unknown webview view

```javascript Error: unknown webview view at I.getWebviewView in src/vs/workbench/api/browser/mainThreadWebviewViews.ts:129:10 at I.$setWebviewViewTitle in src/vs/workbench/api/browser/mainThreadWebviewViews.ts:43:28 at v._doInvokeHandler in src/vs/workbench/services/extensions/common/rpcProtocol.ts:455:17 at v._invokeHandler in src/vs/workbench/services/extensions/common/rpcProtocol.ts:440:32 at v._receiveRequest in src/vs/workbench/services/extensions/common/rpcProtocol.ts:370:19 at v._receiveOneMessage in src/vs/workbench/services/extensions/common/rpcProtocol.ts:296:10 at <anonymous> in src/vs/workbench/services/extensions/common/rpcProtocol.ts:161:42 at f.invoke in src/vs/base/common/event.ts:626:17 at a.deliver in src/vs/base/common/event.ts:828:22 at c.fire in src/vs/base/common/event.ts:789:24 at o.fire in src/vs/base/parts/ipc/common/ipc.net.ts:646:19 at g._receiveMessage in src/vs/base/parts/ipc/common/ipc.net.ts:988:23 at <anonymous> in src/vs/base/parts/ipc/common/ipc.net.ts:852:73 at f.invoke in src/vs/base/common/event.ts:626:17 at a.deliver in src/vs/base/common/event.ts:828:22 at c.fire in src/vs/base/common/event.ts:789:24 at c.acceptChunk in src/vs/base/parts/ipc/common/ipc.net.ts:390:21 at <anonymous> in src/vs/base/parts/ipc/common/ipc.net.ts:346:51 at _listener in src/vs/base/parts/ipc/node/ipc.net.ts:87:4 at Socket.emit (node:events:526:28) at addChunk (node:internal/streams/readable:315:12) at readableAddChunk (node:internal/streams/readable:289:9) at Readable.push (node:internal/streams/readable:228:10) at Pipe.onStreamRead (node:internal/stream_base_commons:190:23) ``` [Go to Errors Site](https://vscode-errors.azurewebsites.net/card?ch=d045a5eda657f4d7b676dedbfa7aab8207f8a075&bH=aa95b349-6c8d-27b6-af01-40f0d826727a)