Cannot Find Manifest error in new Sharepoint WebPart

Question

I am learning Sharepoint development and am following the basic tutorial at https://zcusa.951200.xyz/en-us/sharepoint/dev/spfx/web-parts/get-started/build-a-hello-world-web-part

I have completed all previous steps as far as setting up the 365 tenant and setting up my development environment. Here are the versions I have installed.

yo --version
4. 3.1
node --version
16. 15.1 (same error occurs with other supported versions mentioned in the guide)
yeoman generator version
@microsoft/generator-sharepoint@1.16.1

I am on a Windows 10 64-bit computer.

I can run the yeoman build and it installs with no issues in the console, and can run gulp serve with no errors in the console. However, I then receive the following error when adding the default Hello World WebPart to the workbench page. I have looked into the manifest files and determined this is the '@microsoft/sp-property-pane"' component, which does appear in the node_modules folder, and is properly referenced in every manifest file I can find. I have also tried running it from multiple pages in Sharepoint such as "https://4fly6x.sharepoint.com/sites/ConnectDashboard/_layouts/15/workbench.aspx" and "https://4fly6x.sharepoint.com/_layouts/15/workbench.aspx". I have also tried adding the query "?debug=true&noredir=true&debugManifestsFile=https://localhost:4321/temp/manifests.js" to both URLs as suggested in the console output to no avail.

I have not made any changes to the files except the config/serve.json file and have double checked and gone through the previous tutorials again to make sure I have not missed any steps. Any help to resolve this would be greatly appreciated, as I cannot move on from this step.

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ERROR:
Cannot find manifest for f9e737b7-f0df-4597-ba8c-3060f82380db_1.16.1. Store had [1.16.0]. Service worker version: (none),DurableN1=true

Accepted Answer

Hi @Jesse Kuras ,

According to my research and testing, I reproduced your issue. If I upgrade the version of SPFX to v1.16.1, I will get the same error. As a workaround, I recommend that you can go back to a previous version, such as v1.16.0 .

Similar issue for reference: https://github.com/SharePoint/sp-dev-docs/issues/8623

Hope it can help you. Thanks for your understanding.

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Cannot Find Manifest error in new Sharepoint WebPart

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