I have crystal report 2010 installed with VS 2010.i have created a crystal report which is works fine in the localhost but the issue is once i publish my website to IIS the
I know it was asked some years ago. But this method worked for me. This is for people that someday will encounter this kind of problem.
I created my application in a 32 bit environment and changed to 64 bit. I deployed my web application in IIS web server (current 64 bit) and created my own application pool (having the "manage pipeline mode" into integrated).
Then when this report issue happened, i followed those instructions from the link. I changed the "manage pipeline mode" into classic and my application worked.