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[SOLVED] A number of "permission denied", "failed to open file", "cannot save parameters in that file name" errors due to Avast

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Folks, I am seeing a boatload of "file access" issues with a PCB design that I took all the way to artwork generation, and I have done VERY MINOR edits in the schematic, updated the netlist, went back into PCB editor, did minor changes to reflect schematic changes, and then I am trying to re-create manufacturing files, this is where I am seeing multiple issues all seemingly claiming that previously-generated files can no longer be overwritten!!!:

1. I have taken multiple designs before to completion of artwork and manufacturing files generation. Never before I had issues with unrouted connections. Now that I have replaced a few symbols by the ECO operation from schematic entry, and re-positioned them, I see "unrouted" connections show up around these newly placed parts. The "unrouted" connections are super short, I have no idea what Allegro PCB Designer wants, I clearly see copper on top of pin, and I have even "reran" some more copper traces on top of old traces. Allegro PCB Designer stupidly claims that I have missing connection here.

2. If Allegro PCB Designer claims that I have 1% of "unrouted" connections, then how possibly can DRC status be GREEN???

But the absolute show-stopper for me is NC drill files regeneration. I HAVE ALREADY generated these files for previous revision of the design, now re-creating then is impossible!

3. Trying to re-create Artwork apertures I get "Failed to open file". Well, the file IS MOST DEFINITELY THERE, AT THE SPECIFIED LOCATION, AND IT CONTAINS DATA PREVIOUSLY GENERATED IN PREVIOUS REVISION OF THIS DESIGN.

4. TRYING TO RE-CREATE DRILL LEGEND, I GET ERROR "*Error* deleteFile: permission denied - "./nc_param.txt"". Again, this file was already generated during previous manufacturing files generation, it DOES exist, it is in a normal location (my project file, in folder called allegro). OrCAD tries to create a file called nc_param.txt.new.

5. Trying to use NC Parameters window, I get error "Cannot save parameters in that file name".

6. Trying to generate NC Drill files, pressing on Drill button I get NOTHING. Why wouldn't at least a meaningful log be generated? The log that is available is for the previous design iteration, when I was able to generate all manufacturing files successfully.

Also I have a bizarre error in nclegend.log. Claims that a colum does not exist but then again I CAN DIRECTLY OPEN THAT FILE AND THE COLUM DOES INDEED EXIST!!!

Did a single setting get garbled up? Paths setting of some sort? Why can it no longer understand files both within my project, and default templates in its own installation folder??? I am DIRECTLY pointing Allegro PCB Designer to configuration files, and yet it still claims that it cannot write to those files!

Allegro PCB Designer 17.2-2016 S051 [1/28/2019] Windows SPB 64-bit Edition

Fullscreen 1856.art_aper.txt Download 
INPUT-UNITS     INCHES

WHEEL     1

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Fullscreen 8308.nclegend.log Download 
(---------------------------------------------------------------------)
(                                                                     )
(    DRILL LEGEND                                                     )
(                                                                     )
(    Drawing          : RELSSW.brd                                    )
(    Software Version : 17.2S051                                      )
(    Date/Time        : Sun Jul 12 23:10:45 2020                      )
(                                                                     )
(---------------------------------------------------------------------)


Begin processing of drill legend template file 'c:/cadence/spb_17.2/share/pcb/text/nclegend/default-mil.dlt' ...
WARNING(SPMHSK-47): Column type 'HoleSize' does not exist.
WARNING(SPMHSK-47): Column type 'PlateStatus' does not exist.
End of drill legend template file processing.
Begin processing of drill legend template file 'c:/cadence/spb_17.2/share/pcb/text/nclegend/default-mil.dlt' ...
WARNING(SPMHSK-47): Column type 'HoleSize' does not exist.
WARNING(SPMHSK-47): Column type 'PlateStatus' does not exist.
End of drill legend template file processing.
Drill Legend command cancelled.

3.

  • Anyone familiar with what is going on here regarding file access/write issues??? I don't care so much anymore regarding no-connect (some of which I have resolved by re-doing ALL sections of the trace, I guess it did not really snap in place as promised / visually expected, and the DRC nonsense).

    I just tried to create a brand-new, super-simple project, and it is having the same issue. So my issue with NOT project-related. It is either OrCAD or OS or third-party software. I looked into my AV virus chest, nothing got trapped there. I can access the file with a text editor. It is not made read-only in the OS. I checked several things already, and no major events transpired in two weeks between when I did the exact same operation, and a few days ago when NC drill files, configuration, and artwork configuration are all broken and non-functional.

  • Son of a! Something possessed (literally) Avast to start blocking Allegro PCB Designer from being able to access SOME files but not ALL files!!! (As I can still save designs, etc, etc). It is only blocking configuration files!!! It still allows OrCAD to save designs and make log files. WTH?!?

    As soon as I disabled Avast shields, the problem evaporated!!!

    The reason I thought about Avast was that about four years ago, when I just installed OrCAD on my laptop, it was taking OrCAD half an hour to start. I thought that OrCAD was extraordinarily taxing on my old and beat-up laptop, until my co-worker said "non-sense!". Upon further investigation, somehow after a week of troubleshooting, I happened to peek inside Avast's Virus Quarantine sandbox. Sure as heck, as soon as OrCAD on launch was trying to access a file, Avast would steal and hide that file right under from OrCAD's nose! The bizarre part was that OrCAD would still start, even with now half-dozen files being stolen from it. I told Avast to knock it off, and for years I did not see any further issues, until now... Developers should look into this. See for yourself, it still is in Avast's history:

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