[Qgis-user] An error has occured while executing Python code:

[Mariana Buzzi]

Hello everybody!!!


I'm trying to calculate the NDVI with Landsat 8 image, I downloaded from
the USGS site. The first thing to do is to rescale the values ​​of
reflectance and radiance at TOA. So I found a plugin (PGeosud: TOA
Reflectance). However, I used this plugin for bands 4 and 5. The study area
is composed of three units of landscapes. Plains, valleys and coastal
canyons where vegetation varies considerably. To avoid saturation of the
NDVI, I made a mask of each of them and I calculated the index. The problem
is that: when I apply the raster calculator I get the following error. What
can I do?

Thanks so much!!!!


An error has occured while executing Python code:

Traceback (most recent call last):
  File
"C:/Users/Mariana/.qgis2/python/plugins\raster_transparency\rastertransparency.py",
line 152, in layerChanged
    self.dockWidget.updateSliders(maxValue, minValue)
  File
"C:/Users/Mariana/.qgis2/python/plugins\raster_transparency\rastertransparencydockwidget.py",
line 142, in updateSliders
    self.spinStart.setMinimum(int(self.minVal))
TypeError: QSpinBox.setMinimum(int): argument 1 has unexpected type 'long'

Python version:
2.7.4 (default, Apr  6 2013, 19:54:46) [MSC v.1500 32 bit (Intel)]


QGIS version:
2.2.0-Valmiera Valmiera, c3a2817

Python path: ['C:/Users/Mariana/.qgis2/python/plugins\\processing',
'C:/PROGRA~1/QGISVA~1/apps/qgis/./python',
u'C:/Users/Mariana/.qgis2/python',
u'C:/Users/Mariana/.qgis2/python/plugins',
'C:/PROGRA~1/QGISVA~1/apps/qgis/./python/plugins',
'C:\\PROGRA~1\\QGISVA~1\\bin\\python27.zip',
'C:\\PROGRA~1\\QGISVA~1\\apps\\Python27\\DLLs',
'C:\\PROGRA~1\\QGISVA~1\\apps\\Python27\\lib',
'C:\\PROGRA~1\\QGISVA~1\\apps\\Python27\\lib\\plat-win',
'C:\\PROGRA~1\\QGISVA~1\\apps\\Python27\\lib\\lib-tk',
'C:\\PROGRA~1\\QGISVA~1\\bin', 'C:\\PROGRA~1\\QGISVA~1\\apps\\Python27',
'C:\\PROGRA~1\\QGISVA~1\\apps\\Python27\\lib\\site-packages',
'C:\\PROGRA~1\\QGISVA~1\\apps\\Python27\\lib\\site-packages\\PIL',
'C:\\PROGRA~1\\QGISVA~1\\apps\\Python27\\lib\\site-packages\\win32',
'C:\\PROGRA~1\\QGISVA~1\\apps\\Python27\\lib\\site-packages\\win32\\lib',
'C:\\PROGRA~1\\QGISVA~1\\apps\\Python27\\lib\\site-packages\\Pythonwin',
'C:\\PROGRA~1\\QGISVA~1\\apps\\Python27\\lib\\site-packages\\Shapely-1.2.18-py2.7-win32.egg',
'C:\\PROGRA~1\\QGISVA~1\\apps\\Python27\\lib\\site-packages\\wx-2.8-msw-unicode',
'C:\\PROGRA~1\\QGISVA~1\\apps\\qgis\\python\\plugins\\fTools\\tools']
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