Mcedit ошибка unhandled exception

I just downloaded MCEdit, yet whenever I tried to a world, It crashes. Does anyone knows how to fix it?

Here is the error details:

MCEdit version: 2.0.0-beta14
Python version: 2.7.15 (v2.7.15:ca079a3ea3, Apr 30 2018, 16:30:26) [MSC v.1500 64 bit (AMD64)]
Platform: win32
System version: Windows-10-10.0.18362
Processor: Intel64 Family 6 Model 158 Stepping 10, GenuineIntel

Obtained a GL context with this format:
Valid: True
Version: 4.6
Hardware Accelerated: True
Depth buffer: True, 24
Double buffer: True
Rendering profile: PySide.QtOpenGL.QGLFormat.OpenGLContextProfile.CompatibilityProfile

Driver info:
GL_VERSION: 4.6.0 NVIDIA 441.45 (4, 6)
GL_VENDOR: 'NVIDIA Corporation'
GL_RENDERER: 'GeForce GTX 1650/PCIe/SSE2'

------

Unhandled Exception

Traceback (most recent call last):
  File "mcedit2editorsession.py", line 1643, in viewOffsetChanged (self is a EditorTab)
  File "mcedit2worldviewminimap.py", line 187, in currentViewMatrixChanged (self is a MinimapWorldView)
  File "mcedit2utilraycast.py", line 30, in rayCastInBounds  
  File "mcedit2utilprofiler.py", line 73, in _wrapper (self is a Profiler)
  File "mcedit2utilraycast.py", line 77, in rayCast  
  File "mcedit2utilraycast.py", line 215, in advanceToChunk  
  File "mceditlibworldeditor.py", line 831, in getChunk (self is a WorldEditorDimension)
  File "mceditlibworldeditor.py", line 499, in getChunk (self is a WorldEditor)
  File "mceditlibcachefunc.py", line 77, in __call__  
  File "mceditlibworldeditor.py", line 477, in _getChunkDataRaw (self is a WorldEditor)
  File "mceditlibanviladapter.py", line 922, in readChunk (self is a AnvilWorldAdapter)
AnvilChunkFormatError: [Errno Error loading chunk: KeyError('Key Blocks not found.',)] None: <traceback object at 0x000002833D94BB48>

I just downloaded MCEdit, yet whenever I tried to a world, It crashes. Does anyone knows how to fix it?

Here is the error details:

MCEdit version: 2.0.0-beta14
Python version: 2.7.15 (v2.7.15:ca079a3ea3, Apr 30 2018, 16:30:26) [MSC v.1500 64 bit (AMD64)]
Platform: win32
System version: Windows-10-10.0.18362
Processor: Intel64 Family 6 Model 158 Stepping 10, GenuineIntel

Obtained a GL context with this format:
Valid: True
Version: 4.6
Hardware Accelerated: True
Depth buffer: True, 24
Double buffer: True
Rendering profile: PySide.QtOpenGL.QGLFormat.OpenGLContextProfile.CompatibilityProfile

Driver info:
GL_VERSION: 4.6.0 NVIDIA 441.45 (4, 6)
GL_VENDOR: 'NVIDIA Corporation'
GL_RENDERER: 'GeForce GTX 1650/PCIe/SSE2'

------

Unhandled Exception

Traceback (most recent call last):
  File "mcedit2editorsession.py", line 1643, in viewOffsetChanged (self is a EditorTab)
  File "mcedit2worldviewminimap.py", line 187, in currentViewMatrixChanged (self is a MinimapWorldView)
  File "mcedit2utilraycast.py", line 30, in rayCastInBounds  
  File "mcedit2utilprofiler.py", line 73, in _wrapper (self is a Profiler)
  File "mcedit2utilraycast.py", line 77, in rayCast  
  File "mcedit2utilraycast.py", line 215, in advanceToChunk  
  File "mceditlibworldeditor.py", line 831, in getChunk (self is a WorldEditorDimension)
  File "mceditlibworldeditor.py", line 499, in getChunk (self is a WorldEditor)
  File "mceditlibcachefunc.py", line 77, in __call__  
  File "mceditlibworldeditor.py", line 477, in _getChunkDataRaw (self is a WorldEditor)
  File "mceditlibanviladapter.py", line 922, in readChunk (self is a AnvilWorldAdapter)
AnvilChunkFormatError: [Errno Error loading chunk: KeyError('Key Blocks not found.',)] None: <traceback object at 0x000002833D94BB48>

Hi, I am 34486 not a buddy of mine 34486SCI heh.

