Opening notebook for first time fails on VSCode Insiders

[DonJayamanne]

• Version: 1.46.0-insider
• OS: Windows

Steps to Reproduce:

1.When opening an ipynb file in using the Python extension and VS COde Notebooks API, windows user always gets an error
2.Below is the error log. Opening the file again works.
3. Unable to repro on Mac (3 users), but always reproducible on Windows.

Log

``` [Yesterday 11:02 AM] Jim Griesmer To be clearer: console.ts:137 [Extension Host] (node:148856) [DEP0005] DeprecationWarning: Buffer() is deprecated due to security and usability issues. Please use the Buffer.alloc(), Buffer.allocUnsafe(), or Buffer.from() methods instead. (at writeOut (internal/process/warning.js:27:3))t.log @ console.ts:137 $logExtensionHostMessage @ mainThreadConsole.ts:39 _doInvokeHandler @ rpcProtocol.ts:402 _invokeHandler @ rpcProtocol.ts:387 _receiveRequest @ rpcProtocol.ts:303 _receiveOneMessage @ rpcProtocol.ts:230 (anonymous) @ rpcProtocol.ts:105 fire @ event.ts:587 fire @ ipc.net.ts:453 _receiveMessage @ ipc.net.ts:733 (anonymous) @ ipc.net.ts:592 fire @ event.ts:587 acceptChunk @ ipc.net.ts:239 (anonymous) @ ipc.net.ts:200 t @ ipc.net.ts:28 emit @ events.js:203 addChunk @ _stream_readable.js:295 readableAddChunk @ _stream_readable.js:276 Readable.push @ _stream_readable.js:210 onStreamRead @ internal/stream_base_commons.js:166 notificationsAlerts.ts:40 Unable to open 'RunByLine.ipynb': Cannot open notebook of type 'jupyter-notebook'. onDidChangeNotification @ notificationsAlerts.ts:40 (anonymous) @ notificationsAlerts.ts:26 fire @ event.ts:587 addNotification @ notifications.ts:207 notify @ notificationService.ts:106 doHandleOpenEditorError @ editorGroupView.ts:1056 (anonymous) @ editorGroupView.ts:984 processTicksAndRejections @ internal/process/task_queues.js:85 async function (async) (anonymous) @ editorGroupView.ts:973 doShowEditor @ editorGroupView.ts:971 doOpenEditor @ editorGroupView.ts:954 openEditor @ editorGroupView.ts:882 openEditor @ editorService.ts:530 onEditorOpening @ notebook.contribution.ts:327 open @ notebook.contribution.ts:160 onGroupWillOpenEditor @ editorService.ts:509 (anonymous) @ editorService.ts:165 fire @ event.ts:587 openEditor @ editorGroupView.ts:875 (anonymous) @ editorService.ts:1299 (anonymous) @ explorerViewlet.ts:218 openEditor @ editorService.ts:1298 (anonymous) @ explorerView.ts:429 fire @ event.ts:587 open @ listService.ts:542 onSelection @ listService.ts:537 (anonymous) @ listService.ts:498 fire @ event.ts:587 (anonymous) @ event.ts:56 (anonymous) @ event.ts:810 fire @ event.ts:587 _set @ abstractTree.ts:1020 set @ abstractTree.ts:1010 setSelection @ abstractTree.ts:1219 onPointer @ listWidget.ts:634 onPointer @ abstractTree.ts:1138 fire @ event.ts:589 (anonymous) @ event.ts:56 fire @ event.ts:587 o @ event.ts:16 Show 10 more frames notificationsAlerts.ts:40 Unable to open 'RunByLine.ipynb': Cannot open notebook of type 'jupyter-notebook'. (1 liked) ```

Does this issue occur when all extensions are disabled?: No

@rebornix /cc

[DonJayamanne]

@rebornix I'm not on a Windows PC, I'm on a Mac and do not see this issue at all.
Will try to setup a Windows PC to see if I can repro this. However based on the error logs, the errors are coming from the VS Code (not extension) & it oddly enough it works without any issues on Macs.

[DonJayamanne]

Apologies , this is a bug at our end.
Sorry for wasting your time @rebornix

[rebornix]

@DonJayamanne no worries.

What happened in this case is we try to activate Python extension when opening a .ipynb file but the activate method returns before the content provider for .ipynb file is registered so the core fails as it doesn't find any provider for the notebook.

[heychazza]

I also have this issue, https://pastebin.com/zSVZLcPX any eta for a fix? I rely on this :(