Extension Builder

The generated code in ext_tables.php is missing the following lines of code:

Tx_Extbase_Utility_Extension::registerPlugin(
$_EXTKEY,// The extension name (in UpperCamelCase) or the extension key (in lower_underscore)
'Pi1', // A unique name of the plugin in UpperCamelCase
'Yet Another Gallery' // A title shown in the backend dropdown field
);

Without this code, no plugin can be chosen as page content. Perhaps you could include it out-commented?