LDIF import fails

[Adam Weremczuk <adamw@matrixscience.com>]

Hi all,

I exported from LDAP version 2.4.31 (samba AD 4.0.9) as below:

C:\Windows\system32>ldifde -f export.ldf -s samba.matrixscience.co.uk
Connecting to "samba.matrixscience.co.uk"
Logging in as current user using SSPI
Exporting directory to file export.ldf
Searching for entries...
Writing out 
entries.............................................................
................................................................................ 

................................................................................ 

................................................................................ 

................................................................................ 

........................................................................
453 entries exported

The command has completed successfully

When I import to 2.4.44 through php LDAP admin logging in as 
cn=admin,dc=matrixscience,dc=co,dc=uk the import fails on every line.
It's full of 0x11 and 0x15 errors.
2 examples below:

Could not add the object to the LDAP server.
LDAP said:    Undefined attribute type
Error number:    0x11 (LDAP_UNDEFINED_TYPE)
Description:    The attribute type specified is invalid.
LDIF text import
Could not add object cn=testuser,CN=Users,DC=matrixscience,DC=co,DC=uk
LDAP said:    Undefined attribute type
Error number:    0x11 (LDAP_UNDEFINED_TYPE)
Description:    The attribute type specified is invalid.

Could not add the object to the LDAP server.
LDAP said:    Invalid syntax
Error number:    0x15 (LDAP_INVALID_SYNTAX)
Description:    An invalid attribute value was specified.
LDIF text import
Could not add object cn=Domain 
Controllers,CN=Users,DC=matrixscience,DC=co,DC=uk
LDAP said:    Invalid syntax
Error number:    0x15 (LDAP_INVALID_SYNTAX)
Description:    An invalid attribute value was specified.

Am I doing something fundamentally wrong?

Regards,
Adam Weremczuk