When I upload the course as either AICC or Scorm and then try to browse in within Ilias3, I always get the error message:

CallMethod nav_006_settings Constructor undefined.

It is sort of possible to navigate through the course - the error message popping up all the time, but none of the multiple choice questions etc. works.

Do I do something wrong - or is it a bug?

The course works in IE7 - no error message here. The error message only turns up in Firefox.

Which CourseLab version (and build) do you use? There was similar bug in some builds of CourseLab 2.2 (because of some differences in XML object creation in IE and FF). It was fixed. Anyway I strongly recommend to upgrade to latest build of CourseLab 2.3.

I do use CourseLab 2.3

Your test package triggers an endless list of errors within Ilias3:
Validation Error(s):

File: ./data/iliasdataall/lm_data/lm_55386/imsmanifest.xml
[Error] :0:0: File "file:///iliasdata/www/htdocs/ilias3/data/iliasdataall/lm_data/lm_55386/imsmd_rootv1p2p1.xsd" not found.
java.io.FileNotFoundException: /iliasdata/www/htdocs/ilias3/data/iliasdataall/lm_data/lm_55386/imsmd_rootv1p2p1.xsd (No such file or directory)
at java.io.FileInputStream.open(Native Method)
at java.io.FileInputStream.(FileInputStream.java:103)
at java.io.FileInputStream.(FileInputStream.java:66)
at sun.net.www.protocol.file.FileURLConnection.connect(FileURLConnection.java:69)
at sun.net.www.protocol.file.FileURLConnection.getInputStream(FileURLConnection.java:156)
at java.net.URL.openStream(URL.java:960)
at org.apache.xerces.readers.DefaultReaderFactory.createReader(DefaultReaderFactory.java:149)
at org.apache.xerces.readers.DefaultEntityHandler.startReadingFromDocument(DefaultEntityHandler.java:493)
at org.apache.xerces.framework.XMLParser.parseSomeSetup(XMLParser.java:314)
at org.apache.xerces.framework.XMLParser.parse(XMLParser.java:1097)
at org.apache.xerces.validators.common.XMLValidator.resolveSchemaGrammar(XMLValidator.java:2823)
at org.apache.xerces.validators.common.XMLValidator.parseSchemas(XMLValidator.java:2747)
at org.apache.xerces.validators.common.XMLValidator.bindNamespacesToElementAndAttributes(XMLValidator.java:2688)
at org.apache.xerces.validators.common.XMLValidator.callStartElement(XMLValidator.java:1218)
at org.apache.xerces.framework.XMLDocumentScanner.scanElement(XMLDocumentScanner.java:1806)
at org.apache.xerces.framework.XMLDocumentScanner$ContentDispatcher.dispatch(XMLDocumentScanner.java:949)
at org.apache.xerces.framework.XMLDocumentScanner.parseSome(XMLDocumentScanner.java:381)
at org.apache.xerces.framework.XMLParser.parse(XMLParser.java:1098)
at org.apache.xerces.jaxp.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:195)
at javax.xml.parsers.DocumentBuilder.parse(DocumentBuilder.java:124)
at vali.main(vali.java:14)
Warning: validation was turned on but an org.xml.sax.ErrorHandler was not
set, which is probably not what is desired. Parser will use a default
ErrorHandler to print the first 10 errors. Please call
the 'setErrorHandler' method to fix this.
Error: URI=file:///iliasdata/www/htdocs/ilias3/data/iliasdataall/lm_data/lm_55386/imsmanifest.xml Line=3: General Schema Error: Can't get back Schema document's root element :imsmd_rootv1p2p1.xsd.
[Error] :0:0: File "file:///iliasdata/www/htdocs/ilias3/data/iliasdataall/lm_data/lm_55386/adlcp_rootv1p2.xsd" not found.
java.io.FileNotFoundException: /iliasdata/www/htdocs/ilias3/data/iliasdataall/lm_data/lm_55386/adlcp_rootv1p2.xsd (No such file or directory)
at java.io.FileInputStream.open(Native Method)
at java.io.FileInputStream.(FileInputStream.java:103)
at java.io.FileInputStream.(FileInputStream.java:66)
at sun.net.www.protocol.file.FileURLConnection.connect(FileURLConnection.java:69)
at sun.net.www.protocol.file.FileURLConnection.getInputStream(FileURLConnection.java:156)
at java.net.URL.openStream(URL.java:960)
at org.apache.xerces.readers.DefaultReaderFactory.createReader(DefaultReaderFactory.java:149)
at org.apache.xerces.readers.DefaultEntityHandler.startReadingFromDocument(DefaultEntityHandler.java:493)
at org.apache.xerces.framework.XMLParser.parseSomeSetup(XMLParser.java:314)
at org.apache.xerces.framework.XMLParser.parse(XMLParser.java:1097)
at org.apache.xerces.validators.common.XMLValidator.resolveSchemaGrammar(XMLValidator.java:2823)
at org.apache.xerces.validators.common.XMLValidator.parseSchemas(XMLValidator.java:2747)
at org.apache.xerces.validators.common.XMLValidator.bindNamespacesToElementAndAttributes(XMLValidator.java:2688)
at org.apache.xerces.validators.common.XMLValidator.callStartElement(XMLValidator.java:1218)
at org.apache.xerces.framework.XMLDocumentScanner.scanElement(XMLDocumentScanner.java:1806)
at org.apache.xerces.framework.XMLDocumentScanner$ContentDispatcher.dispatch(XMLDocumentScanner.java:949)
at org.apache.xerces.framework.XMLDocumentScanner.parseSome(XMLDocumentScanner.java:381)
at org.apache.xerces.framework.XMLParser.parse(XMLParser.java:1098)
at org.apache.xerces.jaxp.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:195)
at javax.xml.parsers.DocumentBuilder.parse(DocumentBuilder.java:124)
at vali.main(vali.java:14)
Error: URI=file:///iliasdata/www/htdocs/ilias3/data/iliasdataall/lm_data/lm_55386/imsmanifest.xml Line=3: General Schema Error: Can't get back Schema document's root element :adlcp_rootv1p2.xsd.
Error: URI=file:///iliasdata/www/htdocs/ilias3/data/iliasdataall/lm_data/lm_55386/imsmanifest.xml Line=17: Attribute "ANY---adlcp:scormtype" must be declared for element type "resource".
Error: URI=file:///iliasdata/www/htdocs/ilias3/data/iliasdataall/lm_data/lm_55386/imsmanifest.xml Line=24: Attribute "ANY---adlcp:scormtype" must be declared for element type "resource".

Hi, Guenter!
Test package is saved as SCORM 2004 - though manifest itself has the same structure as for SCORM 1.2, some LMS can use strict approach and require all the schema files for SCORM 1.2 to be present. It seems that this is the case.
We plan to publish different versions of test package (AICC, SCORM 1.2 and 2004) within a week or two.