I get the following error when attempting to install maven, with "mvn clean install" command:
Failed to execute goal com.simpligility.maven.plugins:android-maven-plugin:4.2.1:
generate-sources (default-generate-sources) on project compatibility-v7-gridlayout: 
Execution default-generate-sources of goal com.simpligility.maven.plugins:android-maven-plugin:4.2.1:
generate-sources failed: Invalid SDK: 
Platform/API level 23 not available. This command should give you all you need:
D:\Program Files\adt-bundle-windows-x86_64-20140321\sdk\tools\android 
update sdk --no-ui --obsolete --force
I ran the command suggested, with no effect.
Looking in the Android SDK Manager, I see that I have Android SDK Platform-tools 23.0.1, Android SDK Build-tools 23.0.1. I tried uninstalling and reinstalling these, with no effect.
Environment variables are set so:
set M2_HOME=D:\Program Files\apache-maven-3.3.3  
set PATH=%PATH%;D:\Program Files\apache-maven-3.3.3\bin  
set ANDROID_HOME=D:\Program Files\adt-bundle-windows-x86_64-20140321\sdk  
pom.xml:
<parent>
  <groupId>com.simpligility.maven</groupId>
  <artifactId>progressive-organization-pom</artifactId>
   <version>3.0.0</version>
</parent>
   ...
    <plugins>
      <plugin>
        <groupId>com.simpligility.maven.plugins</groupId>
        <artifactId>android-maven-plugin</artifactId>
        <configuration>
          <sdk>
            <platform>${android.sdk.platform}</platform>
          </sdk>
        </configuration>
      </plugin>
    </plugins>
I have read:
Invalid SDK: Platform/API level 19 not available
MAVEN Invalid SDK: Platform/API level 16 not available
One suggestion there is to set the  to a specific number, whereas the existing code in the pom uses ${android.sdk.platform}, which I think would be better, i.e. more maintainable. Regardless, changing it to 23 has no effect.
Windows 7
What can I do?
Edit ---------------------------------------
Changing the maven version in the pom file to <version>3.3.3</version> causes this error:  
Non-resolvable parent POM for com.simpligility.android.sdk-deployer:maven-android-sdk-deployer:2.8.0: 
Failure to find com.simpligility.maven:progressive-organization-pom:pom:3.3.3 
in https://repo.maven.apache.org/maven2 was cached in the local repository,