# ERROR : Traceback (most recent call last): # File "<Script Block >", line 12, in ? # blinn, prevsrc = surface.ConnectFromFile( "$SI_HOME\Data\DSPresets\Shaders\Material\Blinn.Preset", prevsrc ) # NameError: name 'prevsrc' is not defined # - [line 12]
This is a message that can appear when you are trying to access a method's output arguments with tuple syntax but you have forgotten to initialize at least one of the variables you are using.
You can just assign 0 or "" to each variable just to initialize it before using, regardless of what type it will eventually be (see Getting Output Arguments from Methods for more information).
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