Issue
An existing list is not found when using a lookup on from another Site Collection.
Resolution
Ensure that the root site exists in the Web Application.
Navigate to Central Administration > Application Management > View All Site Collections > Your Web App
Note:
The root site will look similar to:
http://my-server.domain.com/
Notice that on the root site, nothing follows /.
Navigate to Central Administration > Application Management > View All Site Collections > Your Web App
Note:
The root site will look similar to:
http://my-server.domain.com/
Notice that on the root site, nothing follows /.
Error Code
w3wp.exe (0x1980) 0x0D04 Nintex Forms Front End 00000 Unexpected The lookup list 'xxxx' could not be found in web '/sites/xxxx' with error: System.NullReferenceException: Object reference not set to an instance of an object. at Nintex.Forms.SharePoint.WebControls.BaseLookupControlV1.get_Web() at Nintex.Forms.SharePoint.WebControls.BaseLookupControlV1.get_List() xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxxx w3wp.exe (0x1980) 0x2274 SharePoint Foundation Runtime aep93 High Exception trying get context compatibility level: System.IO.FileNotFoundException: The site https://my-server.domain.com:443/_vti_bin/NintexFormsServices/NfRestService.svc/GetDataForControlAsync<> could not be found in the Web application SPWebApplication Name=SharePoint - 443. at Microsoft.SharePoint.SPSite.LookupSiteInfo(SPFarm farm, Boolean contextSite, Boolean swapSchemeForPathBasedSites, Uri& requestUri,
