`Mixin has no targets` in example mod `1.20`

[Coloryr]

Gen zip 1.20 Import project template-mod-template-1.20

下午3:28:33: 正在执行 'build'…


> Configure project :
Fabric Loom: 1.6.11

> Task :checkKotlinGradlePluginConfigurationErrors
> Task :processResources
> Task :sourcesJar
> Task :processTestResources NO-SOURCE
> Task :validateAccessWidener NO-SOURCE
> Task :remapSourcesJar
> Task :compileKotlin

> Task :compileJava FAILED
6 actionable tasks: 6 executed
H:\fabric\template-mod-template-1.20\src\main\java\com\example\mixin\ExampleMixin.java:9: ����: Mixin has no targets
@Mixin(MinecraftServer.class)
^
H:\fabric\template-mod-template-1.20\src\main\java\com\example\mixin\ExampleMixin.java:3: ����: �����net.minecraft.server������
import net.minecraft.server.MinecraftServer;
                           ^
H:\fabric\template-mod-template-1.20\src\main\java\com\example\mixin\ExampleMixin.java:9: ����: �Ҳ�������
@Mixin(MinecraftServer.class)
       ^
  ����: �� MinecraftServer
3 ������

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':compileJava'.
> Compilation failed; see the compiler error output for details.

* Try:
> Run with --info option to get more log output.
> Run with --scan to get full insights.

BUILD FAILED in 10s
下午3:28:44: 执行完成 'build'。

[AnarchadiaMC]

Getting the same problem here.

[EvarikaArkana]

Same issue here but for 1.21.5