Failed to compile: Multiple "root" queries found

[jjoshkan]

Description

I followed the steps to develop gatsby using this template (Gatsby Starter Elemental). At first, everything works fine and I just have to make some changes to some files. But then after I tried to open the project again, this error occurred. I actually fixed this problem twice using this thread #24902 but for some reason, the problem kept coming back until the solution does not work again.

I found thread #22795 quite similar to my case, but the solution is just renaming the directory when developing the environment and I don't think I have the same problems as this thread.

Steps to reproduce

My GitHub project repo: https://github.com/jjoshkan/portfolio_el
I tried running the gatsby develop command into my Windows PowerShell and got this error message

Expected result

It should output the same as the above screenshot

Actual result

There should not be multiple root queries in either about.tsx and index.tsx (sometimes it's not just index.tsx, the error also tells me that multiple queries in about.tsx detected).

Environment

System:
OS: Windows 10 10.0.19042
CPU: (8) x64 Intel(R) Core(TM) i7-6700HQ CPU @ 2.60GHz
Binaries:
Node: 15.5.1 - C:\Program Files\nodejs\node.EXE
npm: 7.3.0 - C:\Program Files\nodejs\npm.CMD
Languages:
Python: 3.7.2
Browsers:
Chrome: 88.0.4324.182
Edge: Spartan (44.19041.423.0), Chromium (88.0.705.74)
npmPackages:
gatsby: 2.23.3 => 2.23.3
gatsby-image: ^2.3.1 => 2.9.0
gatsby-plugin-codegen: ^1.1.0 => 1.2.14
gatsby-plugin-disqus: ^1.1.4 => 1.2.2
gatsby-plugin-mdx: ^1.1.3 => 1.8.0
gatsby-plugin-postcss: ^2.2.1 => 2.3.13
gatsby-plugin-react-helmet: ^3.2.1 => 3.8.0
gatsby-plugin-sharp: ^2.5.3 => 2.12.0
gatsby-plugin-typescript: ^2.4.0 => 2.10.0
gatsby-remark-images: ^3.2.1 => 3.9.0
gatsby-source-filesystem: ^2.2.2 => 2.9.0
gatsby-transformer-sharp: ^2.4.3 => 2.10.0
npmGlobalPackages:
gatsby-cli: 2.19.1

[LekoArts]

Hi!

Sorry to hear you're running into an issue. To help us best begin debugging the underlying cause, it is incredibly helpful if you're able to create a minimal reproduction. This is a simplified example of the issue that makes it clear and obvious what the issue is and how we can begin to debug it.

If you're up for it, we'd very much appreciate if you could provide a minimal reproduction and we'll be able to take another look.

Thanks for using Gatsby! 💜

[LekoArts]

Hi!

Since we didn't receive an answer for 7 days or more about the ask of a reproduction I'm going to close this now, as we can't do much to help without a reproduction. If you are able to create a minimal reproduction for this then please do answer here or open a new issue with a reproduction. Thanks!