I want to calculate some vegetation index in QGIS. I use the raster calculator, but when I run the process it give me this error:
Traceback (most recent call last):
File "C:/OSGEO4~1/apps/qgis/./python/plugins\processing\algs\qgis\RasterCalculator.py", line 129, in processAlgorithm
raise QgsProcessingException(self.tr("No reference layer selected nor CRS provided"))_core.QgsProcessingException: No reference layer selected nor CRS provided
even if the layers have their own Reference system. How can I solve this problem?