From dcdc03f35d3e466a2e8a17b4bf5351aa6bcf598d Mon Sep 17 00:00:00 2001
From: Johannes Rieken <johannes.rieken@gmail.com>
Date: Thu, 27 Aug 2020 14:00:35 +0200
Subject: [PATCH] activate extensions before trying to resolve a notebook

---
 .../contrib/notebook/browser/notebookServiceImpl.ts          | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/vs/workbench/contrib/notebook/browser/notebookServiceImpl.ts b/src/vs/workbench/contrib/notebook/browser/notebookServiceImpl.ts
index 80598b122bb..b994093ec72 100644
--- a/src/vs/workbench/contrib/notebook/browser/notebookServiceImpl.ts
+++ b/src/vs/workbench/contrib/notebook/browser/notebookServiceImpl.ts
@@ -656,9 +656,12 @@ export class NotebookService extends Disposable implements INotebookService, ICu
 	}
 
 	async resolveNotebook(viewType: string, uri: URI, forceReload: boolean, editorId?: string, backupId?: string): Promise<NotebookTextModel | undefined> {
+
+		await this.canResolve(viewType);
+
 		const provider = this._notebookProviders.get(viewType);
 		if (!provider) {
-			return undefined;
+			throw new Error(`CANNOT load notebook, no provider for '${viewType}'`);
 		}
 
 		let notebookModel: NotebookTextModel | undefined = undefined;