![installing - All document classes installed with lyx are unavailable to use - TeX - LaTeX Stack Exchange installing - All document classes installed with lyx are unavailable to use - TeX - LaTeX Stack Exchange](https://i.stack.imgur.com/GO0re.jpg)
installing - All document classes installed with lyx are unavailable to use - TeX - LaTeX Stack Exchange
Please do "not" mark a custom document class as "not found", if it is located in the root.tex directory. · Issue #1838 · texstudio-org/texstudio · GitHub
![Please do "not" mark a custom document class as "not found", if it is located in the root.tex directory. · Issue #1838 · texstudio-org/texstudio · GitHub Please do "not" mark a custom document class as "not found", if it is located in the root.tex directory. · Issue #1838 · texstudio-org/texstudio · GitHub](https://user-images.githubusercontent.com/91599513/137282879-656aeef0-62ff-482f-ac36-a534afd100ed.png)
Please do "not" mark a custom document class as "not found", if it is located in the root.tex directory. · Issue #1838 · texstudio-org/texstudio · GitHub
![Please do "not" mark a custom document class as "not found", if it is located in the root.tex directory. · Issue #1838 · texstudio-org/texstudio · GitHub Please do "not" mark a custom document class as "not found", if it is located in the root.tex directory. · Issue #1838 · texstudio-org/texstudio · GitHub](https://user-images.githubusercontent.com/91599513/137282761-4cda961d-52de-4853-adea-394a5c20354b.png)