Error while activating transformation ---- Message no. RSTRAN510

Question

Hi,
while I am Extrating Data From Flat File I encountered this Error.
I am working on <b>ECC 6.0 , BI 7.0.</b>
I am trying this one in IDES, it is newly installed server.
For Flat File Extraction I follwed the Steps
1) I created Data source -
let us assume I have created a Flat File with 3 fields
SNO SNAME MARKS
File is located in workstation
Data source created successfull , I have checked in preview.
2) I have created 2 key Figures, 1 characteristic
3) I have created Infocube
<b>here I have some doubt</b>
while I am creating Infocube, the look and Feel is very different to 3.XX
when i try to create in 3.XX , we can see the Tabs for Kef figs,chars,Time chars and we assign chars to Dimenstions.
when i am creating Infocube in BI 7.0 , I don't Find such a Tabs and how I am assign the chars to Dimension
I created Like this
select
Info Area -
> create Info cube   -
given name of the cube and create (F5).
the Info cube window displayed on the Right side
Then I did like this
select
key Figures -
> Info object Direct Input   
Then I inserted my two key figures SNO,MARKS
--- continue (F5)
Dimension 1 -
>  Info object Direct Input    
I inserted the 1 char  SNAME
--- continue (F5)
Then I saved the Info cube
Info cube saved successfull and activated successfull
<b>Is it Right way For create InfoCube ?</b>
4) I created Transfomation for the Data source
Data source -
> create Transfomation
I have given
Object Type  : InfoCube
Name           :YSTU    - i selected which I already created.
It automaticall taken these parameters
Obejct Type     : DataSource
Data source     : YSTU
source system :PC_FILE
create Transformation (Enter)
I got the Error
<b>Cannot generate proposal</b>
<b>Message no. RSTRAN017</b>
Then I try to activate, I got the Error.
<b>Error while activating transformation</b>
<b>Message no. RSTRAN510</b>
Before I post this , I had searched in Previous SDN post for this Error , But I can't understand the solution.
I have lot of doubts like <b>Basis Guy need to install any Patch</b> or
I did mistake any where.
Help me to Find the solution...
sure you can get the points
Thanks
prasanna

Answer 1

Thank You so much Voodi, yes you are Right , I am not concentrated on Mapping, Now Transformation is activated.
and i created Info Package too for the Data source , created successfully.
I am struck on Final step  <b>creating DTP</b>
when I am creating DTP
Data Transfer Proc  : here I need to give the Dtp name ex: YDTP
DTP Type               : Standard (Can be sheduled)
Target of DTP
<b>Object Type</b>       : Info cube
<b>Name </b>               : YSTU  (This is my Cube Name)
Source of DTP
<b>Object Type</b>     : Data source  (It automatically Taken)
<b>Data source</b>     : This is Disabled
<b>Source system</b>:  This is Disabled
continue (Enter)
I got the message ?
<b>Specify Name of source</b>
and courser is in <b>Data Transfer Proc </b>
Thanks
prasanna