build faild !! cannot build source code while executing yarn build

[albert-immigrant]

While i build react-complex-tree from source code
I got error message
"Type 'unknown' is not assignable to type 'ReactNode' "

src/environmentActions/EnvironmentActionsProvider.tsx:260:7

src/treeActions/TreeActionsProvider.tsx:100:7

Is there any body got the same problem?

how to fix this error?

[lukasbach]

That error shouldn't occur during build. Can you share the versions of nodejs and yarn you are using, as well as which command you ran in which folder, and the full error log? Thanks!

[lukasbach]

I actually just encountered a similar problem, that occured when I ran yarn in a folder that was not the root folder, causing yarn to ignore volta config in the root folder, thus using an old yarn version and ignoring the lock file because it didn't understand it and then used an incorrect version of react, which caused the same error message. So if you encounter this, make sure you have yarn >3 installed, ideally just have volta installed because that will make sure that you use the correct version of nodejs and yarn, and make sure to run the yarn install command from the top level folder.