Fixed build error

src/app/player/player.component.ts

@@ -314,10 +314,8 @@ export class PlayerComponent implements OnInit, AfterViewInit, OnDestroy {
   downloadFile() {
     const filename = this.playlist[0].title;
     const ext = (this.playlist[0].type === 'audio/mp3') ? '.mp3' : '.mp4';
-    const type = this.playlist[0].type;
-    const url = this.playlist[0].url;
     this.downloading = true;
-    this.postsService.downloadFileFromServer(this.uid, this.uuid, this.sub_id, url, type as FileType).subscribe(res => {
+    this.postsService.downloadFileFromServer(this.uid, this.uuid).subscribe(res => {
       this.downloading = false;
       const blob: Blob = res;
       saveAs(blob, filename + ext);