now it may work

app/app-detail.component.ts

@@ -253,12 +253,10 @@ export class AppDetailComponent implements OnInit, OnChanges {
         let extname = path.extname(filename).slice(1);
 
         // let remote = require('electron').remote
-        let filePaths = await new Promise<string[]>((resolve, reject) => {
-            remote.dialog.showOpenDialog({
-                filters: [{name: filename, extensions: [extname]}],
-                properties: ['openFile']
-            }, resolve);
-        });
+        let { filePaths } = (await remote.dialog.showOpenDialog({
+            filters: [{name: filename, extensions: [extname]}],
+            properties: ['openFile']
+        }));
 
         if (filePaths && filePaths[0]) {
             this.import_path = filePaths[0];

app/ygopro.component.ts

@@ -643,7 +643,9 @@ export class YGOProComponent implements OnInit, OnDestroy {
 
     copy(text: string, event: Event) {
         clipboard.writeText(text);
-        $('#copy-wrapper').tooltip({ trigger: 'manual' }).tooltip('show');
+        const copyWrapper = $('#copy-wrapper');
+        copyWrapper.tooltip({ trigger: 'manual' })
+        copyWrapper.tooltip('show');
     }
 
     join_room(room: Room) {