mule-devkit-maven-plugin:3.8.0 or one of its dependencies could not be resolved

Hi All,

*While building custom connector demo, i am facing below issue -

[INFO] Scanning for projects...

[ERROR] [ERROR] Some problems were encountered while processing the POMs:

[ERROR] Unresolveable build extension: Plugin org.mule.tools.devkit:mule-devkit-maven-plugin:3.8.0 or one of its dependencies could not be resolved: Could not find artifact com.sun:tools:jar:1.6 at specified path C:\Program Files\Java\jre1.8.0_77/../lib/tools.jar @

[ERROR] Unknown packaging: mule-module @ line 8, column 16

@

[ERROR] The build could not read 1 project -> [Help 1]

[ERROR]

[ERROR] The project org.mule.modules:barn-connector:1.0.0-SNAPSHOT (D:\Amit\workspace\barn-connector\pom.xml) has 2 errors

[ERROR] Unresolveable build extension: Plugin org.mule.tools.devkit:mule-devkit-maven-plugin:3.8.0 or one of its dependencies could not be resolved: Could not find artifact com.sun:tools:jar:1.6 at specified path C:\Program Files\Java\jre1.8.0_77/../lib/tools.jar -> [Help 2]

[ERROR] Unknown packaging: mule-module @ line 8, column 16

[ERROR]

[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.

[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 read the following articles:

[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/ProjectBuildingException

[ERROR] [Help 2] http://cwiki.apache.org/confluence/display/MAVEN/PluginManagerException*

Please help me on this