The version on the server is 4.0.0.0. I performed an iis reset, deleted the webpart from the pag and added a new one, but I'm getting the same error.
RE: qSIListView Error when adding webpart to page in designer
The version on the server is 4.0.0.0. I performed an iis reset, deleted the webpart from the pag and added a new one, but I'm getting the same error.