Build fails if clean is not specified.

[iocanel]

[INFO]
[INFO] Syndesis Connectors :: Project ..................... SUCCESS [ 0.436 s]
[INFO] Syndesis Connectors :: Components .................. SUCCESS [ 0.012 s]
[INFO] Syndesis Connectors :: HTTP Component .............. SUCCESS [ 0.839 s]
[INFO] Syndesis Connectors :: Connectors .................. SUCCESS [ 0.007 s]
[INFO] Syndesis Connectors :: HTTP GET Connector .......... SUCCESS [ 1.144 s]
[INFO] Syndesis Connectors :: HTTP POST Connector ......... SUCCESS [ 0.285 s]
[INFO] Syndesis Connectors :: Timer Connector ............. FAILURE [ 0.023 s]
[INFO] Syndesis Connectors :: Twitter Mention Connector ... SKIPPED
[INFO] Syndesis Connectors :: Twitter Search Connector .... SKIPPED
[INFO] Syndesis Connectors :: Salesforce Model ............ SKIPPED
[INFO] Syndesis Connectors :: Salesforce Create SObject Connector SKIPPED
[INFO] Syndesis Connectors :: Salesforce Delete SObject Connector SKIPPED
[INFO] Syndesis Connectors :: Salesforce Delete SObject With ID Connector SKIPPED
[INFO] Syndesis Connectors :: Salesforce Get SObject Connector SKIPPED
[INFO] Syndesis Connectors :: Salesforce Get SObject With ID Connector SKIPPED
[INFO] Syndesis Connectors :: Salesforce Update SObject Connector SKIPPED
[INFO] Syndesis Connectors :: Salesforce Upsert SObject Connector SKIPPED
[INFO] Syndesis Connectors :: Salesforce Upsert Contact Connector SKIPPED
[INFO] Syndesis Connectors :: Salesforce on Create Connector SKIPPED
[INFO] Syndesis Connectors :: Salesforce on Update Connector SKIPPED
[INFO] Syndesis Connectors :: Salesforce on Delete Connector SKIPPED
[INFO] Syndesis Connectors :: Sql Stored Connector ........ SKIPPED
[INFO] Syndesis Connectors :: Day Trade Get Connector ..... SKIPPED
[INFO] Syndesis Connectors :: Day Trade Place Connector ... SKIPPED
[INFO] Syndesis Connectors :: Trade Insight Buy Connector . SKIPPED
[INFO] Syndesis Connectors :: Trade Insight Sell Connector SKIPPED
[INFO] Syndesis Connectors :: Trade Insight Top Connector . SKIPPED
[INFO] Syndesis Connectors :: Connector Verify ............ SKIPPED
[INFO] Syndesis Connectors :: Examples .................... SKIPPED
[INFO] Syndesis Connectors :: Http Pull Push Example ...... SKIPPED
[INFO] Syndesis Connectors :: Twitter Salesforce Example .. SKIPPED
[INFO] Syndesis Connectors :: Trade Buy Place Example ..... SKIPPED
[INFO] Syndesis Connectors :: Twitter Search Example ...... SKIPPED
[INFO] Syndesis Connectors :: HTTP Ping Check Example ..... SKIPPED
[INFO] Syndesis Connectors :: Salesforce Ping Check Example SKIPPED
[INFO] Syndesis Connectors :: Twitter Ping Check Example .. SKIPPED
[INFO] Syndesis Connectors :: Sql Stored Example .......... SKIPPED
[INFO] Syndesis Connectors :: Catalog ..................... SKIPPED
[INFO] Syndesis Connectors :: Catalog Example ............. SKIPPED
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 4.240 s
[INFO] Finished at: 2017-10-12T13:52:22+03:00
[INFO] Final Memory: 116M/2874M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.camel:camel-package-maven-plugin:2.20.0.fuse-000101:validate-components (validate) on project timer-connector: Validating failed, see errors above! -> [Help 1]
[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/MojoFailureException
[ERROR]
[ERROR] After correcting the problems, you can resume the build with the command
[ERROR] mvn -rf :timer-connector