我已经配置好cuda驱动，以及节点参数配置，然后运行开始节点命令bin/epoch start， 但是运行之后没有任何反应。这是我在log目录中打开epoch.log文件，所看到的错误信息：
Application lager started on node epoch@localhost
2018-11-30 12:53:17.202 [info] <0.958.0> Application aens started on node epoch@localhost
2018-11-30 12:53:17.202 [info] <0.958.0> Application aecontract started on node epoch@localhost
2018-11-30 12:53:17.203 [info] <0.958.0> Application aeoracle started on node epoch@localhost
2018-11-30 12:53:17.203 [info] <0.958.0> Application aecuckoo started on node epoch@localhost
2018-11-30 12:53:17.203 [error] <0.1061.0>@gen_server:init_it:357 CRASH REPORT Process exec with 0 neighbours exited with reason: bad return value: "Port program /tmp/node/lib/erlexec-1.7.1/priv/x86_64-u$
2018-11-30 12:53:17.204 [error] <0.1060.0> Supervisor exec_app had child exec started with exec:start_link([]) at undefined exit with reason bad return value: "Port program /tmp/node/lib/erlexec-1.7.1/pr$
2018-11-30 12:53:17.204 [error] <0.1058.0> CRASH REPORT Process <0.1058.0> with 0 neighbours exited with reason: {{shutdown,{failed_to_start_child,exec,{bad_return_value,"Port program /tmp/node/lib/erlex$
2018-11-30 12:53:17.204 [info] <0.958.0> Application erlexec exited with reason: {{shutdown,{failed_to_start_child,exec,{bad_return_value,"Port program /tmp/node/lib/erlexec-1.7.1/priv/x86_64-unknown-lin$
请大家帮我看看，这个如何解决