It's moved to:
path/to/your/android-sdk/build-tools/17.0.0/...
I'm assuming this it to ad versioning to the build tools.
We need the android-maven-plugin to do a fix! As its looking for the files under platform-tools/...
which of course they are not anymore.
Update - Fixed
Update your pom.xml to 3.6.0
(or greater). The android-maven-plugin has been updated to support the new structure.
See 3.6.0 Released
<plugin>
<groupId>com.jayway.maven.plugins.android.generation2</groupId>
<artifactId>android-maven-plugin</artifactId>
<version>3.6.0</version>
<inherited>true</inherited>
<configuration>
<sdk>
<platform>${android.platform}</platform>
</sdk>
</configuration>
</plugin>
Temp Fix (Old - See Fix)
As mentioned by the OP, copy the files from /build-tools/17.0.0/...
to /platform-tools
until the maven plugin is fixed.
For unix users
cp -r build-tools/17.0.0/* platform-tools/
From your android sdk folder.