# Error loading CT images
**URL:** https://discourse.slicer.org/t/error-loading-ct-images/9047
**Category:** Support
**Tags:** dicom
**Created:** [November 6, 2019, 7:27pm UTC](https://discourse.slicer.org/t/error-loading-ct-images/9047 "2019-11-06T19:27:35Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@INVESTIGACION\_Y\_DESA](https://discourse.slicer.org/u/INVESTIGACION_Y_DESA)
#### Post date: [November 6, 2019, 7:27pm UTC](https://discourse.slicer.org/t/error-loading-ct-images/9047/1 "2019-11-06T19:27:35Z")
DICOM plugin failed to load ‘3: Óseo 0.63 H70s’ as a ‘Scalar Volume’.
Traceback (most recent call last):
File “C:\Program Files\Slicer 4.10.2\lib\Slicer-4.10\qt-scripted-modules\DICOMLib\DICOMWidgets.py”, line 867, in proceedWithReferencedLoadablesSelection
loadSuccess = plugin.load(loadable)
File “C:/Program Files/Slicer 4.10.2/bin/…/lib/Slicer-4.10/qt-scripted-modules/DICOMScalarVolumePlugin.py”, line 417, in load
volumeNode = self.loadFilesWithSeriesReader(readerApproach, loadable.files, loadable.name)
File “C:/Program Files/Slicer 4.10.2/bin/…/lib/Slicer-4.10/qt-scripted-modules/DICOMScalarVolumePlugin.py”, line 290, in loadFilesWithSeriesReader
reader.SetArchetype(files[0]);
TypeError: SetArchetype argument 1: (unicode conversion error)
Could not load: 3: Óseo 0.63 H70s as a Scalar Volume
Traceback (most recent call last):
File “C:\Program Files\Slicer 4.10.2\lib\Slicer-4.10\qt-scripted-modules\DICOMLib\DICOMWidgets.py”, line 737, in getLoadablesFromFileLists
loadablesByPlugin[plugin] = plugin.examine(fileLists)
File “C:/Program Files/Slicer 4.10.2/bin/…/lib/Slicer-4.10/qt-scripted-modules/MultiVolumeImporterPlugin.py”, line 106, in examine
loadables += self.examineFiles(files)
File “C:/Program Files/Slicer 4.10.2/bin/…/lib/Slicer-4.10/qt-scripted-modules/MultiVolumeImporterPlugin.py”, line 493, in examineFiles
mvNodes = self.initMultiVolumes(subseriesLists[key])
File “C:/Program Files/Slicer 4.10.2/bin/…/lib/Slicer-4.10/qt-scripted-modules/MultiVolumeImporterPlugin.py”, line 885, in initMultiVolumes
mvNode.SetAttribute(‘MultiVolume.FrameFileList’, frameFileListStr)
TypeError: SetAttribute argument 2: (unicode conversion error)
Warning: Plugin failed: MultiVolumeImporterPlugin
See python console for error message.
DICOM Plugin failed: SetAttribute argument 2: (unicode conversion error)
Traceback (most recent call last):
File “C:\Program Files\Slicer 4.10.2\lib\Slicer-4.10\qt-scripted-modules\DICOMLib\DICOMWidgets.py”, line 737, in getLoadablesFromFileLists
loadablesByPlugin[plugin] = plugin.examine(fileLists)
File “C:/Users/Investigacion/AppData/Roaming/NA-MIC/Extensions-28257/SlicerRT/lib/Slicer-4.10/qt-scripted-modules/DicomSroImportPlugin.py”, line 35, in examine
fileList.InsertNextValue(f)
TypeError: InsertNextValue argument 1: (unicode conversion error)
Warning: Plugin failed: DicomSroImportPlugin
See python console for error message.
DICOM Plugin failed: InsertNextValue argument 1: (unicode conversion error)
DICOM plugin failed to load ‘3: Óseo 0.63 H70s’ as a ‘Scalar Volume’.
Traceback (most recent call last):
File “C:\Program Files\Slicer 4.10.2\lib\Slicer-4.10\qt-scripted-modules\DICOMLib\DICOMWidgets.py”, line 867, in proceedWithReferencedLoadablesSelection
loadSuccess = plugin.load(loadable)
File “C:/Program Files/Slicer 4.10.2/bin/…/lib/Slicer-4.10/qt-scripted-modules/DICOMScalarVolumePlugin.py”, line 417, in load
volumeNode = self.loadFilesWithSeriesReader(readerApproach, loadable.files, loadable.name)
File “C:/Program Files/Slicer 4.10.2/bin/…/lib/Slicer-4.10/qt-scripted-modules/DICOMScalarVolumePlugin.py”, line 290, in loadFilesWithSeriesReader
reader.SetArchetype(files[0]);
TypeError: SetArchetype argument 1: (unicode conversion error)
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### Author:  [@lassoan](https://discourse.slicer.org/u/lassoan)
#### Post date: [November 6, 2019, 7:33pm UTC](https://discourse.slicer.org/t/error-loading-ct-images/9047/2 "2019-11-06T19:33:19Z")
Currently, Slicer only supports DICOM import from files and folders that do not contain any special (non-ASCII) characters. See [DICOM FAQ](https://www.slicer.org/wiki/Documentation/Nightly/FAQ/DICOM) for solution: “Try moving the data and the database directory to a path that includes only US English characters (ASCII) to avoid possible parsing errors. No special, international characters are allowed.”