message: Don't crash on null relativePath
diff: @@ -863,6 +863,9 @@ export class Scope {
  * @param relativePath
  */
  protected getFileByRelativePath(relativePath: string) {
  + if (!relativePath) {
  + return;
  + }
  let files = this.getAllFiles();
  for (let file of files) {
  if (file.pkgPath.toLowerCase() === relativePath.toLowerCase()) {
  