I begin to create a form, once I click preview I get this error message.
Can anyone direct me on to fix this?

'' is not a valid identifier.
at System.Web.UI.TemplateParser.ParseString(String text, VirtualPath virtualPath, Encoding fileEncoding) at System.Web.UI.TemplateParser.ParseInternal() at System.Web.UI.TemplateParser.Parse() at System.Web.UI.TemplateParser.ParseTemplateInternal(String content, VirtualPath virtualPath, Boolean ignoreFilter) at System.Web.UI.TemplateParser.ParseControl(String content, VirtualPath virtualPath, Boolean ignoreFilter) at System.Web.UI.TemplateControl.ParseControl(String content) at KnowBetter.XMod.XModFormGenerator.GenerateForm(String strFormContent, EditModeEnum EditMode, Int32 FormId) at KnowBetter.XMod.ManageFormsPreview.GenerateFormPreview()

ibaptek

It would be helpful to know the version of DNN you are using so we could possible recreate the error; also whether or not you did activate the license. The details are no fun I know but we have a better chance of resolving this issue.
I can say though that it may have been your install and the permissions you have with the account you installed. I did an install in DNN 4.9 and 5.0, 5.1 and have had no issues.

Colin

ibaptek,

The most likely cause of an error like this is that there is a typo in your form somewhere. When you get 'not a valid identifier' it usually means there is an invalidly formed tag in your form.

Best,
Kelly