err.txt

source/app.d(19,99): Error: template std.algorithm.searching.endsWith cannot deduce function from argument types !()(DirEntry, string), candidates are:
/usr/local/Cellar/dmd/2.067.1/include/d2/std/algorithm/searching.d(946,6):        std.algorithm.searching.endsWith(alias pred = "a == b", Range, Needles...)(Range doesThisEnd, Needles withOneOfThese) if (isBidirectionalRange!Range && Needles.length > 1 && is(typeof(.endsWith!pred(doesThisEnd, withOneOfThese[0])) : bool) && is(typeof(.endsWith!pred(doesThisEnd, withOneOfThese[1..__dollar])) : uint))
/usr/local/Cellar/dmd/2.067.1/include/d2/std/algorithm/searching.d(1013,6):        std.algorithm.searching.endsWith(alias pred = "a == b", R1, R2)(R1 doesThisEnd, R2 withThis) if (isBidirectionalRange!R1 && isBidirectionalRange!R2 && is(typeof(binaryFun!pred(doesThisEnd.back, withThis.back)) : bool))
/usr/local/Cellar/dmd/2.067.1/include/d2/std/algorithm/searching.d(1041,6):        std.algorithm.searching.endsWith(alias pred = "a == b", R, E)(R doesThisEnd, E withThis) if (isBidirectionalRange!R && is(typeof(binaryFun!pred(doesThisEnd.back, withThis)) : bool))
/usr/local/Cellar/dmd/2.067.1/include/d2/std/algorithm/iteration.d(945,16):        instantiated from here: FilterResult!(__lambda3, FilterResult!(__lambda2, DirIterator))
source/app.d(19,73):        instantiated from here: filter!(FilterResult!(__lambda2, DirIterator))
source/app.d(19,73): Error: template std.algorithm.iteration.filter cannot deduce function from argument types !((de) => de.endsWith("mpac.gz"))(FilterResult!(__lambda2, DirIterator)), candidates are:
/usr/local/Cellar/dmd/2.067.1/include/d2/std/algorithm/iteration.d(941,1):        std.algorithm.iteration.filter(alias predicate) if (is(typeof(unaryFun!predicate)))
dmd failed with exit code 1.