SSRS #33 – Object name in SSRS is case-sensitive
You probably will not notice that the object name in SSRS is case-sensitive until you copy somebody’s RDL report file and modify on top of it.
I recently did just that. Some of the column names are the same, so I didn’t bother to change it.
This caused the case mismatch between the column names in my data set and the field names in the textbox in the table.
Here will be the error you will see when you try to preview your report. The message, just like many other error messages, is not very revealing.