SAP BW DUMP Assertion failed CL_RSDD_CS_DATASOURCE while activating a transformation

Hello,

I have a dump when i try to activate a transformation :

The current application program has detected a situation with the ASSERT statement that should not occur.

The reason for this runtime error was one of the following:

- For the checkpoint group specified with the ASSERT statement, the activation mode is "abort".

- A system variant has been used to set the activation mode to "abort" globally for all checkpoint groups in this system.

- The activation mode is set to "abort" at program level.

- The ASSERT statement is not assigned to any checkpoint groups.

ASSERT NOT i_name IS INITIAL OR NOT i_indexid IS INITIAL.

"ASSERTION_FAILED" "CL_RSDD_CS_DATASOURCE=========CP" bzw. CL_RSDD_CS_DATASOURCE=========CM001 "CONSTRUCTOR"

Any ideas please !!

Thank you.