LyX ⇒ AMS Article in LyX 2

[daavidb]

After having LyX 2 installed on my machine I can no longer use the AMS article document class. Instead I have a bunch of incompatible looking and unusable document classes and modules showing up, probably those from the earlier version of LyX. Where can I get a layout file for AMS article, and the AMS theorems modules, for LyX 2?

[PhilipPirrip]

Please provide more information. What's your operating system, what was the previous version, how did you install v2.0.0, are there any remains of the previous version in your install directory, have you tried uninstalling then installing again, what error messages do you get and at what stage (changing document class?, compiling?).
On my system everything works fine.