[英]Could not start release with rebar generate epgsql
当我使用钢筋生成发布应用程序并尝试通过键盘控制台启动它时,出现错误
{“初始化在do_boot中终止”,{'无法加载',pgsql,get_file}}。
在所有文件app.src和reltool.config中,我都添加了epgsql应用程序。
app.src:
{application, leasing,
[
{description, ""},
{vsn, "1"},
{registered, []},
{applications, [
kernel,
stdlib,
crypto,
ssl,
public_key,
epgsql,
amqp_client,
rabbit_common
]},
{mod, { leasing_app, []}},
{env, []}
]}.
reltool.config
{sys, [
{lib_dirs, ["../deps", "../apps"]},
{erts, [{mod_cond, derived}, {app_file, strip}]},
{app_file, strip},
{rel, "leasingnode", "1",
[
kernel,
stdlib,
sasl,
crypto,
ssl,
public_key,
epgsql,
amqp_client,
rabbit_common,
leasing
]},
{rel, "start_clean", "",
[
kernel,
stdlib
]},
{boot_rel, "leasingnode"},
{profile, embedded},
{incl_cond, exclude},
{excl_archive_filters, [".*"]}, %% Do not archive built libs
{excl_sys_filters, ["^bin/.*", "^erts.*/bin/(dialyzer|typer)",
"^erts.*/(doc|info|include|lib|man|src)"]},
{excl_app_filters, ["\.gitignore"]},
{app, sasl, [{incl_cond, include}]},
{app, stdlib, [{incl_cond, include}]},
{app, kernel, [{incl_cond, include}]},
{app, crypto, [{incl_cond, include}]},
{app, ssl, [{incl_cond, include}]},
{app, public_key, [{incl_cond, include}]},
{app, epgsql, [{incl_cond, include}]},
{app, amqp_client, [{incl_cond, include}]},
{app, rabbit_common, [{incl_cond, include}]},
{app, leasing, [{incl_cond, include}]}
]}.
{target_dir, "leasingnode"}.
{overlay, [
{mkdir, "log/sasl"},
{copy, "files/erl", "\{\{erts_vsn\}\}/bin/erl"},
{copy, "files/nodetool", "\{\{erts_vsn\}\}/bin/nodetool"},
{copy, "files/leasingnode", "bin/leasingnode"},
{copy, "files/leasingnode.cmd", "bin/leasingnode.cmd"},
{copy, "files/start_erl.cmd", "bin/start_erl.cmd"},
{copy, "files/install_upgrade.escript", "bin/install_upgrade.escript"},
{copy, "files/sys.config", "releases/\{\{rel_vsn\}\}/sys.config"},
{copy, "files/vm.args", "releases/\{\{rel_vsn\}\}/vm.args"}
]}.
当我从erl shell启动它时一切正常,但是当我生成发行版时,我出错了。 当我关闭epgsql应用程序时,启动正常,我看到所有应用程序(加密,ssl,public_key都已加载),但是如果再次添加epgsql,则会出错。
我究竟做错了什么?
我本人也在同一个问题上挣扎。 我发现,即使我将epgsql依赖项放入应用程序文件中,但未在代码中使用其任何模块,但epgsql应用程序也不包含在发行版中。 事实证明这不是钢筋的问题。 引擎盖下的钢筋使用reltool。 这是一个reltool,实际上生成了发行版,在我看来,它使用了来自束文件的某些信息,并且本身剥离了未使用的应用程序。
因此,要解决此问题,我想出了两种方法:
实际上,这是一个普遍的问题,并且与epgsql无关。
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