I'm trying to use the intersect tool, with one of my inputs being from a get parameter as text. As I don't have an advanced licence I have to iterate through the list to run the intersect on each item in the list.

However, there is something about the input into the intersect analysis it doesnt like. I get the error message:

Traceback (most recent call last): File "\DRBS-NAS01\ueec\GIS\100 MT testing\BufferTest\Scripts\Intersection batch.py", line 37, in arcpy.Intersect_analysis(Des4, DirectAndIndirect + "\test2", "ALL") File "c:\program files (x86)\arcgis\desktop10.7\arcpy\arcpy\analysis.py", line 334, in Intersect raise e ExecuteError: Failed to execute. Parameters are not valid. ERROR 000732: Input Features: Dataset SOBLayer #;'\DRBS-NAS01\ueec\GIS\100 MT testing\BufferTest\Data\Designations\Ancient_Woodland_England.shp' # does not exist or is not supported Failed to execute (Intersect).

    import arcpy
    import os
    
    ## Working folders
    WorkingDir = os.getcwd()    ## To go up more directories: os.getcwd() 
    os.path.dirname(os.getcwd());  os.chdir(os.path.dirname(os.getcwd()))
    DesDir = WorkingDir + "\\Data\\Designations"
    OutputDir = WorkingDir + "\\Data\\Outputs"
    Interim = OutputDir + "\\Interim"
    DirectAndIndirect = OutputDir + "\\DirectAndIndirect"
    
    if not os.path.exists(DirectAndIndirect):
        os.makedirs(DirectAndIndirect)
    
    SiteOptions = arcpy.GetParameterAsText(0)
    SiteOptionsBuffers = arcpy.GetParameterAsText(1)
    
    DesList1 = arcpy.GetParameterAsText(2)
    DesList2 = DesList1.split(';')
    
    DesBufferList = arcpy.GetParameterAsText(3)
    
    arcpy.MakeFeatureLayer_management(SiteOptionsBuffers, "SOBLayer")
    
    query = '"IndImpBuff" = {}'.format(DesBufferList)
    arcpy.SelectLayerByAttribute_management("SOBLayer","NEW_SELECTION", query)
    
    Des4 = ["SOBLayer"]
    for Des1 in DesList2:
        Des2 = os.path.basename(Des1)
        Des4.append(Des1)
        arcpy.Intersect_analysis(Des4, DirectAndIndirect + "\\test2", "ALL")

Could someone suggest what the problem with the Intersect input is please?