Problems trying to enable/start custom target in systemd

问题

i create a target file to group all my personal services in my fedora 18, i tested the services and i can start then individually, but if i try to enable the target i got a error message!

[root@ghostrider system]# systemctl enable developer.target
Failed to issue method call: Invalid argument

And here the target code:

###########################################################################
# Target para ativar servicos de desenvolvimento em Java
###########################################################################
#/etc/systemd/system/developer.target

[Unit]
Description=Processes Java
After=default.target

[Install]
Alias=developer.target

I really don't understand what that message means, any clues?

回答1:

You have an Alias with the same name as the unit (developer.target). This caused the same issue for me while writing a service file. It is completely redundant, so just remove it.

回答2:

systemd will create symlink in /etc/systemd/system/xxx.target.wants, if your /etc/systemd/system/xxx.target.wants/xxx.service is not a symlink, systemd can not create symlink, it will throw this error.

please clean your /etc/systemd/system/xxx.target.wants/ dir.

来源：https://stackoverflow.com/questions/20425069/problems-trying-to-enable-start-custom-target-in-systemd