Issue with importing the library #12

[ERROR] Failed to execute goal on project av-lwm2m-bs: Could not collect dependencies for project net.airvantage.lwm2mbs:av-lwm2m-bs:jar:1.0.0-SNAPSHOT
[ERROR] Failed to read artifact descriptor for net.airvantage:proxy-socket-core:jar:1.0.0
[ERROR] 	Caused by: The following artifacts could not be resolved: net.airvantage:proxy-socket-java:pom:${revision} (absent): Could not find artifact net.airvantage:proxy-socket-java:pom:${revision} in repo (...)
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