I did an upgrade to DNN 5.1.2. Went from 4.9.5 to 5.0.0 to 5.1.2. Now I am getting errors when trying to edit roles. Here are some details.

ModuleControlSource: DesktopModules/Admin/Security/EditRoles.ascx
AssemblyVersion: 5.1.2
PortalID: 0
UserID: 1
ActiveTabID: 41
ActiveTabName: Security Roles
RawURL: /admin/securityroles/tabid/41/ctl/edit/mid/358/roleid/keyfield/default.aspx
AbsoluteURL: /Default.aspx
AbsoluteURLReferrer: http://www.iar.ubc.ca/admin/securityroles.aspx
UserAgent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0; GTB6; SLCC1; .NET CLR 2.0.50727; Media Center PC 5.0; InfoPath.2; .NET CLR 3.5.30729; .NET CLR 3.0.30618)
DefaultDataProvider: DotNetNuke.Data.SqlDataProvider, DotNetNuke.SqlDataProvider
InnerException: Input string was not in a correct format.
FileName:
FileLineNumber: 0
FileColumnNumber: 0
Method: System.Number.StringToNumber
StackTrace:
Message: DotNetNuke.Services.Exceptions.ModuleLoadException: Input string was not in a correct format. ---> System.formatException: Input string was not in a correct format. at System.Number.StringToNumber(String str, NumberStyles options, NumberBuffer& number, NumberformatInfo info, Boolean parseDecimal) at System.Number.ParseInt32(String s, NumberStyles style, NumberformatInfo info) at DotNetNuke.Modules.Admin.Security.EditRoles.Page_Load(Object sender, EventArgs e) --- End of inner exception stack trace ---