ISSUE
When trying to create a responsive form, the designer does not work and gives following error:Modal Dialog: Sys.ParameterCountException: Parameter count mismatch.
ERROR CODE
Modal Dialog: Sys.ParameterCountException: Parameter count mismatch.RESOLUTION
In the web.config file find this line:<compilation batch="true" debug="true" optimizeCompilations="true">
Turn off debug, should look like this:
<compilation batch="true" debug="false" optimizeCompilations="true">