I have noticed this with 2 worlds and get the exact same error EACH TIME! Its getting annoying.

An error occurred while opening D:/Servers/HHSDepleted/world/level.dat

‘utf8’ codec can’t decode byte 0xc0 in position 0: invalid start byte

Traceback (most recent call last):

File «mcedit2editorapp.py», line 781, in loadFile (self is a MCEditApp)

File «mcedit2editorsession.py», line 186, in __init__ (self is a EditorSession)

File «mceditlibworldeditor.py», line 233, in __init__ (self is a WorldEditor)

File «mceditlibfindadapter.py», line 62, in findAdapter

File «mceditlibanviladapter.py», line 463, in __init__ (self is a AnvilWorldAdapter)

File «mceditlibanviladapter.py», line 530, in loadMetadata (self is a AnvilWorldAdapter)

File «srcmceditlibnbt.pyx», line 590, in mceditlib.nbt.load

File «srcmceditlibnbt.pyx», line 683, in mceditlib.nbt.load_compound

File «srcmceditlibnbt.pyx», line 690, in mceditlib.nbt.load_named

File «srcmceditlibnbt.pyx», line 807, in mceditlib.nbt.load_tag

File «srcmceditlibnbt.pyx», line 683, in mceditlib.nbt.load_compound

File «srcmceditlibnbt.pyx», line 690, in mceditlib.nbt.load_named

File «srcmceditlibnbt.pyx», line 807, in mceditlib.nbt.load_tag

File «srcmceditlibnbt.pyx», line 683, in mceditlib.nbt.load_compound

File «srcmceditlibnbt.pyx», line 689, in mceditlib.nbt.load_named

File «srcmceditlibnbt.pyx», line 733, in mceditlib.nbt.load_name

UnicodeDecodeError: ‘utf8’ codec can’t decode byte 0xc0 in position 0: invalid start byte

64bit Mcedit2 2.0.0-beta7 I have tried another version, I forget which one and gave me the same error! What could this be from? I was able to load a factions world, but not my vanilla or depleted world? Whats the deal with this? I hope I get emails about this because I might forget of my issue…

Thanks!

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Instructions

Note:
This article was updated on 2023-01-24 and previously published under WIKI_Q210794

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Here you will find some information for troubleshooting information. These examples were mostly taken form the issue tracker.

There is not much here yet, but feel free to expand it!

Crashes

First, you should try development builds. Those are less stable, but they sometimes fix known crash errors. This was the case in Issue #193 and #198

Mac OSX

Missing X server

MCEdit is an X application. As such it needs an X server to function properly. Apple has its own version called XQuartz (AKA X11.app). This one is taken form Issue #192.

Other (running from source, typically Linux)

Missing pymclevel

When you run MCEdit from the source, you must get pymclevel too (in the git, it is a submodule). If you were following the instructions in README.md, you should not have this problem. However, if you have blindly cloned the repository, then you will have to run

git submodule init
git submodule update

This was the case in Issue 167

Wrong python version

MCEdit only works with Python 2.7. If you have any other version, it will fail. You should probably get Python 2.7 and run MCEdit as python2.7 mcedit.py
This was the case in Issue #168

Glitches

Windows, panels, interface items not showing up

This is a known issue. The interfaces are still usable, and this is a purely graphical glitch. Updating your graphics driver may (Issue #169), or may not (#191) solve your problem.

Common pitfalls

Clone, Fill & Replace and Filter buttons disabled

You have probably not selected an area, or maybe you have used the chunk tool instead of the select tool. If you want to operate on whole chunks, use the select chunks button in the panel of the select tool.
This was the case in Issue #196

Reporting an issue

If you haven’t found the solution for your problem here, you should report an issue. Before doing so, please read the related article (Reporting Issues) and search in the issue tracker to make sure not to make a duplicate. Thank you!