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.
<plugin>
<groupId>com.jayway.maven.plugins.android.generation2</groupId>
<artifactId>android-maven-plugin</artifactId>
<version>3.6.0</version>
<configuration>
<androidManifestFile>src/main/other/AndroidManifest.xml</androidManifestFile>
<resourceDirectory>src/main/resources</resourceDirectory>
<sourceDirectory>src/main/java</sourceDirectory>
<sdk>
<platform>17</platform>
<path>/opt/android-sdk/</path>
</sdk>
<manifest>
<debuggable>true</debuggable>
</manifest>
</configuration>
<extensions>true</extensions>
</plugin>