When I call mnesia:create_schema on startup, the program crashes. If I run my program in ebin without releasing it, it works find. The error log as follows:
=INFO REPORT==== 3-Jul-2013::09:44:06 ===
application: eddy
exited: {bad_return,
{{eddy_app,start,[normal,[]]},
{'EXIT',
{{badmatch,
{error,
{'EXIT',
{undef,
[{mnesia_backup,open_write,
["/home/cometeor/eddy/rel/eddy/Mnesia.eddy@127.0.0.1/eddy@127.0.0.1137284464686415846847780"],
[]},
{mnesia_bup,do_apply,4,
[{file,"mnesia_bup.erl"},{line,387}]},
{mnesia_bup,make_initial_backup,3,
[{file,"mnesia_bup.erl"},{line,378}]},
{mnesia_bup,create_schema,2,
[{file,"mnesia_bup.erl"},{line,348}]},
{eddy_database,start,0,
[{file,"src/eddy_database.erl"},{line,24}]},
{eddy_app,start,2,[{file,"src/eddy_app.erl"},{line,16}]},
{application_master,start_it_old,4,
[{file,"application_master.erl"},{line,274}]}]}}}},
[{eddy_database,start,0,
[{file,"src/eddy_database.erl"},{line,24}]},
{eddy_app,start,2,[{file,"src/eddy_app.erl"},{line,16}]},
{application_master,start_it_old,4,
[{file,"application_master.erl"},{line,274}]}]}}}}
Resolved.Must add
{app, mnesia, [{mod_cond, app}]},
to reltool.config.
来源：https://stackoverflow.com/questions/17444760/erlang-mnesia-can-not-create-schema-while-release-with-rebar