topic Re: "Object reference not set to an instance of an object" Ideas? Hints? in SAS Enterprise Guide

Error when deleting from Enterprise Guide project -- Ideas? Hints?

jimbarbour — Thu, 23 May 2019 20:08:25 GMT

I've just installed SEG 7.12 (7.100.2.3350) (64 bit) on my laptop which is running Windows 7 Enterprise verson 6.1 (Build 7601, Svc Pack 1). I'm frequently getting an error "Object reference not set to an instance of an object". See also below. This mainly happens when I delete something from my project. For example, say I open a SAS dataset. I just want to look something up and don't want it to be a part of my project. When I delete it from my project, I get "Object reference not set to an instance of an object".

I've also noticed problems with things, apparently, not saving properly. Unless I do a "Save As" and replace, some SAS program changes are gone when I close and then go back into a project. Presumably, I unknowingly did something during set up. I suppose I could de-install and re-install, but has anyone encountered anything like this? And what did you do to resolve it? Did you find any particular SAS documentation helpful?

Thanks,

Jim

Re: "Object reference not set to an instance of an object" Ideas? Hints?

jimbarbour — Fri, 25 Mar 2016 11:16:32 GMT

Well, I haven't completely tested this yet, but I applied the hot fixes and upgrades for SEG 7.12, and... I've stopped getting the "Object reference not set to an instance of an object" errors that I was getting. If so, best and most timely upgrade ever. I should be able to confirm tomorrow.

Jim

Re: "Object reference not set to an instance of an object" Ideas? Hints?

jimbarbour — Sat, 26 Mar 2016 00:15:53 GMT

Unfortunately, the problem hasn't gone away, at least not entirely. I'm still getting "Object reference not set to an instance of an object" when I close SEG 7.1 after having worked on a project. Everything else appears to be functional. A minor nuisance at this point (unless I lose more work), but if anyone had a suggestion as to how to debug the problem, I would be most obliged.

Jim

Re: "Object reference not set to an instance of an object" Ideas? Hints?

ChrisHemedinger — Sat, 26 Mar 2016 18:18:59 GMT

@jimbarbour I recommend working with tech support. You'll want to turn on the Application Logging (in Tools->Options) and send the resulting log file -- be sure it represents an entire EG session (after you close the app and see the exception.) I suspect EG is having trouble writing out your preferences that might have changed during the session, but only the app log can help diagnose.

Re: "Object reference not set to an instance of an object" Ideas? Hints?

jimbarbour — Tue, 29 Mar 2016 02:47:23 GMT

@ChrisHemedinger, ah, of course, the log files.

I suspect the problem arises from the fact that I had a prior version of SEG (4.3) on my machine in SASHome. When I installed SEG 7.1, I noticed that the installation went into SASHome2. I'm imagining that there is some dll that is not being accessed because it's in a different SAShome, although that's just a guess. Your suspicion that EG is having trouble writing out preferences of some type may be well founded.

Thanks, and I'll post an update here when I have further information (and hopfully report that I have a solution).

Jim

Re: "Object reference not set to an instance of an object" Ideas? Hints?

greenwood1fl — Fri, 20 May 2016 01:35:10 GMT

@jimbarbour Have you resolved this yet? I have a user with the same issue when closing EG 7.11. Her error text is the same as yours. I suspected her issue was caused by using two different servers (Local and SASApp) in the same session, and bouncing back and forth between them repeatedly. If Tech Support has been able to resolve it, I'd love to know. Otherwise I'll have her generate some logs of her own to send in. Thanks.

Re: "Object reference not set to an instance of an object" Ideas? Hints?

CaseySmith — Fri, 20 May 2016 15:09:25 GMT

I'm fairly certain you are encountering this:

http://tsdsrv05.unx.sas.com:7777/iw/docs/sasnotes/fusion/57/979.html

It was fixed in 7.12 HF2, released today. You should get notification in EG 7.12 the next time you start EG or if you click Help->Check for updates. Or you can download and apply the traditional way from here:

http://ftp.sas.com/techsup/download/hotfix/HF2/Y39.html

Re: "Object reference not set to an instance of an object" Ideas? Hints?

antoniosarco — Mon, 17 Oct 2016 06:14:10 GMT

The message "Object not set to instance of Object" means that you are trying to use an object which has not been initialized. That is, you either set it to null, or you never set it to anything at all. The runtime throwing a NullReferenceException always means the same thing: you are trying to use a reference. The reference is not initialized (or it was initialized, but is no longer initialized).

Antonio

Re: "Object reference not set to an instance of an object" Ideas? Hints?

jimbarbour — Mon, 17 Oct 2016 18:00:55 GMT

Sorry to take so long to reply. I didn't see this when you posted it. Just saw it now.

Yes, the issue was resolved, presumably by the latest fix released by SAS.

Jim