| 
			
			 | 
		#1 | 
| 
			
			
			
			 Evangelist 
			
			![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Posts: 487 
				Karma: 344188 
				Join Date: May 2010 
				Location: Oregon, USA 
				
				
				Device: Verizon Ellipsis Tablit w/Kindle and Nook apps. 
				
				
				 | 
	
	
	
		
		
			
			 
				
				Error communicating with Device
			 
			
			
			Using (recently updated) calibre 0.8.68 on WinXP-SP3. My device is a NookColor. 
		
	
		
		
		
		
		
		
		
		
		
		
	
	When trying to send a book (either ebup or PDF0 to the memory card, I get he message below: 'NOOK_COLOR' object has no attribute '_carda_prefix' Traceback (most recent call last): File "site-packages\calibre\gui2\device.py", line 83, in run File "site-packages\calibre\gui2\device.py", line 517, in _upload_books File "site-packages\calibre\devices\usbms\driver.py", line 256, in upload_books File "site-packages\calibre\devices\usbms\device.py", line 996, in _sanity_check AttributeError: 'NOOK_COLOR' object has no attribute '_carda_prefix' ![]() calibre seems to otherwise recognize the Memory card, as I can delete books from it, view the library on the card, and even read books from it. I was also able to copy a PDF (not in the calibre library) to the card via windows. I power-cycled the Nook, closed and reopened calibre, and still no joy. Any suggestions?  | 
| 
		 | 
	
	
	
		
		
		
		
			 
		
		
		
		
		
		
		
			
		
		
		
	 | 
| 
			
			 | 
		#2 | 
| 
			
			
			
			 creator of calibre 
			
			![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Posts: 45,609 
				Karma: 28549044 
				Join Date: Oct 2006 
				Location: Mumbai, India 
				
				
				Device: Various 
				
				
				 | 
	
	|
| 
		 | 
	
	
	
		
		
		
		
			 
		
		
		
		
		
		
		
			
		
		
		
	 | 
| 
			
			 | 
		#3 | 
| 
			
			
			
			 Guru 
			
			![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Posts: 820 
				Karma: 6528026 
				Join Date: Sep 2012 
				
				
				
				Device: Kobo Elipsa 
				
				
				 | 
	
	
	
		
		
		
		
		 
			
			Sony PRS-950 is showing the same error on Windows 7, 64-bit, HE, when trying to upload an epub to the SD card (card B). I tried repairing Calibre, which didn't work, and then uninstalled and reinstalled Calibre 0.8.68 from the website so I would get the newest version. No joy. Same error. Am now going to uninstall Calibre and reinstall 0.8.67 (previous version) to see if that works. 
		
	
		
		
		
		
		
		
		
		
		
		
		
			(10 minutes later): Just reinstalled Calibre version 0.8.67 and it works perfectly. I tried 0.8.68 on two computers (a desktop and a laptop, both HPs) and 0.8.68 gave me the error on both computers, while version 0.8.67 works perfectly on both computers. Last edited by icallaci; 09-08-2012 at 07:38 PM. Reason: Additional info  | 
| 
		 | 
	
	
	
		
		
		
		
			 
		
		
		
		
		
		
		
			
		
		
		
	 | 
| 
			
			 | 
		#4 | |
| 
			
			
			
			 Well trained by Cats 
			
			![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Posts: 31,267 
				Karma: 61916422 
				Join Date: Aug 2009 
				Location: The Central Coast of California 
				
				
				Device: Kobo Libra2,Kobo Aura2v1, K4NT(Fixed: New Bat.), Galaxy Tab A 
				
				
				 | 
	
	
	
		
		
		
		
		 Quote: 
	
  | 
|
| 
		 | 
	
	
	
		
		
		
		
			 
		
		
		
		
		
		
		
			
		
		
		
	 | 
| 
			
			 | 
		#5 | 
| 
			
			
			
			 Guru 
			
			![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Posts: 820 
				Karma: 6528026 
				Join Date: Sep 2012 
				
				
				
				Device: Kobo Elipsa 
				
				
				 | 
	
	
	
		
		
		
		
		 
			
			Yep, downloaded a fresh version, re-installed it (after uninstalling the old version and rebooting), and no luck. But 0.8.67 works for me, so I will stick with that for a while until this is resolved.
		 
		
	
		
		
		
		
		
		
		
		
		
		
	
	 | 
| 
		 | 
	
	
	
		
		
		
		
			 
		
		
		
		
		
		
		
			
		
		
		
	 | 
| 
			
			 | 
		#6 | |
| 
			
			
			
			 Evangelist 
			
			![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Posts: 487 
				Karma: 344188 
				Join Date: May 2010 
				Location: Oregon, USA 
				
				
				Device: Verizon Ellipsis Tablit w/Kindle and Nook apps. 
				
				
				 | 
	
	
	
		
		
			
			 
				
				Worked like a charm!
			 
			Quote: 
	 | 
|
| 
		 | 
	
	
	
		
		
		
		
			 
		
		
		
		
		
		
		
			
		
		
		
	 | 
![]()  | 
            
        
    
            
  | 
    
			 
			Similar Threads
		 | 
	||||
| Thread | Thread Starter | Forum | Replies | Last Post | 
| Troubleshooting Error communicating with device? | keeperofthebooks | Amazon Kindle | 1 | 06-02-2012 02:26 PM | 
| calibre, version 0.8.8 ERROR: Error: Error communicating with device no such column: | e-bookuser | Devices | 1 | 07-03-2011 05:09 PM | 
| Error Communicating with Device | Stephen Dedalus | Devices | 16 | 05-08-2011 01:13 PM | 
| Error communicating with device | judihutch | Apple Devices | 0 | 03-10-2011 05:07 PM | 
| ver 0.6.3 error: Error communicating with device PRS-505 | scripo | Calibre | 4 | 08-01-2009 11:38 PM |