Merge pull request #46 from oslabs-beta/FL/Show-Panel-Bug

Fixed bug for Show Panel command

Author: Louka3

src/extension.ts

@@ -60,7 +60,18 @@ function activate(context: vscode.ExtensionContext) {
 
 // Command to show panel if it is hidden
 const showPanel: vscode.Disposable = vscode.commands.registerCommand('myExtension.showPanel', () => {
-panel.reveal(columnToShowIn);
+if (!panel) {
+
+showNotification({message: 'Please select root file of app', timeout: 3000});
+return;
+
+} else {
+
+panel.reveal(columnToShowIn);
+return;
+
+}
+
 });
 
 context.subscriptions.push(pickFile, showPanel);