The Federal Public Defender appointed to represent Damien Vargas-Pena has moved for leave to withdraw and has filed a brief in accordance with Anders v. California, 386 U.S. 738, 87 S.Ct. 1396, 18 L.Ed.2d 493 (1967). Vargas-Pena has filed a response, which includes a claim that counsel rendered ineffective assistance. The record is insufficiently developed to allow consideration at this time of Vargas-Pena’s claim of ineffective assistance of counsel. Such claims generally “cannot be resolved on direct appeal when [they have] not been raised1 before the district court since no opportunity existed to develop the record on the merits of the allegations.” United States v. Cantwell, 470 F.3d 1087, 1091 (5th Cir. 2006) (internal quotation marks and citation omitted). Our independent review of the record, counsel’s brief, and Vargas-Pena’s response discloses no nonfrivolous issue for appeal. Accordingly, the motion for leave to withdraw is GRANTED, counsel is excused from further responsibilities herein, *585and the APPEAL IS DISMISSED. See 5th Cir. R. 42.2.