How to resolve the issue?

[techenthusiast]

Dear all,
Good morning,


Traceback (most recent call last):
  File "C:\Program Files\QuantumATK\QuantumATK-V-2023.12\atkpython\Lib\site-packages\AddOns\DevicePackage\CreateDeviceFromBulkWidget.py", line 105, in accept
    self._stash.addItem(item, set_active=True)
  File "zipdir\NL\GUI\Tools\Builder\Stash\Stash.py", line 430, in addItem
  File "zipdir\NL\GUI\Tools\Builder\Stash\Stash.py", line 238, in setActive
  File "zipdir\NL\GUI\Tools\Builder\Stash\Stash.py", line 710, in saveItem
  File "zipdir\NL\GUI\Tools\Builder\Stash\Stash.py", line 796, in deleteObject
  File "zipdir\NL\IO\NLSaveUtilities.py", line 541, in nldelete
  File "zipdir\NL\IO\HDF5.py", line 299, in _delitem_
  File "h5py\_objects.pyx", line 54, in h5py._objects.with_phil.wrapper
  File "h5py\_objects.pyx", line 55, in h5py._objects.with_phil.wrapper
  File "build\atkpython\Lib\site-packages\h5py\hl\group.py", line 357, in __getitem_
  File "h5py\_objects.pyx", line 54, in h5py._objects.with_phil.wrapper
  File "h5py\_objects.pyx", line 55, in h5py._objects.with_phil.wrapper
  File "h5py\h5o.pyx", line 190, in h5py.h5o.open
KeyError: "Unable to open object (object '(8R,9' doesn't exist)"

Kindly advise. Thank You.

[Anders Blom]

You'll need to provide more details on when this happens, what you are trying to do. One can guess, maybe, from the errors, but not really pinpoint anything. Does the string "(8R,9" have some relation to the name of a stash item (configuration) in the Builder? If so, maybe try to rename it.

[techenthusiast]

This is coming when - 1. I want to make a normal CNT Device from bulk (Especially for electrode expansion for example 4.56 Angstrom to 25 Angstrom)
)
2. I want to download the target molecule from Pubmed CID for the sensing application
3. I Want to delete something from the stash.

Thank You.

[Anders Blom]

Maybe your stash has become corrupt. You can start fresh by deleting the file Builder_Stash.hdf5 in the project (or just rename it, maybe some data is needed and can be saved later).

[techenthusiast]

It's working. Thank you for your kind advice. 

To ask :
Good morning. I just wanted to ask how to Make Multiple Channels (at least 2) for a GAA CNT FET using quantum atk in NEGF formation. With the same chirality, say (10,0). Thank You.
How to increase Source & drain Height with the same chirality of CNT?
Also, Is there any technical scientific provision for molecular adsorption effect mechanism(Maybe Vander Wal force between target molecules & the CNT-based scattering region/Channel) ? for those channels(each)?   Kindly Let me know,

Thank you.