How to fix the problem of "Cannot open display"?

[Ryan Schmidt]

On Oct 5, 2009, at 13:39, Rainer Müller wrote:

> Peng Yu wrote:
>> On Sun, Oct 4, 2009 at 10:05 PM, Ryan Schmidt <ryandesign at macports.org 
>> > wrote:
>>> launchctl load -w /Library/LaunchAgents/org.freedesktop.dbus- 
>>> session.plist
>>>
>>> So run that command (not as sudo).
>>
>> Here is what I got after running the command that you mentioned.
>> What's the problem?
>>
>> $sudo port install dbus
>> Password:
>> --->  Computing dependencies for dbus
>> --->  Cleaning dbus
>> $ launchctl load -w /Library/LaunchAgents/org.freedesktop.dbus- 
>> session.plist
>> launchctl: CFURLWriteDataAndPropertiesToResource(/Library/ 
>> LaunchAgents/org.freedesktop.dbus-session.plist)
>> failed: -10
>> $ls /Library/LaunchAgents/org.freedesktop.dbus-session.plist
>> /Library/LaunchAgents/org.freedesktop.dbus-session.plist
>
> The -w option requires write access to that file what you usually do  
> not
> have as a normal user. It is used to remove the Disabled key from  
> the file.

So the instructions the port prints out are wrong? Is there a way to  
correct them? It sounds like you're saying you need "sudo" to have  
access to write the changes to the plist, but I remember from prior  
discussions that this would cause the launchagent to be running as  
root, when in fact we want the launchagent running as the current user.


> Alternatively you can force the load like this:
> $ launchctl load -F /Library/LaunchAgents/org.freedesktop.dbus- 
> session.plist