message: file and directory names are case-sensitive
diff: @@ -7,7 +7,7 @@ import { Point3dArray } from "../PointHelpers";
  import { Checker } from "./Checker";
  import { expect } from "chai";
  import { Plane3dByOriginAndUnitNormal } from "../AnalyticGeometry";
  -import { Sample } from "../Serialization/GeometrySamples";
  +import { Sample } from "../serialization/GeometrySamples";
  function exercisePointString3d(ck: Checker, lsA: PointString3d) {
  const numPoints = lsA.numPoints();
  