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erlangrebar

Configuring Lager - I get this error: undefined parse transform 'lager_transform'

I'm testing this https://github.com/saleyn/erws_example on R16B03 (both on windows & Ubuntu)

==> erws_example (compile)
src/erws_handler.erl:none: undefined parse transform 'lager_transform'
ERROR: compile failed while processing /home/charles/erws_example: rebar_abort

I've seen this suggestion http://philipcristiano.com/2013/05/27/ordering-of-rebar-dependencies.html

So far, i'm unable to get any headway.

Thanks.

Solution

  • It seems rebar can not compile parse transforms before compiling everything else (https://github.com/basho/rebar/issues/270). The solution is to compile module with parse transform manually or use file-level parse_transform compiler directive instead of project level.