schCheck(cv) warnings and errors after updating CDF params

Hi all,

I am trying to port schematics from one technology to another, and I edit certain transistor parameters ( like channel length ) and re-instantiate it in my schematic, retaining the instance names, orientation, etc. Also in the opened schematic, I add power pins.

Now, all the parts of the code is working as intended, But I get the following message in CIW window :

INFO (SCH-1170): Extracting "MY_SCH_NAME schematic"

*WARNING* (DEBASE-102137): deGetViewType - Not a valid windowid.

*Error* rexMatchp: argument #2 should be either a string or a symbol (type template = "tS") - nil

t

I do not get this error when I have the schematic window open. I get this error only when I am operating on an entire library which has many cells.

Here's the piece of code that does it :

        cv = dbOpenCellViewByType(convertLib cell~>name "schematic" "" "a")
        ;----------------------------------------------------
        ; Re-Instantiate all the transistors and update CDF
        ;----------------------------------------------------

        reInstantiateTransistors( cv targLib targLibId targLibCells copyParams channelL )

        printf("Done Re instantiating transistors\n")

        setBulkNode(cv)

        updateCDF_params(cv)
        ;; In this procedure I iterate do the following
        ;; if my cellName matches with nch or pch
        ;; cdfgData=cdfGetInstCDF(inst)
        ;; Iterate through cdfgData~>parameters list and perform callbacks 

        printf("Done updating CDF\n")

        schCheck(cv)

        dbSave(cv)

I would appreciate any help to understand what I'm doing wrong, it works without any issues when i'm operating the same code with a schematic window open.

PS : I have only attached a part of code, but i'm happy to provide the full code, depending on what info might be needed. 

Thanks,

Abhi