This is for a fresh install :

Steps:

 http://<site.com/install/installwizard.aspx

Setup wizard begins....

Select either

     () Custom or () Typical option,

Click next

Receive script error:

System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.ArgumentException: Invalid JSON primitive: . at

rializer.DeserializePrimitiveObject() at System.Web.Script.Serialization.JavaScriptObjectDeserializer.DeserializeInternal(Int32 depth) at System.Web.Script.Serialization.JavaScriptObjectDeserializer.BasicDeserialize(String input, Int32 depthLimit, JavaScriptSerializer serializer) at System.Web.Script.Serialization.JavaScriptSerializer.Deserialize(JavaScriptSerializer serializer, String input, Type type, Int32 depthLimit) at System.Web.Script.Serialization.JavaScriptSerializer.Deserialize[T](String input) --- End of inner exception stack trace --- at System.RuntimeMethodHandle._InvokeMethodFast(Object target, Object[] arguments, SignatureStruct& sig, MethodAttributes methodAttributes, RuntimeTypeHandle typeOwner) at System.RuntimeMethodHandle.InvokeMethodFast(Object target, Object[] arguments, Signature sig, MethodAttributes methodAttributes, RuntimeTypeHandle typeOwner) at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture, Boolean skipVisibilityChecks) at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture) at DotNetNuke.UI.Utilities.Reflection.InvokeGenericMethod[T](Type Type, String MethodName, Object Target, Object[] Args) at DotNetNuke.UI.Utilities.MSAJAX.Deserialize[T](String Data) at DotNetNuke.UI.Utilities.ClientAPI.GetClientVariableList(Page objPage) at DotNetNuke.UI.Utilities.ClientAPI.RegisterClientVariable(Page objPage, String strVar, String strValue, Boolean blnOverwrite) at DotNetNuke.UI.Utilities.ClientAPI.RegisterClientReference(Page objPage, ClientNamespaceReferences eRef) at DotNetNuke.UI.Utilities.ClientAPI.RegisterClientReference(Page objPage, ClientNamespaceReferences eRef) at DotNetNuke.UI.Utilities.ClientAPI.GetCallbackEventReference(Control objControl, String strArgument, String strClientCallBack, String strContext, String srtClientErrorCallBack, String strClientStatusCallBack, String strPostChildrenOfId, CallBackTypeCode eCallbackType) at DotNetNuke.UI.Utilities.ClientAPI.GetCallbackEventReference(Control objControl, String strArgument, String strClientCallBack, String strContext, String srtClientErrorCallBack, String strClientStatusCallBack, String strPostChildrenOfId) at DotNetNuke.UI.Utilities.ClientAPI.GetCallbackEventReference(Control objControl, String strArgument, String strClientCallBack, String strContext, String srtClientErrorCallBack) at DotNetNuke.Services.Install.InstallWizard.Page_Load(Object sender, EventArgs e) at System.Web.UI.Control.OnLoad(EventArgs e) at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

Any ideas?

Yes, I verified 3.5 is installed.

I have since resolved this - i believe the web.config created during the 5.2.2 install package was not correct.

To resolve this, I copied release.config over web.config.   Installation now works

I must be very lucky then - because DotNetNuke_Community_05.02.02_install.zip i just downloaded does contain a web.config file.  Its timestamp if 12/18/2009 12:21PM within the archived.

Is this not supposed to be in the install package?