致命错误：无法联系 pgAdmin 4 服务器：（Windows 10 Pro）

Question

这是我的 PGAdmin4 中的错误。

我已从 AppData (Roaming) 中删除数据，并尝试将其作为 Admisitaror 运行。但是我没有找到解决这个问题的方法。

我试图解决这个问题 2 天，但无论我以哪种方式运行它都没有被我解决。

我还在 Windows 中添加了环境变量的路径，但它仍然给我这个错误：

pgAdmin Runtime Environment
--------------------------------------------------------
Python Path: "C:\Program Files\PostgreSQL\13\pgAdmin 4\python\python.exe"
Runtime Config File: "C:\Users\RAFI\AppData\Roaming\pgadmin\runtime_config.json"
pgAdmin Config File: "C:\Program Files\PostgreSQL\13\pgAdmin 4\web\config.py"
Webapp Path: "C:\Program Files\PostgreSQL\13\pgAdmin 4\web\pgAdmin4.py"
pgAdmin Command: "C:\Program Files\PostgreSQL\13\pgAdmin 4\python\python.exe -s C:\Program Files\PostgreSQL\13\pgAdmin 4\web\pgAdmin4.py"
Environment: 
  - ALLUSERSPROFILE: C:\ProgramData
  - APPDATA: C:\Users\RAFI\AppData\Roaming
  - ChocolateyInstall: C:\ProgramData\chocolatey
  - ChocolateyLastPathUpdate: 132568889893646513
  - CHROME_CRASHPAD_PIPE_NAME: \\.\pipe\crashpad_9944_NWJOXUOEYVOTZCKP
  - CHROME_RESTART: NW.js|Whoa! NW.js has crashed. Relaunch now?|LEFT_TO_RIGHT
  - CommonProgramFiles: C:\Program Files\Common Files
  - CommonProgramFiles(x86): C:\Program Files (x86)\Common Files
  - CommonProgramW6432: C:\Program Files\Common Files
  - COMPUTERNAME: NOBOROTNO-09-WP
  - ComSpec: C:\WINDOWS\system32\cmd.exe
  - DriverData: C:\Windows\System32\Drivers\DriverData
  - HOMEDRIVE: C:
  - HOMEPATH: \Users\RAFI
  - IntelliJ IDEA: C:\Program Files\JetBrains\IntelliJ IDEA 2020.2.1\bin;
  - INTEL_DEV_REDIST: C:\Program Files (x86)\Common Files\Intel\Shared Libraries\
  - LOCALAPPDATA: C:\Users\RAFI\AppData\Local
  - LOGONSERVER: \\NOBOROTNO-09-WP
  - MIC_LD_LIBRARY_PATH: C:\Program Files (x86)\Common Files\Intel\Shared Libraries\compiler\lib\mic
  - NUMBER_OF_PROCESSORS: 8
  - OneDrive: C:\Users\RAFI\OneDrive
  - OS: Windows_NT
  - Path: C:\Program Files (x86)\Common Files\Intel\Shared Libraries\redist\intel64\compiler;C:\Program Files (x86)\Intel\iCLS Client\;C:\Program Files\Intel\iCLS Client\;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\DAL;C:\Program Files\Intel\Intel(R) Management Engine Components\DAL;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\IPT;C:\Program Files\Intel\Intel(R) Management Engine Components\IPT;C:\Program