P: Edit In External Editor does not work/function

You can add me to the list of those who can't launch an external editor. I have tried everything to add PS Elements as my editing but get the same error. I was the reply with the workaround of installing the free Trial Version of PSE10 or CS5. I don't quite understand that though because I have PSE10 (registered). Or is that implynig if I uninstall and reinstall my problems will disappear?

Thanks

I had the same problem with LR4 and plugins from Topaz. I have PS3 and am not interested in downloading PS5. Here is what I sent to Topaz and their response:

I followed instructions for removing old versions of Fusion Express and reinstalled. I purchased two plugins as well today,Topaz Adjust and Star Effects. When I attempt to edit photo in Lightroom 4 by selecting a photo, then choosing Photo, edit in, Fusion Express2 64bit, I receive the message Unexpected error performing command: bad argument #1 to \'lower\'(string expected, got nil). I have 6GB of RAM on a Dell N5010 laptop with an Intel i5 2.53Ghz processor, using Windows 7 64bit.

Response from Topaz help:

Hello,

It seems that the issue with Plug-ins and there compatibility is on Adobe's end, and supposedly they are going to be releasing a new version on LR4 that is compatible (a 4.1 version) asap.

Please see here for more info: http://feedback.photoshop.com/photosh...

Let me know if you have any other questions.

I installed the ACR 2.7RC (release candidate) and that solved the problem...at least for edit in-> CS5

Since some of us were forced to do the rather long and voluminous download of CS5 just to straighten the kink that Lightroom 4 has put into our lives, I believe the correct thing (besides making the fix to Lr4 available ASAP) would be for Adobe to allow us to keep CS5 as compensation.

I don't know about others, but in my case this has taken quite a few hours out of my life!
I rather think that my time is as valuable as Adobe time!

Since some of us were forced to do the rather long and voluminous download of CS5 just to straighten the kink that Lightroom 4 has put into our lives, I believe the correct thing (besides making the fix to Lr4 available ASAP) would be for Adobe to allow us to keep CS5 as compensation.

I don't know about others, but in my case this has taken quite a few hours out of my life!
I rather think that my time is as valuable as Adobe time!

I am not even using CS5. Haven't even opened it. As to how it fixes the problem, i have NO idea. All I know is it works! All my Nik and PSE exports and "Edit In..." functions now work after the CS5 trial installation.

I'm confused. How is downloading Photoshop CS5 a work-around for getting to PSE 10 from LR4?

Julie - thank you for your reply and the update. It's refreshing when companies respond and engage and keep their customers up to date. Godspeed!

Lightroom 4 doesn't let me take in the edited photo to CS5 from lightroom.

Decided to stick with LR3 also until this problem is sorted out. This will no doubt go down as a low point in Adobe's history.