Report Server has RDLSandboxing enabled

Today, while uploading a report in the Dynamics 365 Online, I faced the following exception:

After clicking on the \’Download Log File\’ button, I got a more detailed exception and it informed me that \’Microsoft.VisualBasic.Interaction\’ has been referred which is not allowed in the Dynamics 365 Online (seems reasonable).

Since I was not exactly sure at what places I used it nor how many times were it used, so I opened the *.rdl file into Notepad++ and do the Find and replace. In this way, I removed all the instances of Microsoft.VisualBasic.

After removing the references to Microsoft.VisualBasic, I upload the report and it works properly. Bingo!!