Once you upgrade databse to NAV2015,we need to create a service for the databse otherwise some times we may get the below error
Microsoft Dyanamics NAV
----------------------------
Error while validating RDL content:
Value cannot be null.
Parameter name: path1
----------------------------
To resolve this issue,we need to create a service name and check the service name effected to our database through file --> database information-> service name
Microsoft Dyanamics NAV
----------------------------
Error while validating RDL content:
Value cannot be null.
Parameter name: path1
----------------------------
To resolve this issue,we need to create a service name and check the service name effected to our database through file --> database information-> service name