When trying to start a delimited text driver the trace shows

ST:Calling DriverShim.getSchema()

which returns

<nds dtdversion="2.0">
<product build="20090519_235451" instance="DelimitedTextDriver" version="3.5.4">Identity Manager Driver for Delimited Text</product>
<status level="error">
<description>Schema not properly configured</description>

The driver has been heavily modified and so has the schema.

The driver is running and processing input documents as expected.

Does anybody know what this error means, is it related to schemaextensions, driverconfiguration or a combination ?

And could anybody give me a hint on how to troubleshoot it ?

Any help would be apprciated.