perfdata-receiver doesn't compile

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[INFO] Building perfdata-receiver 1.0.1-SNAPSHOT
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[INFO] 
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ perfdata-receiver ---
[WARNING] Using platform encoding (UTF-8 actually) to copy filtered resources, i.e. build is platform dependent!
[INFO] skip non existing resourceDirectory /Users/agalue/Development/opennms/git/develop/opennms-tools/perfdata-receiver/src/main/resources
[INFO] 
[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ perfdata-receiver ---
[INFO] Changes detected - recompiling the module!
[WARNING] File encoding has not been set, using platform encoding UTF-8, i.e. build is platform dependent!
[INFO] Compiling 1 source file to /Users/agalue/Development/opennms/git/develop/opennms-tools/perfdata-receiver/target/classes
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[ERROR] COMPILATION ERROR : 
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[ERROR] /Users/agalue/Development/opennms/git/develop/opennms-tools/perfdata-receiver/src/main/java/org/opennms/rrd/utils/PerfDataReceiver.java:[89,159] cannot access com.google.protobuf.MessageOrBuilder
class file for com.google.protobuf.MessageOrBuilder not found
[ERROR] /Users/agalue/Development/opennms/git/develop/opennms-tools/perfdata-receiver/src/main/java/org/opennms/rrd/utils/PerfDataReceiver.java:[93,92] cannot find symbol
symbol: method getValueCount()
location: variable message of type org.opennms.netmgt.rrd.tcp.PerformanceDataProtos.PerformanceDataReading
[ERROR] /Users/agalue/Development/opennms/git/develop/opennms-tools/perfdata-receiver/src/main/java/org/opennms/rrd/utils/PerfDataReceiver.java:[97,94] cannot find symbol
symbol: method getValue(int)
location: variable message of type org.opennms.netmgt.rrd.tcp.PerformanceDataProtos.PerformanceDataReading
[INFO] 3 errors 
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[INFO] BUILD FAILURE
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[INFO] Total time: 1.002 s
[INFO] Finished at: 2018-04-26T11:11:58-04:00
[INFO] Final Memory: 21M/309M
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[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.1:compile (default-compile) on project perfdata-receiver: Compilation failure: Compilation failure: 
[ERROR] /Users/agalue/Development/opennms/git/develop/opennms-tools/perfdata-receiver/src/main/java/org/opennms/rrd/utils/PerfDataReceiver.java:[89,159] cannot access com.google.protobuf.MessageOrBuilder
[ERROR] class file for com.google.protobuf.MessageOrBuilder not found
[ERROR] /Users/agalue/Development/opennms/git/develop/opennms-tools/perfdata-receiver/src/main/java/org/opennms/rrd/utils/PerfDataReceiver.java:[93,92] cannot find symbol
[ERROR] symbol: method getValueCount()
[ERROR] location: variable message of type org.opennms.netmgt.rrd.tcp.PerformanceDataProtos.PerformanceDataReading
[ERROR] /Users/agalue/Development/opennms/git/develop/opennms-tools/perfdata-receiver/src/main/java/org/opennms/rrd/utils/PerfDataReceiver.java:[97,94] cannot find symbol
[ERROR] symbol: method getValue(int)
[ERROR] location: variable message of type org.opennms.netmgt.rrd.tcp.PerformanceDataProtos.PerformanceDataReading
[ERROR] -> [Help 1]
[ERROR] 
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR] 
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException
[ERROR] child exited with value 1