no other details, no nothing.
Sadly those words all too fittingly describe your post as well. You have not provided even a shred of system info nor explained what you actually do like what files you are trying to export using what settings to where.
No need to be sarcastic and rude - I've clearly never done this before and would loved to have contacted someone at Adobe directly, but it's impossible to get in touch with anyone.
I'm exporting files to JPEG's from Lightroom and I've directly to my computer hard drive as well as to my external hard drive, both are hit and miss. JPEG settings are Quality @ 60, 300 Pixels per cm, sharpened for Matte paper, and have attached a watermark.
The error message says you have insufficient memory. You probably ought to believe it.
You still haven't given us much to go on.
What operating system are you using? What version of Lightroom? Is your OS 32- or 64-bit? And how much RAM does your computer have? Please answer all of those questions.
Windows 7 Professional
32 bit OS
4GB of Ram.
I've read the specs for Lightroom, it says you need a minimum of 2GB of Ram to run it, 8GB would be optimal. The reason why this doesn't make any sense is because if you keep trying to export, 9/10 times it says it's failed but it will export that one photo on the 10th time. No idea why it picks and chooses when it wants to work.
The first thing I would do is try a 64 bit operating system with 8GB of RAM memory
minimum requirements are from sales people, optimal ones form the working people...
Try to close all other (backgroud) programs.
Which camera you are using? Try to export with diffent settings. (Why only @60 when you want to print?, Why sharpen for Mate if you want to e-mail?) If you want to print, I would use TIFF. Try to export images in smaler packages (2x 50 pictures, instead of one 100 pictures job).
Try to disable the wateramarking.
If you are running on a 32-bit system, LR will limit itself to slightly less than 1 GB, no matter how much RAM is attached to the computer. Paige is right: you need to install a 64-bit operating system. Memory is pretty cheap. You'd be doing yourself a favour by increasing that to 8GB.
LR 5 still runs fine on 32 bits systems!
You're wrong according to Adobe:
Run Lightroom in 64-bit mode (Lightroom 4 and 3)
If you run Lightroom in 64-bit mode, it has access to more than 2 GB of RAM, which is the ceiling for 32-bit operating systems. Giving Lightroom access to more than 4 GB of RAM can significantly improve performance.
But Lightroom PERFORMANCE will be enhanced with more memory and a 64 bits OS.
What were the specs of the machine Lightroom was installed on originally? What is the free disk space? (ALL disks attached please, but especially important for the system disk).
What is special with the picture when it works? Fresh start of the program/machine?
To the OP-
Quality @ 60, 300 Pixels per cm
That is ~750ppi (pixels per inch).!
And if you are specifying a re-size for a large print dimensions, (upsizing), then your output jpg is possibly very large in pixel size.
The OP created an account on Sept 22, 2014 and never logged on again since Sept 23, 2014. Either the problem was solved or they gave up. No use trying to solve it now.