无法启动Google Cloud phpMyAdmin页面

我正在尝试使用以下链接为Google Cloud设置phpMyAdmin页面，我在这个网站上100%遵循:https://cloud.google.com/sql/docs/phpmyadmin-on-app-engine当我尝试运行php服务器时，看看它是否启动并运行，我做以下操作:

C02Q202LG8WL:phpMyAdmin user$ appcfg.py update .
01:26 AM Application: database-140707; version: 2
01:26 AM Host: appengine.google.com
01:26 AM Starting update of app: database-140707, module: phpmyadmindb, version: 2
01:26 AM Getting current resource limits.
01:26 AM Scanning files on local disk.
01:26 AM Scanned 500 files.
01:26 AM Scanned 1000 files.
01:26 AM Scanned 1500 files.
01:26 AM Scanned 2000 files.
01:26 AM Cloning 1113 static files.
01:27 AM Rolling back the update.
Error 409: --- begin server output ---
No transaction is in progress.
--- end server output ---

我们一直得到这个No transaction is in progress.错误。它使我无法加载localhost/phpmyadmin页面。知道为什么会这样吗?如果我尝试回滚事务的更改，则执行:

C02Q202LG8WL:phpMyAdmin user$ /usr/local/google_appengine/appcfg.py rollback database-140707/
01:30 AM Application: database-140707
01:30 AM Host: appengine.google.com
01:30 AM Rolling back the update.
C02Q202LG8WL:phpMyAdmin user$ appcfg.py update .
01:30 AM Application: database-140707; version: 2
01:30 AM Host: appengine.google.com
01:30 AM Starting update of app: database-140707, module: phpmyadmindb, version: 2
01:30 AM Getting current resource limits.
01:30 AM Scanning files on local disk.
01:30 AM Scanned 500 files.
01:30 AM Scanned 1000 files.
01:30 AM Scanned 1500 files.
01:30 AM Scanned 2000 files.
    Error 409: --- begin server output ---
There is an operation pending for this application: AppLock held for "Updating engine_version_id='2' within engine_id='default'." acquired by <Insert User> at 2016-08-19 08:26:05.734255 GMT.  Please wait and try again or use 'appcfg rollback' to attempt to cleanly abort the current operation.
--- end server output ---

我似乎弄不清楚为什么我不能在谷歌云上启动phpMyAdmin，我不知道为什么或这些错误来自哪里。任何帮助都会很感激。谢谢。

我实际上把所有东西都正确地部署了。我所要做的就是把app.yaml从模块phpmyadmindb换成default。下面是我创建的app.yaml:

application: database-140707
service: default
runtime: php55
api_version: 1
version: 3
handlers:
- url: /(.+'.(ico|jpg|png|gif))$
  static_files: '1
  upload: (.+'.(ico|jpg|png|gif))$
  application_readable: true
- url: /(.+'.(htm|html|css|js))$
  static_files: '1
  upload: (.+'.(htm|html|css|js))$
  application_readable: true
- url: /(.+'.php)$
  script: '1
  login: admin
- url: /.*
  script: index.php
  login: admin

config.inc.php:

<!-- [START all] -->
<?php
// [START_EXCLUDE silent]
/**
 * Copyright 2016 Google Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
// [END_EXCLUDE]
/*
 * This is needed for cookie based authentication to encrypt password in
 * cookie
 * http://www.question-defense.com/tools/phpmyadmin-blowfish-secret-generator
 */
$cfg['blowfish_secret'] = '<Blow Fish Generator>'; /* YOU MUST FILL IN THIS FOR COOKIE AUTH! */
/*
 * Servers configuration
 */
$i = 0;
// Change this to use the project and instance that you've created.
$host = '/cloudsql/<Cloud SQL Instance Name>';
$type = 'socket';
/*
* First server
*/
$i++;
/* Authentication type */
$cfg['Servers'][$i]['auth_type'] = 'cookie';
/* Server parameters */
$cfg['Servers'][$i]['socket'] = $host;
$cfg['Servers'][$i]['connect_type'] = $type;
$cfg['Servers'][$i]['compress'] = false;
/* Select mysql if your server does not have mysqli */
$cfg['Servers'][$i]['extension'] = 'mysqli';
$cfg['Servers'][$i]['AllowNoPassword'] = true;
/*
 * End of servers configuration
 */
/*
* Other settings
*/
$cfg['PmaNoRelation_DisableWarning'] = true;
$cfg['ExecTimeLimit'] = 60;
$cfg['CheckConfigurationPermissions'] = false;
// [END all]

google_app_engine.enable_functions = "php_uname, getmypid"

下面是成功的输出:

C02Q202LG8WL:phpMyAdmin schan$ appcfg.py update .
01:12 PM Application: database-140707; version: 3
01:12 PM Host: appengine.google.com
01:12 PM Starting update of app: database-140707, version: 3
01:12 PM Getting current resource limits.
01:12 PM Scanning files on local disk.
01:12 PM Scanned 500 files.
01:13 PM Scanned 1000 files.
01:13 PM Scanned 1500 files.
01:13 PM Scanned 2000 files.
01:13 PM Cloning 1113 static files.
01:13 PM Cloning 2276 application files.
01:13 PM Cloned 2000 files.
01:13 PM Uploading 3 files and blobs.
01:13 PM Uploaded 3 files and blobs.
01:13 PM Compilation starting.
01:13 PM Compilation completed.
01:13 PM Starting deployment.
01:13 PM Checking if deployment succeeded.
01:13 PM Deployment successful.
01:13 PM Checking if updated app version is serving.
01:13 PM Completed update of app: database-140707, version: 3

现在我遇到的问题是，教程说导航到https://phpmyadmindb-dot-database-140707.appspot.com/查看phpmyadmin是否设置正确。当我在那里导航，然而，我得到的是一个屏幕，说Hello World!，但没有实际的phpMyAdmin似乎被部署。我试着去https://phpmyadmindb-dot-database-140707.appspot.com/index.php看看它是否被创建，但它不是。有人知道为什么吗?