Couldn't install ReDBox / Mint 1.8

[UWS_Amar]

Hello ,
I tried to install Mint / ReDBox 1.8 from (https://github.com/redbox-mint/mint-build-distro; https://github.com/redbox-mint/redbox-build-distr).
Installation process seems alright but we I tried to access mint application thro' browser, I got the following error message:

URL: http:// ********.uws.edu.au:9001/mint

HTTP ERROR 500

Problem accessing /mint/. Reason:

    java.lang.ClassNotFoundException: caught an exception while obtaining a class file for org.apache.tapestry5.corelib.pages.ExceptionReport

Caused by:

java.lang.RuntimeException: java.lang.ClassNotFoundException: caught an exception while obtaining a class file for org.apache.tapestry5.corelib.pages.ExceptionReport

        at org.apache.tapestry5.internal.services.ComponentInstantiatorSourceImpl.findClass(ComponentInstantiatorSourceImpl.java:300)

        at org.apache.tapestry5.internal.services.ComponentInstantiatorSourceImpl.getInstantiator(ComponentInstantiatorSourceImpl.java:276)

        at $ComponentInstantiatorSource_14a74e2c4da.getInstantiator($ComponentInstantiatorSource_14a74e2c4da.java)

        at org.apache.tapestry5.internal.pageload.PageLoaderImpl.createAssembler(PageLoaderImpl.java:193)

        at org.apache.tapestry5.internal.pageload.PageLoaderImpl.getAssembler(PageLoaderImpl.java:183)

        at org.apache.tapestry5.internal.pageload.PageLoaderImpl.loadPage(PageLoaderImpl.java:157)

        at $PageLoader_14a74e2c50b.loadPage($PageLoader_14a74e2c50b.java)

        at org.apache.tapestry5.internal.services.PagePoolCache.checkout(PagePoolCache.java:210)

        at org.apache.tapestry5.internal.services.PagePoolImpl.checkout(PagePoolImpl.java:99)

        at $PagePool_14a74e2c50a.checkout($PagePool_14a74e2c50a.java)

For detailed error listing, please check the attached error doc.

Any help in resolving this issue or any 1.8 installation instruction to override this issue is most appreciated. Thank you.

Regards,
Amar.
University of Western Sydney.