Not able to resolve snapshots for Heros and Soot when running mvn install

[zjbthomas]

Hi, when I ran mvn -DskipTests install to build FlowDroid, it shows the following error message:

Failed to execute goal on project soot-infoflow: 
Could not resolve dependencies for project de.tud.sse:soot-infoflow:jar:2.7.3-SNAPSHOT: 
The following artifacts could not be resolved: de.upb.cs.swt:heros:jar:1.2.0-SNAPSHOT, ca.mcgill.sable:soot:jar:4.1.0-SNAPSHOT: 
Could not find artifact de.upb.cs.swt:heros:jar:1.2.0-SNAPSHOT in sonatype-snapshot (https://oss.sonatype.org/content/repositories/snapshots)

Could you please have a look at this issue? Thank you!