RegistrationRobot file is missing in repository

Previously everything compiled fine for me until I decided to update.

compile:
[echo] Compiling box
[javac] Compiling 5 source files to /wload/wave/wave_svn/build/src
[javac] /wload/wave/wave_svn/src/org/waveprotocol/box/server/ServerMain.java:48: package org.waveprotocol.box.server.robots.agent.registration does not exist
[javac] import org.waveprotocol.box.server.robots.agent.registration.RegistrationRobot;
[javac] ^
[javac] /wload/wave/wave_svn/src/org/waveprotocol/box/server/ServerMain.java:253: cannot find symbol
[javac] symbol : variable RegistrationRobot
[javac] location: class org.waveprotocol.box.server.ServerMain
[javac] server.addServlet(RegistrationRobot.ROBOT_URI + "/*", RegistrationRobot.class);
[javac] ^
[javac] /wload/wave/wave_svn/src/org/waveprotocol/box/server/ServerMain.java:253: cannot find symbol
[javac] symbol : class RegistrationRobot
[javac] location: class org.waveprotocol.box.server.ServerMain
[javac] server.addServlet(RegistrationRobot.ROBOT_URI + "/*", RegistrationRobot.class);
[javac] ^
[javac] 3 errors

BUILD FAILED
/wload/wave/wave_svn/build.xml:234: The following error occurred while executing this line:
/wload/wave/wave_svn/build-common.xml:30: The following error occurred while executing this line:
/wload/wave/wave_svn/build-macros.xml:70: Compile failed; see the compiler error output for details.