Could not resolve dependencies for project org.apache.dubbo:dubbo-admin-server:jar:0.7.0-SNAPSHOT

mvn clean package dubbo-admin\dubbo-admin-server时报错

[ERROR] Failed to execute goal on project dubbo-admin-server: Could not resolve dependencies for project org.apache.dubbo:dubbo-admin-server:jar:0.7.0-SNAPSHOT: The following artifacts could not be resolved: org.apache.dubbo:dubbo-admin-ui:jar:0.7.0-SNAPSHOT (absent): org.apache.dubbo:dubbo-admin-ui:jar:0.7.0-SNAPSHOT was not found in https://repository.apache.org/content/repositories/snapshots during a previous attempt. This failure was cached in the local repository and resolution is not reattempted until the update interval of apache.snapshots.https has elapsed or updates are forced -> [Help 1]

Start by reproducing the reported `mvn clean package dubbo-admin\dubbo-admin-server` command and inspect the Maven dependency declarations for `dubbo-admin-server` and `dubbo-admin-ui`. The work is done when the `org.apache.dubbo:dubbo-admin-ui:jar:0.7.0-SNAPSHOT` dependency resolves and the package command completes successfully.

Written by the indexing model from the issue text.