make in eclipse

[vin Hari]

Dear experts,

please please solve this problem as i am strucked very badly,

actually i have created a jars for the cdt plugins and kept in dropins folder i am getting everything but

when i try to compile with the makefile project with make

it is giving me
(Cannot run program "make": The system cannot find the file specified.)

it is showing even though i installed minGw and set its path when i open any command prompt and type gcc
it shows and even i have written small program with makefile and tested from command prompt it is working,

but inside the eclipse it is showing like can please tell me what to do is there any other way to solve or any other variable to be set
in the eclipse.

[vin Hari]

Dear experts,

please answer to my question one more thing when i saw the log file i found it was showing some thing like,

[b]!ENTRY org.eclipse.cdt.managedbuilder.core 4 0 2010-01-16 14:20:56.647
!MESSAGE invalid value id[/b]

is there anything i can get from this what is the meaning of this,

whether there is a problem with the dropins folder or export (for creating a jar)please inform.

thanks in advance.