I have created NEW SSRS report having code of 40000 lines. It is having 25 Line charts(and still needs to add 10+ charts).
When I try to Build or Run the report it fails.
"The report preview failed because the report could not be built. Read the errors, warnings and messages in the Error List window for specific build failures."
When I remove few charts and then both (Build or Run) work.
I'd suggest breaking up the charts into subreports, no more than 5 charts per, then create a master report that embeds those subreports. Apparently you're reaching some internal limit that SSRS cannot process or render as a single report.