no trouble

no trouble

(That is) not a problem; I don't mind; don't worry about it. A: "It looks like the file was deleted when the computer crashed. I'm so sorry!" B: "It's no trouble. I always make a backup copy at the end of the day." A: "Sorry about last night, I was out of line." B: "No trouble, man. I know you didn't mean it."
See also: no, trouble
Farlex Dictionary of Idioms.

(It's) no trouble (at all).

Do not worry, this is not a problem. Mary: Do you mind carrying all this up to my apartment? Tom: It's no trouble. Bob: Would it be possible for you to get this back to me today? Bill: Sure. No trouble at all.
See also: no, trouble
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
See also:
  • don't get me wrong
  • all in (one's) head
  • don't beat a dead horse
  • cast (one's) lot in with (someone or something)
  • cast lot in
  • (I) don't mind if I do
  • discipline
  • discipline (one) for (something)
  • discipline for
References in classic literature
I see he had a still on an' I didn' wanna giv 'im no stuff, so I says: 'Git deh hell outa here an' don' make no trouble,' I says like dat!
"Dat bloke was a dandy," said Pete, in conclusion, "but he hadn' oughta made no trouble. Dat's what I says teh dem: 'Don' come in here an' make no trouble,' I says, like dat.
Maggie A Girl of the Streets
But I never said nothing, never let on; kept it to myself; it's the best way; then you don't have no quarrels, and don't get into no trouble. If they wanted us to call them kings and dukes, I hadn't no objections, 'long as it would keep peace in the family; and it warn't no use to tell Jim, so I didn't tell him.
Adventures of Huckleberry Finn
class="MsoNormalOne would imagine that such a successful, powerful woman would have no trouble saying no.
ONEYA: Saying Yes to saying No
The Chicago theater scene contains a lot of remarkable personalities, but even so, Alexandra Billings has no trouble standing out.
Top Billings: opening her one-woman show off-Broadway, transgendered performer Alexandra Billings works to expand her Windy City fame. (theater)