In the last release of android sdk directory structure has changed. Build tools like aapt or dex has been moved from platform-tools to build-tools directory. Support for new directory structure was added in maven-android-plugin version 3.6.0. Changing plugin version to 3.6.0 in pom.xml must help.

                 
      
       com.jayway.maven.plugins.android.generation2
                  
      
       android-maven-plugin
                  
      
       3.6.0
                  
                      
       
        src/main/other/AndroidManifest.xml
                       
       
        src/main/resources
                       
       
        src/main/java
                       
                           
        
         17
                            
        
         /opt/android-sdk/
                        
                       
                           
        
         true
                        
                   
                  
      
       true