Thanks Chris Hammond for you information!
I did three kind of installation
1. From IIS, Install Application From Gallery
2. From DNN_Platform_07.04.02_Install
3. From DNN_Platform_07.04.02_Source
But I still have the same issue, After installation I cannot start my DNN.
Please help me and guide me more if i got something wrong
I download source code and try to debug and figured out the issue in "GetSkin(PageBase page)" method of DotNetNuke.UI.Skins.Skin (from line 1004 to 1058). It cannot load default page ".\Portals\_default\Skins\Gravity\2-Col.ascx"
//load assigned skin
if (skin == null)
{
//DNN-6170 ensure skin value is culture specific
//skinSource = Globals.IsAdminSkin() ? SkinController.FormatSkinSrc(page.PortalSettings.DefaultAdminSkin, page.PortalSettings) : page.PortalSettings.ActiveTab.SkinSrc;
skinSource = Globals.IsAdminSkin() ? PortalController.GetPortalSetting("DefaultAdminSkin", page.PortalSettings.PortalId,
Host.DefaultPortalSkin, page.PortalSettings.CultureCode) : page.PortalSettings.ActiveTab.SkinSrc;
if (!String.IsNullOrEmpty(skinSource))
{
skinSource = SkinController.FormatSkinSrc(skinSource, page.PortalSettings);
skin = LoadSkin(page, skinSource);
}
}
//error loading skin - load default
if (skin == null)
{
skinSource = SkinController.FormatSkinSrc(SkinController.GetDefaultPortalSkin(), page.PortalSettings);
skin = LoadSkin(page, skinSource);
}