g4f api 启动报错：raise PydanticUndefinedAnnotation.from_name_error(e) from epydantic.errors.PydanticUnd

  File "/usr/local/lib/python3.10/dist-packages/pydantic/_internal/_generate_schema.py", line 700, in _generate_schema
    schema = self._post_process_generated_schema(self._generate_schema_inner(obj))
  File "/usr/local/lib/python3.10/dist-packages/pydantic/_internal/_generate_schema.py", line 717, in _generate_schema_inner
    return self.generate_schema(self._resolve_forward_ref(obj))
  File "/usr/local/lib/python3.10/dist-packages/pydantic/_internal/_generate_schema.py", line 642, in _resolve_forward_ref
    raise PydanticUndefinedAnnotation.from_name_error(e) from e
pydantic.errors.PydanticUndefinedAnnotation: name 'ErrorResponseMessageModel' is not defined

For further information visit https://errors.pydantic.dev/2.5/u/undefined-annotation

pip 升级g4f api 不管用

升级apt库

sudo apt upgrade python3-pydantic

 报错：

sudo apt upgrade python3-pydantic
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
python3-pydantic is already the newest version (1.8.2-1).
Calculating upgrade... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
9 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
Do you want to continue? [Y/n] y
Setting up nginx-common (1.18.0-6ubuntu14.6) ...
debconf: unable to initialize frontend: Dialog
debconf: (No usable dialog-like program is installed, so the dialog based frontend cannot be used. at /usr/share/perl5/Debconf/FrontEnd/Dialog.pm line 78.)
debconf: falling back to frontend: Readline
chown: cannot access '/var/log/nginx': No such file or directory
dpkg: error processing package nginx-common (--configure):
 installed nginx-common package post-installation script subprocess returned error exit status 1
dpkg: dependency problems prevent configuration of libnginx-mod-http-xslt-filter:
 libnginx-mod-http-xslt-filter depends on nginx-common (= 1.18.0-6ubuntu14.6); however:
  Package nginx-common is not configured yet.

dpkg: error processing package libnginx-mod-http-xslt-filter (--configure):
 dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of libnginx-mod-http-geoip2:
 libnginx-mod-http-geoip2 depends on nginx-common (= 1.18.0-6ubuntu14.6); however:
  Package nginx-common is not configured yet.

dpkg: error processing package libnginx-mod-http-geoip2 (--configure):
 dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of libnginx-mod-stream-geoip2:
 libnginx-mod-stream-geoip2 depends on nginx-common (= 1.18.0-6ubuntu14.6); however:
  Package nginx-common is not configured yet.

dpkg: error processing package libnginx-mod-stream-geoip2 (--configure):
 dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of nginx-core:
 nginx-core depends on libnginx-mod-http-xslt-filter (= 1.18.0-6ubuntu14.6); however:
  Package libnginx-mod-http-xslt-filter is not configured yet.
 nginx-core depends on libnginx-mod-http-geoip2 (= 1.18.0-6ubuntu14.6); however:
  Package libnginx-mod-http-geoip2 is not configured yet.
 nginx-core depends on libnginx-mod-stream-geoip2 (= 1.18.0-6ubuntu14.6); however:
  Package libnginx-mod-stream-geoip2 is not configured yet.
 nginx-core depends on nginx-common (= 1.18.0-6ubuntu14.6); however:
  Package nginx-common is not configured yet.

dpkg: error processing package nginx-core (--configure):
 dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of libnginx-mod-mail:
 libnginx-mod-mail depends on nginx-common (= 1.18.0-6ubuntu14.6); however:
  Package nginx-common is not configured yet.

dpkg: error processing package libnginx-mod-mail (--configure):
 dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of nginx:
 nginx depends on nginx-core (<< 1.18.0-6ubuntu14.6.1~) | nginx-full (<< 1.18.0-6ubuntu14.6.1~) | nginx-light (<< 1.18.0-6ubuntu14.6.1~) | nginx-extras (<< 1.18.0-6ubuntu14.6.1~); however:
  Package nginx-core is not configured yet.
  Package nginx-full is not installed.
  Package nginx-light is not installed.
  Package nginx-extras is not installed.
 nginx depends on nginx-core (>= 1.18.0-6ubuntu14.6) | nginx-full (>= 1.18.0-6ubuntu14.6) | nginx-light (>= 1.18.0-6ubuntu14.6) | nginx-extras (>= 1.18.0-6ubuntu14.6); however:
  Package nginx-core is not configured yet.
  Package nginx-full is not installed.
  Package nginx-light is not installed.
  Package nginx-extras is not installed.

dpkg: error processing package nginx (--configure):
 dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of libnginx-mod-http-image-filter:
 libnginx-mod-http-image-filter depends on nginx-common (= 1.18.0-6ubuntu14.6); however:
  Package nginx-common is not configured yet.

dpkg: error processing package libnginx-mod-http-image-filter (--configure):
 dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of libnginx-mod-stream:
 libnginx-mod-stream depends on nginx-common (= 1.18.0-6ubuntu14.6); however:
  Package nginx-common is not configured yet.

dpkg: error processing package libnginx-mod-stream (--configure):
 dependency problems - leaving unconfigured
Errors were encountered while processing:
 nginx-common
 libnginx-mod-http-xslt-filter
 libnginx-mod-http-geoip2
 libnginx-mod-stream-geoip2
 nginx-core
 libnginx-mod-mail
 nginx
 libnginx-mod-http-image-filter
 libnginx-mod-stream
E: Sub-process /usr/bin/dpkg returned an error code (1)

尝试解决：

1. 清除已下载的包: 有时候，未完全下载或损坏的软件包可能会导致问题。清除这些包，然后再次尝试安装。

   sudo apt clean
   sudo apt update

尝试

1. 修复 dpkg 数据库: 首先尝试修复损坏的 dpkg 数据库，这可能会解决依赖问题。

   sudo apt --fix-broken install

后来用这个尝试修复

sudo dpkg --configure -a

sudo apt remove nginx-common

 都没有解决。

 最后是用这句解决的：

 sudo pip install g4f[all] -U

安装的是否，发现安装了curl_cffi certifi等软件，证明确实这回安装的对。