OCI8 mode required, but OCI7 mode used

[Rens]

I'm getting the error message 'A query with LOB's requires OCI8 mode, but OCI7 mode is used.'.

PLSQL Developer version: 10.0.5.1710 01.88230
OCI: version 11.1
Oracle XE installed 11.2.0
Oracle database 11g enterprise edition release 11.2.0.4.0

Can you help me with this error?

 

[IvanZ]

Check the preference "Force OCI7 mode on OCI8"
under Connection

 

[Rens]

Thanks, fixed!