Repetier-Host Mac 0.56 crashing when connecting to printer

I've been running my Marlin/Ramps 1.4 based delta printer with Repetier-Host 0.56 on Mac OS 10.10 and 10.9 with very few problems until last week, when it started crashing as soon as I click the 'Connect' button. Now when I try to connect, the log says "5 commands waiting" and hangs with the spinny wheel. I've force quit and removed all settings and preferences in ~/Library/Preferences and ~/Library/Repetier, but there must be some that I'm missing, because it still has my printer settings stored when I re-open Repetier and go to 'Printer Settings'. I'm guessing that something got corrupted since it was working, and suddenly isn't, but I must be missing some settings files somewhere. I'm pretty sure the problem isn't with my printer, because I can connect and print with Pronterface.

Does anyone know how to fix this?

Edited 1 time(s). Last edit at 12/09/2014 01:07AM by noexit.

Here's the error in the system log:
12/8/14 11:09:18.750 PM Repetier-Host Mac[50346]: *** -[__NSArrayM objectAtIndex:]: index 4294967295 beyond bounds [0 .. 1]


12/8/14 11:09:18.753 PM Repetier-Host Mac[50346]: (
0 CoreFoundation 0x95d20343 __raiseError + 195
1 libobjc.A.dylib 0x93cc7a2a objc_exception_throw + 276
2 CoreFoundation 0x95bd5714 -[__NSArrayM objectAtIndex:] + 244
3 Repetier-Host Mac 0x00022caa Repetier-Host Mac + 138410
4 Repetier-Host Mac 0x000231f6 Repetier-Host Mac + 139766
5 AppKit 0x9226cd57 -[NSView _drawRect:clip:] + 4221
6 AppKit 0x9226b582 -[NSView _recursiveDisplayAllDirtyWithLockFocus:visRect:] + 2071
7 AppKit 0x9226953a -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView:] + 876
8 AppKit 0x9226a7f4 -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView:] + 5670
9 AppKit 0x9226a7f4 -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView:] + 5670
10 AppKit 0x9226a7f4 -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView:] + 5670
11 AppKit 0x9226a7f4 -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView:] + 5670
12 AppKit 0x9226a7f4 -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView:] + 5670
13 AppKit 0x9226a7f4 -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView:] + 5670
14 AppKit 0x92268d14 -[NSThemeFrame _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:topView:] + 311
15 AppKit 0x92265a78 -[NSView _displayRectIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:] + 2942
16 AppKit 0x92242f51 -[NSView displayIfNeeded] + 1629
17 AppKit 0x9226175c -[NSWindow displayIfNeeded] + 324
18 AppKit 0x922a0570 _handleWindowNeedsDisplayOrLayoutOrUpdateConstraints + 1262
19 AppKit 0x9290b65b __83-[NSWindow _postWindowNeedsDisplayOrLayoutOrUpdateConstraintsUnlessPostingDisabled]_block_invoke1560 + 58
20 CoreFoundation 0x95c2ca2d _runLoopObserverWithBlockContext + 29
21 CoreFoundation 0x95c2c40e __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ + 30
22 CoreFoundation 0x95c2c350 __CFRunLoopDoObservers + 400
23 CoreFoundation 0x95c1dcb2 __CFRunLoopRun + 946
24 CoreFoundation 0x95c1d696 CFRunLoopRunSpecific + 390
25 CoreFoundation 0x95c1d4fb CFRunLoopRunInMode + 123
26 HIToolbox 0x9660e178 RunCurrentEventLoopInMode + 262
27 HIToolbox 0x9660deb1 ReceiveNextEventCommon + 494
28 HIToolbox 0x9660dcac _BlockUntilNextEventMatchingListInModeWithFilter + 99
29 AppKit 0x92130d99 _DPSNextEvent + 734
30 AppKit 0x921305e1 -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 186
31 AppKit 0x92122dac -[NSApplication run] + 907
32 AppKit 0x9210c310 NSApplicationMain + 2082
33 Repetier-Host Mac 0x000022a5 Repetier-Host Mac + 4773
)

12/8/14 11:09:27.524 PM Repetier-Host Mac[50346]: *** -[NSLock lock]: deadlock ( '(null)')

12/8/14 11:09:27.524 PM Repetier-Host Mac[50346]: *** Break on _NSLockError() to debug.

This is happening to me too. Any fix?

Deleting preferences in deed works. Problem is that newer Mac OS X versions cache data, so deleting a file does only work after a reboot. A simpler solution that seems to work is using macs command for this:

defaults delete repetier.Repetier-Host-Mac

The after restart is is like a new installed host.

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This worked. I did a search for Repetier after I'd thrown out everything that I could find and found cached files. After I threw them away it worked.

Thanks.