Unable to add module to the current project as it is not of packaging type ‘pom’

I modified two places. You can have a try,
1. My original java version number was 15.0. Later, I added it completely according to version number 15 under Java – variant

<!-- java version --> 
  <profile>
      <id>jdk-15</id>
      <activation>
	    <activeByDefault>true</activeByDefault>
        <jdk>15</jdk>
      </activation>

      <properties>
        <maven.compiler.source>15</maven.compiler.source>
		<maven.compiler.target>15</maven.compiler.target>
		<maven.compiler.compilerVersion>15</maven.compiler.compilerVersion>
      </properties>
  </profile>

I suggest you complete it

2. I wrote a POM myself in the original project directory, and I deleted it
the second one I tested. The pom.xml file cannot be found in the directory where the project is to be created
then run the generate command to successfully create the project