Somebody can help me?
The error log show me that message :
TypeError: 'null' is not an object
You're going to have to way more specific to get assistance. What are you trying to do, where are you getting this error, etc.?
I'm trying to save the project. And Sencha Architect show this message.
Would you zip up a copy of the project and explain the steps that you took to get the the project in this state? and if its easily reproducible?
You can send the project to designer.feedback at sencha.com (with a url link to this thread) and it will be private or you can attach it here to the forums and it will be public.