Github user drod331 commented on the issue: https://github.com/apache/zeppelin/pull/3243 @jongyoul Honestly, I'm not sure. I don't have a ton of experience with npm, I just knew that the dependency was breaking my build and changing package-lock.json locally worked for me. It seems like the right answer here, thanks to @Savalek , might be bumping npm-run-all in package.json to a newer version, 4.1.5, which no longer uses the (grand)parent dependency of the offending library.
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