perl - Internal Error In templates -

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my tt2 ( template toolkit 2) causes error due absence of plugin, possible cause ?

the error reads

error 500 - internal server error  plugin error - yaml: plugin not found  powered dancer2 0.159001

is there way of making message little clear?

i hope clear server, running perl dancer, missing module required web application tun. agree far clear messages module missing.

it not, might expect, either yaml or dancer2::session::yaml template toolkit plugin module template::plugin::yaml. install on server , should go.


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