在5.0.3版本中使用_schema.erl文件正常运行，但在5.0.16版本中运行则会报以下错误
escript: exception error: undefined function emqx_mytest_schema:roots/0
in function hocon_schema:roots/1 (hocon_schema.erl, line 239)
in call from emqx_conf_schema:roots/1 (emqx_conf_schema.erl, line 1257)
in call from lists:flatmap/2 (lists.erl, line 1254)
in call from lists:flatmap/2 (lists.erl, line 1254)
in call from emqx_conf_schema:roots/0 (emqx_conf_schema.erl, line 107)
in call from hocon_schema:roots/1 (hocon_schema.erl, line 239)
in call from hocon_schema:resolve_struct_name/2 (hocon_schema.erl, line 220)
ERROR: call_hocon_failed: -s emqx_conf_schema -c /home/zz/work/docker-build/5.0.16/run/_build/emqx/rel/emqx/etc/emqx.conf multi_get node.data_dir node.name node.cookie node.db_backend cluster.proto_dist
在自己编写的模块mytest中使用的_schema.erl文件如下：
-module(emqx_mytest_schema).
-include_lib("typerefl/include/types.hrl").
-include_lib("hocon/include/hoconsc.hrl").
-export([roots/0, fields/1, desc/1, namespace/0]).
namespace() -> "mytest".
roots() -> ["mytest"].
fields("mytest") ->
[
{enabled, sc(boolean(), false, mytest_enabled)},
{"kafka",
?HOCON(
?R_REF("kafka"),
#{
desc => "mytest_kafka",
required => false
}
)
}
];
fields("kafka") ->
[
{enabled, sc(boolean(), false, mytest_kafka_enabled)},
{bootstrap, sc(string(), "127.0.0.1", kafka_bootstrap)},
{topic, sc(string(), "mqtt-conn-session", kafka_topic)},
{client, sc(string(), "brod_client", kafka_client)},
{consumer_group, sc(string(), "mqtt-conn-session-group-local", kafka_consumer_group)},
{insert_interval,
sc(
emqx_schema:duration_s(),
"100s",
kafka_insert_interval
)},
{batch_size,
sc(
integer(),
100,
kafka_batch_size
)}
].
desc("mytest_enabled") ->
?DESC(mytest_enabled);
desc("kafka_enabled")->
?DESC(mytest_kafka_enabled);
desc("mytest_kafka") ->
?DESC(mytest_kafka);
desc(_) ->
undefined.
%%--------------------------------------------------------------------
%% Internal functions
%%--------------------------------------------------------------------
sc(Type, Default, Desc) ->
?HOCON(Type, #{default => Default, desc => ?DESC(Desc)}).