Hi Anthony

This is a long shot - but are the DB versions you're using on the server and locally the same or do they differ? For instance mssql 2008 / mssql 2008 r2.

/Jan

Hi Jan,

Good question. Didn't thinks of this, as I assumed the DB version where the same. I'll check it out first time in morning when I'm at my office :)

Thanks for your help,

Anthony

Hi Anthony

Well, it's worth checking but when I come to think about it I think you would already have had issues importing the database locally since mssql 2008 and mssql 2008 r2 are not compatible with each other...

But let's see what you find out in the morning :)

/Jan

Hi Jan,

I checked it, and to my surprise, the YSOD is gone when accessing the Umbraco Backoffice. Very odd indeed!

greetings,

Anthony

I get the same error message for an other website on my local machine. The website renders, but when I try to go the Umbraco Backoffice I get an YSOD with the message: 

Conversion failed when converting from a character string to uniqueidentifier

I'm upgrading my system, now, maybe I need to upgrade my sqlserver 2008 R2 database server.

greetings,
Anthony

it seems like really odd, and random behaviour. When I stop the website in IIS 7.5, start another website, and then restart the previous website, I'm able again to access the Umbraco Backoffice.

I really have no clue what's going on here. Is it my sqlserver database, is it the Umbraco website, or is the problem located at my webserver?

A though one indeed.

greetings,

Anthony

Hi Carsten,

I cannot reproduce the error anymore, but I also think it might be a cookie thing. The next I'll get the conversion error, I'll clear my browser cache to see if this works. I also only used Chrome, so the next time when the problem occurs, I'll test this with Firefox.

Thanks for letting me know,

Anthony

hi guys,

had the same problem twice in two days and had to clear my browser cookies on both ocassions, wonder if anyone has worked out what the problem is as this might get a bit annoying if it keeps happening regular.

Denford

hi Denford,

If it can be of any comfort, I never had the errormessage again afterwards (knock on wood)

greetings,

Anthony

yup, I can confirm it's a cookie-issue in Chrome. After getting the "Conversion"-error again, I checked it in Firefox. In Firefox I could go to the Umbraco Backoffice without a problem.

So I emptied my cache in the Chrome browser. This did not solve the problem.

Then I removed the installed cookies from my Chrome browser. After this I could go to the Umbraco Backoffice in Chrome whitout having the "Conversion"-error.

So Carsten got it right, it is a cookie issue in Chrome.

greetings,

Anthony

happened to me after upgrading from 4.8.1 to 4.9 in Firefox, too. After deleting the cookies it woked again.

Thanks Carsten,

Upgrading umbraco to 4.9 and that error came up, clearing the cookies worked for me.

Thanks,

Will

+1 for the solution on removing cookies, that fixed it for me, I doubt this is browser specific though as some seem to be indicating.

Thanks Anthony,

I used Chrome's Incognito mode, after reading your reply about cookies. Worked like a charm :)

Cheers

I had the same problem, with firefox. I loaded the /umbraco/umbraco.aspx from chrome and didn't get that YSOD.

In Firefox, with WebDeveloper Toolbar I deleted the domain cookies and that solved the problem.

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