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I just installed SelfRegistration 1.9.4 and received the following error message:

Fatal error: Call to a member function AddPropertyDefn() on null in /home/xxx/public_html/modules/SelfRegistration/method.install.php on line 123

This took CMSMS down. I had to remove the SelfRegistration folder from the modules folder for everything to work again.

Here's my system info:

Cms Version: 2.1.1
Installed Modules:
▪ AdminSearch: 1.0
▪ CMSContentManager: 1.1
▪ DesignManager: 1.1.1
▪ FileManager: 1.5.2
▪ MicroTiny: 2.0.2
▪ ModuleManager: 2.0.1
▪ Navigator: 1.0.2
▪ News: 2.50.3
▪ Search: 1.50.2
▪ CGExtensions: 1.51
▪ CGSimpleSmarty: 2.0.2
▪ FormBuilder: 0.8.1.2
▪ LISE: 1.1
▪ CMSMailer: 5.2.4
▪ FrontEndUsers: 1.31

I was able to import the .xml file and it installed without a problem.