Files (x86)\NVIDIA Corporation\PhysX\Common;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0\;C:\WINDOWS\System32\OpenSSH\;C:\Program Files\Intel\WiFi\bin\;C:\Program Files\Common Files\Intel\WirelessCommon\;C:\Android;%JAVA_HOME%\bin;C:\Program Files\Microsoft SQL Server\130\Tools\Binn\;C:\Program Files\Git\cmd;C:\Program Files\NVIDIA Corporation\NVIDIA NvDLISR;C:\ProgramData\chocolatey\bin;C:\Program Files\nodejs\;C:\Users\RAFI\AppData\Local\Programs\Python\Python39\Scripts\;C:\Users\RAFI\AppData\Local\Programs\Python\Python39\;C:\Users\RAFI\AppData\Local\Microsoft\WindowsApps;%IntelliJ IDEA Community Edition%;C:\Program Files\JetBrains\IntelliJ IDEA 2019.3.3\bin;C:\Program Files\JetBrains\PyCharm 2019.3.3\bin;C:\Program Files\JetBrains\IntelliJ IDEA 2020.1.1\bin;C:\Users\RAFI\AppData\Local\Microsoft\WindowsApps;C:\Users\RAFI\AppData\Local\Programs\Microsoft VS Code\bin;C:\Program Files\JetBrains\IntelliJ IDEA 2020.2.1\bin;C:\Program Files\JetBrains\PyCharm 2021.1.1\bin;C:\Users\RAFI\Documents\flutter;C:\src\flutter\bin;C:\Users\RAFI\AppData\Roaming\npm
  - PATHEXT: .COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH;.MSC
  - PGADMIN_INT_KEY: b4165b61-33d2-4880-91a7-36803ac38c2d
  - PGADMIN_INT_PORT: 59802
  - PGADMIN_SERVER_MODE: OFF
  - Postgresql: C:\Program Files\PostgreSQL\13\bin\
  - PROCESSOR_ARCHITECTURE: AMD64
  - PROCESSOR_IDENTIFIER: Intel64 Family 6 Model 142 Stepping 10, GenuineIntel
  - PROCESSOR_LEVEL: 6
  - PROCESSOR_REVISION: 8e0a
  - ProgramData: C:\ProgramData
  - ProgramFiles: C:\Program Files
  - ProgramFiles(x86): C:\Program Files (x86)
  - ProgramW6432: C:\Program Files
  - PSModulePath: C:\Users\RAFI\Documents\WindowsPowerShell\Modules;
  - PT7HOME: C:\Program Files\Cisco Packet Tracer 7.3.1
  - PUBLIC: C:\Users\Public
  - PyCharm: C:\Program Files\JetBrains\PyCharm 2021.1.1\bin;
  - Python 3.9: C:\Python39\Scripts
  - QT_DEVICE_PIXEL_RATIO: auto
  - SystemDrive: C:
  - SystemRoot: C:\WINDOWS
  - TEMP: C:\Users\RAFI\AppData\Local\Temp
  - TMP: C:\Users\RAFI\AppData\Local\Temp
  - USERDOMAIN: NOBOROTNO-09-WP
  - USERDOMAIN_ROAMINGPROFILE: NOBOROTNO-09-WP
  - USERNAME: RAFI
  - USERPROFILE: C:\Users\RAFI
  - windir: C:\WINDOWS
--------------------------------------------------------

