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Lightning: Not saving sample component file provided by SFDC

I'm following the examples in but when I tried to save the contactList.cmp code in step 2, it threw an error:

Failed to save undefined: An unexpected error occurred. Please include this ErrorId if you contact support: 2024919742-80507 (-1984777881)

I did what was suggested in step 1: to replace namespace with my own namespace, but still it wouldn't save the file: contactList.cmp. Pls advise.
ShashankShashank (Salesforce Developers) 
If you are still facing this issue, please email me at with your org Id and I can check the error number for you. Please reference this post in the email.
I've encountered the similar error a few times since I started experimenting with Lightning a few days ago. Perfectly valid components cannot be saved in the Developer Console.
Tamas, here's Shashank's response, hope this helps:

Here's what the error message says. Please see if makes sense to you:
"No COMPONENT named outputTextArea found"

From what I see internally, outputtextarea was not properly exposed, and this is scheduled to be fixed with the Spring 15 release. Please check if it gets fixed with the spring 15 release. Here's the release schedule:

Thank you very much for the useful information. Actually I figured out that I had a problem with long custom object names as Lightning apparently doesn't manage them very well. I started a new topic about this issue: