I need help to modify the values for diplomacy.

I was able to create a .pack from my changes but they aren't working when I test them in a new game.

Here's what I did :

1. Loaded Tweak and changed some value in diplomacy_attitudes table (trying to change alliance value to 150, cap 100 drift -2)
2. Export the table and checked "table dependencies"
3. Loaded BOB and selected the table in column 1&2 and made sure the pack was selected in column #3
4. The creation of the pack was successful (green), but i get an orange warning during the convert table to binary

the error : execute add_diplomacy_attitudes_table "c:\users\gaming\documents\shogun 2 - modding\modding\raw_data\EmpireDesignData\diplomacy_attitudes.xml" c:\users\gaming\documents\shogun 2 - modding\modding\working_data\db\diplomacy_attitudes_tables\diplomacy_attitudes
There is no pack file to add a file to.
Incorrect flag 2 specified - should be append or replace
add_diplomacy_attitudes_table did not parse the entire stream - - modding\modding\working_data\db\diplomacy_attitudes_tables\diplomacy_attitudes remained unused.

Then I start a new game, get into an alliance and the new value isn't there...

What did I do wrong ?

Thanks