uni_android_plugin_project/.idea/compiler.xml

<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
  <component name="CompilerConfiguration">
    <bytecodeTargetLevel target="1.7">
      <module name="UniPlugin-Hello-AS.app" target="1.8" />
      <module name="UniPlugin-Hello-AS.uniplugin_component" target="1.8" />
      <module name="UniPlugin-Hello-AS.uniplugin_module" target="1.8" />
      <module name="UniPlugin-Hello-AS.uniplugin_module_ox" target="1.8" />
      <module name="UniPlugin-Hello-AS.uniplugin_richalert" target="1.8" />
      <module name="UniPlugin-Hello-AS.zmt_module" target="1.8" />
    </bytecodeTargetLevel>
  </component>
</project>