import { DataNotFoundError, NoPermissionError } from '../../../lib/errors';
 import type { FriendRequest } from '../../../models/user/friendRequest';
 
 interface FriendService extends TcService, TcDbService<any> {}
diff --git a/server/services/core/user/user.service.ts b/server/services/core/user/user.service.ts
index 60b94887..d6a15cc0 100644
--- a/server/services/core/user/user.service.ts
+++ b/server/services/core/user/user.service.ts
@@ -15,8 +15,9 @@ import {
   config,
   PureContext,
   Errors,
+  DataNotFoundError,
+  EntityError,
 } from 'tailchat-server-sdk';
-import { DataNotFoundError, EntityError } from '../../../lib/errors';
 import {
   generateRandomNumStr,
   generateRandomStr,
diff --git a/server/services/openapi/app.service.ts b/server/services/openapi/app.service.ts
index 5fadb79c..2bc9f5b7 100644
--- a/server/services/openapi/app.service.ts
+++ b/server/services/openapi/app.service.ts
@@ -1,11 +1,16 @@
-import { TcService, config, TcDbService, TcContext } from 'tailchat-server-sdk';
+import {
+  TcService,
+  config,
+  TcDbService,
+  TcContext,
+  EntityError,
+} from 'tailchat-server-sdk';
 import _ from 'lodash';
 import {
   filterAvailableAppCapability,
   OpenAppDocument,
   OpenAppModel,
 } from '../../models/openapi/app';
-import { EntityError } from '../../lib/errors';
 import { Types } from 'mongoose';
 import { nanoid } from 'nanoid';