NOTE: Configuring authentication for DESKTOP mode.

Traceback (most recent call last):
  File "C:\Program Files\PostgreSQL\13\pgAdmin 4\web\pgAdmin4.py", line 91, in <module>
    exec(open(file_quote(setup_py), 'r').read())
  File "<string>", line 506, in <module>
  File "<string>", line 378, in setup_db
  File "C:\Program Files\PostgreSQL\13\pgAdmin 4\web\pgadmin\__init__.py", line 351, in create_app
    db_upgrade(app)
  File "C:\Program Files\PostgreSQL\13\pgAdmin 4\web\pgadmin\setup\db_upgrade.py", line 25, in db_upgrade
    flask_migrate.upgrade(migration_folder)
  File "C:\Program Files\PostgreSQL\13\pgAdmin 4\python\lib\site-packages\flask_migrate\__init__.py", line 96, in wrapped
    f(*args, **kwargs)
  File "C:\Program Files\PostgreSQL\13\pgAdmin 4\python\lib\site-packages\flask_migrate\__init__.py", line 271, in upgrade
    command.upgrade(config, revision, sql=sql, tag=tag)
  File "C:\Program Files\PostgreSQL\13\pgAdmin 4\python\lib\site-packages\alembic\command.py", line 294, in upgrade
    script.run_env()
  File "C:\Program Files\PostgreSQL\13\pgAdmin 4\python\lib\site-packages\alembic\script\base.py", line 490, in run_env
    util.load_python_file(self.dir, "env.py")
  File "C:\Program Files\PostgreSQL\13\pgAdmin 4\python\lib\site-packages\alembic\util\pyfiles.py", line 97, in load_python_file
    module = load_module_py(module_id, path)
  File "C:\Program Files\PostgreSQL\13\pgAdmin 4\python\lib\site-packages\alembic\util\compat.py", line 182, in load_module_py
    spec.loader.exec_module(module)
  File "<frozen importlib._bootstrap_external>", line 783, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "C:\Program Files\PostgreSQL\13\pgAdmin 4\web\pgadmin\setup\..\..\migrations\env.py", line 93, in <module>
    run_migrations_online()
  File "C:\Program Files\PostgreSQL\13\pgAdmin 4\web\pgadmin\setup\..\..\migrations\env.py", line 86, in run_migrations_online
    context.run_migrations()
  File "<string>", line 8, in run_migrations
  File "C:\Program Files\PostgreSQL\13\pgAdmin 4\python\lib\site-packages\alembic\runtime\environment.py", line 813, in run_migrations
    self.get_context().run_migrations(**kw)
  File "C:\Program Files\PostgreSQL\13\pgAdmin 4\python\lib\site-packages\alembic\runtime\migration.py", line 561, in run_migrations
    step.migration_fn(**kw)
  File "C:\Program Files\PostgreSQL\13\pgAdmin 4\web\migrations\versions\fdc58d9bd449_.py", line 122, in upgrade
    Security(current_app, user_datastore, register_blueprint=False)
  File "C:\Program Files\PostgreSQL\13\pgAdmin 4\python\lib\site-packages\flask_security\core.py", line 1062, in __init__
    self._state = self.init_app(
  File "C:\Program Files\PostgreSQL\13\pgAdmin 4\python\lib\site-packages\flask_security\core.py", line 1102, in init_app
    self._state = state = _get_state(app, datastore, **kwargs)
  File "C:\Program Files\PostgreSQL\13\pgAdmin 4\python\lib\site-packages\flask_security\core.py", line 608, in _get_state
    remember_token_serializer=_get_serializer(app, "remember"),
  File "C:\Program Files\PostgreSQL\13\pgAdmin 4\python\lib\site-packages\flask_security\core.py", line 593, in _get_serializer
    return URLSafeTimedSerializer(secret_key=secret_key, salt=salt)
  File "C:\Program Files\PostgreSQL\13\pgAdmin 4\python\lib\site-packages\itsdangerous\serializer.py", line 104, in __init__
    self.secret_keys: _t.List[bytes] = _make_keys_list(secret_key)
  File "C:\Program Files\PostgreSQL\13\pgAdmin 4\python\lib\site-packages\itsdangerous\signer.py", line 64, in _make_keys_list
    return [want_bytes(s) for s in secret_key]
TypeError: 'NoneType' object is not iterable

Answer 1

以前的答案和评论中提到的问题的相关链接与这个不同。唯一的相似之处是致命错误的报告 - 但日志不同。我遇到了这个问题，该链接上的答案都没有帮助。

我意识到问题可能在于使用 Win Pro 工作 - 因为我在 Windows Pro 和 Windows Home 上安装了相同版本的 PostgresDB 和 pgadmin - 具有相同的更新系统和相同的安全性 - win home 工作和 win pro 工作不是。通过日志跟踪问题后，我通过检查配置文件（c:\Program Files\PostgreSQL\10\pgAdmin 4\web 或 c:\Program Files\pgAdmin 4\web ）中的路径一一解决了这些问题，解决了很多对我来说潜在的问题。我有时会给它一个临时硬编码位置，而不是构造路径，只是为了看看是否存在打嗝。例如，代码不是将 win pro 注册为 windows 机器而是服务器，它试图将文件放在错误的位置

关于您的具体问题，请尝试从底部追溯您的错误。您的请求来自错误之前的行。您的最后一行说第 64 行给定路径 (signer.py) 中的定义给出了“无”结果，而脚本期望得到非“无”答案

def _make_keys_list(secret_key: _t_secret_key) -> _t.List[bytes]:

if isinstance(secret_key, (str, bytes)):

  return [want_bytes(secret_key)]

return [want_bytes(s) for s in secret_key]

我会将其追溯到请求并尝试查看为什么它没有给出任何内容。检查配置文件中的路径。

Answer 2

1. 找到“AppData”文件夹（默认隐藏）
2. 转到-C:\Users\asus_pc\AppData\Roaming
3. 查找“pgadmin”和delete - pgadmin 文件夹
4. 搜索 pgAdmin4 并运行（如果不工作，请尝试使用 run as administator

Answer 3

和你一样，我尝试删除会话数据并以管理员身份运行程序，以及其他各种已发布的解决方案。

对我有用的修复只是将超时持续时间增加到 240 秒。这可以从显示错误消息的窗口中完成。这个窗口的底部是一个按钮，允许调整一些配置设置。