[Building Sakai] mvn clean install error

[yousef omari]

hello iam new sakai develpoer >> i have this error  and i need a help


INFO] Final Memory: 93M/336M
[INFO]
------------------------------------------------------------------------
[ERROR] Failed to execute goal on project core-deploy: Could not resolve
depende
ncies for project org.sakaiproject:core-deploy:pom:2.9-SNAPSHOT: Failure to
find
 org.sakaiproject.basiclti:basiclti-assembly:zip:tomcat-overlay:2.1.2-SNAPSHOT
i
n http://source.sakaiproject.org/maven2-snapshots was cached in the local
reposi
tory, resolution will not be reattempted until the update interval of
sakai-mave
n2-snapshots has elapsed or updates are forced -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e
swit
ch.
[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 rea
d the following articles:
[ERROR] [Help 1]
http://cwiki.apache.org/confluence/display/MAVEN/DependencyReso
lutionException
[ERROR]
[ERROR] After correcting the problems, you can resume the build with the
command

[ERROR] mvn <goals> -rf :core-deploy




can any body help please??|



-- 
Yousef Omari
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