Issue in 'specify'

[sukheja-varun]

I want to compile a single .scss file in scss folder but using 'specify' gives
Running "compass:dist" (compass) task specifyoption used, but no files were found. Warning:binaryandversionRange required Use --force to continue.

I am using below code:
compass: { dist: { options: { sassDir: 'src/scss', cssDir: 'src/css', specify:'template1.scss', } } },

I have also tried giving all possible values to 'specify', such as
specify:'src/scss/template1.scss',
specify:'src/scss/template1',
template1.scss',
template1',