We got the problem. It seems to be a bug with licensing!
Syncfusion.Shared and Syncfusion.Tools are in the gac. So if we set a reference it is set to (project properties) "copy local = false".
If we set this two references to "copy local = true" (cause in a no touch deployment we dont want a gac installation) then the lic file is changed and from this time on the errors occur!
If we change it back then the license file will be change again and then the errors are gone.
By the way if you look at the lic there are several entries twice ???
lic:
Syncfusion.Windows.Forms.Tools.TreeViewAdv, Syncfusion.Tools, Version=1.6.1.0, Culture=neutral, PublicKeyToken=3d67ed1f87d44c89
Syncfusion.Windows.Forms.Tools.SplashControl, Syncfusion.Tools, Version=1.6.1.0, Culture=neutral, PublicKeyToken=3d67ed1f87d44c89
BTIS.MetaDraw.MetaDraw, BTIS.MetaDraw, Version=1.0.0.2, Culture=neutral, PublicKeyToken=2211cb25f760e370
Syncfusion.Windows.Forms.Tools.DockingManager, Syncfusion.Tools, Version=1.6.1.0, Culture=neutral, PublicKeyToken=3d67ed1f87d44c89
Syncfusion.Windows.Forms.Tools.DockingManager, Syncfusion.Tools, Version=1.6.1.0, Culture=neutral, PublicKeyToken=3d67ed1f87d44c89
Syncfusion.Windows.Forms.Tools.CommandBarController, Syncfusion.Tools, Version=1.6.1.0, Culture=neutral, PublicKeyToken=3d67ed1f87d44c89
Syncfusion.Windows.Forms.Tools.DockingManager, Syncfusion.Tools, Version=1.6.1.0, Culture=neutral, PublicKeyToken=3d67ed1f87d44c89
Syncfusion.Windows.Forms.Tools.DockingManager, Syncfusion.Tools, Version=1.6.1.0, Culture=neutral, PublicKeyToken=3d67ed1f87d44c89
Syncfusion.Windows.Forms.Tools.WizardControl, Syncfusion.Tools, Version=1.6.1.0, Culture=neutral, PublicKeyToken=3d67ed1f87d44c89
Syncfusion.Windows.Forms.Tools.DockingManager, Syncfusion.Tools, Version=1.6.1.0, Culture=neutral, PublicKeyToken=3d67ed1f87d44c89
Syncfusion.Windows.Forms.Tools.DockingManager, Syncfusion.Tools, Version=1.6.1.0, Culture=neutral, PublicKeyToken=3d67ed1f87d44c89
Syncfusion.Windows.Forms.Tools.DockingManager, Syncfusion.Tools, Version=1.6.1.0, Culture=neutral, PublicKeyToken=3d67ed1f87d44c89
So it seems for me a bug in the licensing process....
Please let me know what the dev team is saying.
Greetings :-)
Ralf