Locally served SPFx webpart not loading in the workbench.

Adnan Binzahir

I have created a new webpart for a sharepoint site using SPFx. But after using `gulp serve` the webpart is not loading in the workbench. It shows the following warning:

Warning

Your web part will not appear in the toolbox. Please make sure "gulp serve" is running in a web part project. Please refresh the page once "gulp serve" is running.

Note: I have installed the certificate using `gulp trust-dev-cert` But still I am getting the same error.

2 Replies

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Md Tahmidul Abedin3y ago
Accepted answer
Open the following link in a browser tab:
```
 https://localhost:4321/temp/manifests.js
```
If you are unable to see the contents of the file, please try reloading the workbench. Afterward, you can re-run "gulp serve" to proceed.

For details Understanding, follow this link: https://github.com/SharePoint/sp-dev-docs/issues/8336
Adnan Binzahir3y ago
Md Tahmidul Abedin,Thanks a lot. It worked.