Problem with context:property-placeholder. It refuses to work. What should I do?

Question

Java

I have a musicPlayer.properties config file. It has the following code.

musicPlayer.name = some namespace
musicPlayer.volume = 70

I establish a connection with the project using the command:

<context:property-placeholder location="classpath:musicPlayer.properties"/>

Then I put the parameters in

<bean id="musicPlayer"

          class="ru.dyupich.course.TheMusicInterfaceRealisation.MusicPlayer">
        <property name="music" ref="musicBean"/>
        <property name="name" value="%{musicPlayer.name}"/>
        <property name="volume" value="%{musicPlayer.volume}"/>
    </bean>

However, the values ​​are not read and are underlined in red (the String value is underlined as normal). How can this be resolved?
I am attaching screenshots below.