Loading BuildTools version: git-BuildTools-27d3fbd-54 (#54)
BuildTools
unconfigured@null.spigotmc.org
Attempting to build version: '1.5.2' use --rev <version> to override
Could not get version 1.5.2 does it exist? Try another version or use 'latest'
java.io.FileNotFoundException: https://hub.spigotmc.org/versions/1.5.2.json
        at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
        at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
        at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(Unknown Source)
        at org.spigotmc.builder.Builder.get(Builder.java:479)
        at org.spigotmc.builder.Builder.main(Builder.java:234)