Hi I am very new to python coding and have been struggling with this for a while I cannot see the reason for this error! Any help will be greatly appreciated.

Here is the code that is causing this error:


    import arcpy
    import numpy as np
    import math
    from arcpy.sa import *

    # Input DEM
    input_raster = arcpy.GetParameterAsText(0)

    # Output 
    output_raster = arcpy.GetParameterAsText(1)

    # Input Discharge
    mean_discharge = float(arcpy.GetParameterAsText(2))

    # Input number of timesteps
    input_timestep = int(arcpy.GetParameterAsText(3))


    arcpy.overwriteOutput = True

    arcpy.env.workspace = r"C:\SedMod\SedMod\Workspace.gdb"
    arcpy.env.scratchWorkspace = r"C:\SedMod\SedMod\Workspace.gdb"

    actual_timestep = 0

    while actual_timestep < input_timestep:
        # Slope calculation

        # Set local variables
        out_measurement = "PERCENT_RISE"

        # Check out the ArcGIS Spatial Analyst extension license
        arcpy.CheckOutExtension("Spatial")

        #Execute Slope
        out_slope = Slope(input_raster, out_measurement)

        # Convert to gradient
        slope_raster = out_slope / 100

        input_raster = slope_raster
        actual_timestep = actual_timestep + 1

new_elevation.save(output_raster)   

There is a lot of code I have taken out that does some more geoprocessing which then alters the DEM to go back into the calculation.   

The error I am getting is:

Traceback (most recent call last):
  File "C:\SedMod\SedMod\Slope1.py", line 47, in <module>
    out_slope = Slope(input_raster, out_measurement, )
  File "c:\program files (x86)\arcgis\desktop10.1\arcpy\arcpy\sa\Functions.py", line 5523, in Slope
    z_factor)
  File "c:\program files (x86)\arcgis\desktop10.1\arcpy\arcpy\sa\Utils.py", line 47, in swapper
    result = wrapper(*args, **kwargs)
  File "c:\program files (x86)\arcgis\desktop10.1\arcpy\arcpy\sa\Functions.py", line 5518, in wrapper
    z_factor)
  File "c:\program files (x86)\arcgis\desktop10.1\arcpy\arcpy\geoprocessing\_base.py", line 498, in <lambda>
    return lambda *args: val(*gp_fixargs(args, True))
RuntimeError: ERROR 010240: Could not save raster dataset to C:\SedMod\SedMod\Workspace.gdb\numpy_ras6 with output format FGDBR.

Failed to execute (SedModv1).