Error using docusaurus: Class extends value undefined

[sedghi]

trafficstars

I'm getting the following error

2:22:51 PM: [en] Creating an optimized production build...
2:22:52 PM: Unable to build website for locale "en".
2:22:52 PM: TypeError: Class extends value undefined is not a constructor or null
2:22:52 PM:     at Object.<anonymous> (/opt/build/repo/node_modules/typedoc-plugin-markdown/dist/theme.js:16:39)
2:22:52 PM:     at Module._compile (internal/modules/cjs/loader.js:1063:30)
2:22:52 PM:     at Object.Module._extensions..js (internal/modules/cjs/loader.js:1092:10)
2:22:52 PM:     at Module.load (internal/modules/cjs/loader.js:928:32)
2:22:52 PM:     at Function.Module._load (internal/modules/cjs/loader.js:769:14)
2:22:52 PM:     at Module.require (internal/modules/cjs/loader.js:952:19)
2:22:52 PM:     at require (internal/modules/cjs/helpers.js:88:18)
2:22:52 PM:     at Object.<anonymous> (/opt/build/repo/node_modules/typedoc-plugin-markdown/dist/index.js:7:17)
2:22:52 PM:     at Module._compile (internal/modules/cjs/loader.js:1063:30)
2:22:52 PM:     at Object.Module._extensions..js (internal/modules/cjs/loader.js:1092:10)
2:22:52 PM:     at Module.load (internal/modules/cjs/loader.js:928:32)
2:22:52 PM:     at Function.Module._load (internal/modules/cjs/loader.js:769:14)
2:22:52 PM:     at Module.require (internal/modules/cjs/loader.js:952:19)
2:22:52 PM:     at require (internal/modules/cjs/helpers.js:88:18)
2:22:52 PM:     at Object.<anonymous> (/opt/build/repo/node_modules/docusaurus-plugin-typedoc/dist/plugin.js:24:35)
2:22:52 PM:     at Module._compile (internal/modules/cjs/loader.js:1063:30)

[tgreyuk]

hi. can you please confirm versions being used of the following?

• typedoc
• typedoc-plugin-markdown
• docusaurus-plugin-typedoc
• docusuaurus

thanks

[raimonkh]

I also see this issue. I use:

• docusaurus-plugin-typedoc 0.15 (both 0.15.1 and 0.15.3)
• typedoc 0.21.9
• typedoc-plugin-markdown 3.11.3

If this is any hint, I see this error after updating to react nativce 65

Tryed typedoc v 0.21 and 0.22

[raimonkh]

Sorted by downgrading typedoc from 21.9 to 21.0 Docusaurus plugin to 0.15.0 typedoc plugin markdown to 3.10.0 also I had typescript updated to 4.4 so downgraded to 4.2

[mayur-bhandari]

I am facing a similar issue when running the typedoc command.

Command: npx typedoc --options typedoc.json

My typedoc.json file:

{
    "entryPoints": [
        ...
    ],
    "out": "doc",
    "excludePrivate": true,
    "excludeProtected": true,
    "excludeInternal": true,
    "disableSources": true,
    "readme": "none",
    "hideGenerator": true,
    "hideBreadcrumbs": true // getting issue with this property
}

I am using the below mentioned versions,

"typedoc": "^0.20.37",
"typedoc-plugin-markdown": "^3.11.3",
"typescript": "^3.9.10"

The error I am getting is as follows,

Error: The plugin /Users/mac-18/project/node_modules/typedoc-plugin-markdown could not be loaded.
Info: TypeError: Class extends value undefined is not a constructor or null
    at Object.<anonymous> (/Users/mac-18/project/node_modules/typedoc-plugin-markdown/dist/theme.js:16:39)
    at Module._compile (internal/modules/cjs/loader.js:1063:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1092:10)
    at Module.load (internal/modules/cjs/loader.js:928:32)
    at Function.Module._load (internal/modules/cjs/loader.js:769:14)
    at Module.require (internal/modules/cjs/loader.js:952:19)
    at require (internal/modules/cjs/helpers.js:88:18)
    at Object.<anonymous> (/Users/mac-18/project/node_modules/typedoc-plugin-markdown/dist/index.js:7:17)
    at Module._compile (internal/modules/cjs/loader.js:1063:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1092:10)
Error: Tried to set an option (hideBreadcrumbs) that was not declared.

[wxsms]

same issue.

    "typedoc": "^0.21.4",
    "typedoc-plugin-markdown": "^3.11.7",
    "typescript": "^4.1.5",

[chbro]

same here