while development is ongoing @ magento developer need to see what’s going wrong …while we see Exception printing is disabled by default for security reasons. … such message.

to enable this error display follow

1. Go MagentoRoot/errors/

2. Copy local.xml.sample – and create local.xml @ MagentoRoot/errors/local.xml

Now the error message will show and you can easy debug the system. Very easy 🙂 hah