Use of minimal template produces parse error

[esszett]

Viewing a ressource in frontend with use of minimal template gives parse error.
(No error with same ressource and use of MODxHost tpl).

Warning: array_merge(): Argument #2 is not an array in /Users/.../Sites/modx1013rc3/www/manager/includes/document.parser.class.inc.php on line 1433
« MODX Parse Error »
MODX encountered the following error while attempting to parse the requested resource:
« PHP Parse Error »
PHP error debug
Error : array_merge(): Argument #2 is not an array
ErrorType[num] : WARNING[2]
File : /Users/.../Sites/modx1013rc3/www/manager/includes/document.parser.class.inc.php
Line : 1433
Source : $documentObject= array_merge($documentObject, $tmplvars);
Basic info
REQUEST_URI : http://local.modx1013rc3/minimal-base.html
Resource : [1]
Referer : http://local.modx1013rc3/manager/index.php
User Agent : Mozilla/5.0 (Macintosh; Intel Mac OS X 10.9; rv:27.0) Gecko/20100101 Firefox/27.0
IP : 127.0.0.1
Benchmarks
MySQL : 0,0022 s (4 Requests)
PHP : 0,0039 s
Total : 0,0061 s
Memory : 0,93710708618164 mb

Backtrace
1 DocumentParser->executeParser()
index.php on line 144
2 DocumentParser->prepareResponse()
manager/includes/document.parser.class.inc.php on line 1597
3 DocumentParser->getDocumentObject()
manager/includes/document.parser.class.inc.php on line 1618
4 array_merge()
manager/includes/document.parser.class.inc.php on line 1433