Error in online workbench: SPFx webpart component doesn't found in Manifest for version "1.1.1"

I updated Yeoman plugin Pernille-Eskebo/generator-sharepoint and created client-side web part project. I haven't changed anything after scafolding done by yo.When I try to add webpart in SharePoint online workbench and I am getting below error:

 When I check browser console I got below error messages:

• Failed to execute 'postMessage' on 'DOMWindow': The target origin provided ('https://portal.office.com') does not match the recipient window's origin ('https://login.microsoftonline.com').
  O365SuiteServiceProxy.RequestExecutor.sendPostMessage @ r1.res.office365.com/o365/versionless/shellplusg2m_c4685b49.js:29
• Uncaught (in promise) Error: ***The value for "error" must not be undefined
  at Function.e.isNotNullOrUndefined (workbench-assembly_en-us_af4559a08d17da3bbdbb9c0fc7b7ca13.js:119)
  at Function.e.logError (workbench-assembly_en-us_af4559a08d17da3bbdbb9c0fc7b7ca13.js:119)
  at workbench-assembly_en-us_af4559a08d17da3bbdbb9c0fc7b7ca13.js:150
  at <anonymous>

I noticed there is updated packages for Pernille-Eskebo/sp-webpart-base with version 1.1.1 in package.json. Is this error is related to this updated package?