Strapi local host is not starting after installing graphql

[Nomishka]

• Strapi Version:
  4.16.0
• Operating System:
  Chrome OS
• Database:
  better-sqlite3
• Node Version:
  v20.10.0
• NPM Version:
  10.2.3

I am creating a blog with strapi and astro. I just wanted to use graphql for my project. After I installed graphql to my strapi directory and when try to do “npm run develop” it gives me an error. The error is given below.

“Error: Cannot use GraphQLScalarType “Time” from another module or realm.”

Please help me to solve this problem. I tried below things,

• Checking duplicate dependencies.
• Remove node modules and npm install.
• Remove package.json graphql and adding again.
• Adding resources in the package.json.
• Clear npm cache.

Any of these didn’t solve this error.

---

[Paul_Brats]

Just tested GraphQl Plugin from the market store and it worked.

I installed it via

 yarn add @strapi/plugin-graphql

restarted Strapi app. When navigate to http://localhost:1337/graphql

I get the following screen.

[arthurjacquemin]

@Nomishka look at this issue

Error using version 15.8.0 of graphql with the @strapi/plugin-graphql extension

[Paul_Brats]

Thank you for sharing the link.