Load plugin emqx_extension_hook error

[fanmlei]

社区版不支持这个插件吗？ 在启用插件时报如下错误

运行环境：

• 社区版EMQ X Broker 4.1.0，
• Python3.7
• 已安装emqx-extension-sdk

  Load plugin emqx_extension_hook error: {emqx_extension_hook,
                                      {bad_return,
                                       {{emqx_extension_hook_app,start,
                                         [normal,[]]},
                                        {'EXIT',
                                         {{badmatch,
                                           {error,unknown_return_format}},
                                          [{emqx_extension_hook_app,
                                            load_all_drivers,1,
                                            [{file,
                                              "/Users/denghaigui/Desktop/work/git/4.1_dev/v4.1/emqx-rel/_build/emqx/lib/emqx_extension_hook/src/emqx_extension_hook_app.erl"},
                                             {line,66}]},
                                           {emqx_extension_hook_app,start,
                                            2,
                                            [{file,
                                              "/Users/denghaigui/Desktop/work/git/4.1_dev/v4.1/emqx-rel/_build/emqx/lib/emqx_extension_hook/src/emqx_extension_hook_app.erl"},
                                             {line,38}]},
                                           {application_master,
                                            start_it_old,4,
                                            [{file,"application_master.erl"},
                                             {line,277}]}]}}}}}.

[HJianBo]

Hi @fanmlei Yes, it is supported except for Message type hooks.

The {error,unknown_return_format} error indicates that your script has been executed, but the returned content should be incorrect.