Report viewer does not load, showing blank space - running local RDLC files

Question

I got a problem with reporting services, running local rdlc files on the 2005 version.

I have in the HTML a report viewer set to run locally as follows :

Answer 1

This one took some time to figure out, so hopefully these checks will save you some time:

1) Verify the web.config

2) try the report viewer control directly in design view before moving any configuration into code

Hard-Coded Report Viewer Control

3) Verify that the script manager is on the page before the report viewer

4) Ensure that the report runs outside of design viewer, either locally or on the SSRS server

5) BE SURE THAT REPORT HAS DEFAULT VALUES FOR ALL PARAMETERS! Reports that require parameters and don't have default values show up blank.