I am an absolutly newbie in Flex Builder 3. I use a trail version from Flex Builder 3 because it isn't released a new XMP SDK for Flash Builder 4 to create custom panels. I tried to create my own panel from start with "generic panel", but there were to many restrictions.
Now, after installing the flex builder 3 and the necessary jar-plugin for building custom panels I try to create a new project. After creation I get always a fault in design mode. Unfortunatly I don't have any idea what my fault is, because I reproduced step by step the advices in the manual "XMP FileInfo SDK Programmers Guide".
"There is an error at line 99 of your MXML document: