Error while running webapp(generator)

[MN-Dheeraj]

I installed yo and generator-webapp with the following commands.

npm install -g yo
npm install -g generator-webapp

But, running "yo webapp" gives this error.

PS D:\Yeoman_code-gen\webapp> yo webapp
(node:19092) Warning: Accessing non-existent property 'cat' of module exports inside circular dependency
(Use `node --trace-warnings ...` to show where the warning was created)
(node:19092) Warning: Accessing non-existent property 'cd' of module exports inside circular dependency
(node:19092) Warning: Accessing non-existent property 'chmod' of module exports inside circular dependency
(node:19092) Warning: Accessing non-existent property 'cp' of module exports inside circular dependency
(node:19092) Warning: Accessing non-existent property 'dirs' of module exports inside circular dependency
(node:19092) Warning: Accessing non-existent property 'pushd' of module exports inside circular dependency
(node:19092) Warning: Accessing non-existent property 'popd' of module exports inside circular dependency
(node:19092) Warning: Accessing non-existent property 'echo' of module exports inside circular dependency
(node:19092) Warning: Accessing non-existent property 'tempdir' of module exports inside circular dependency
(node:19092) Warning: Accessing non-existent property 'pwd' of module exports inside circular dependency
(node:19092) Warning: Accessing non-existent property 'exec' of module exports inside circular dependency
(node:19092) Warning: Accessing non-existent property 'ls' of module exports inside circular dependency
(node:19092) Warning: Accessing non-existent property 'find' of module exports inside circular dependency
(node:19092) Warning: Accessing non-existent property 'grep' of module exports inside circular dependency
(node:19092) Warning: Accessing non-existent property 'head' of module exports inside circular dependency
(node:19092) Warning: Accessing non-existent property 'ln' of module exports inside circular dependency
(node:19092) Warning: Accessing non-existent property 'mkdir' of module exports inside circular dependency
(node:19092) Warning: Accessing non-existent property 'rm' of module exports inside circular dependency
(node:19092) Warning: Accessing non-existent property 'mv' of module exports inside circular dependency
(node:19092) Warning: Accessing non-existent property 'sed' of module exports inside circular dependency
(node:19092) Warning: Accessing non-existent property 'set' of module exports inside circular dependency
(node:19092) Warning: Accessing non-existent property 'sort' of module exports inside circular dependency
(node:19092) Warning: Accessing non-existent property 'tail' of module exports inside circular dependency
(node:19092) Warning: Accessing non-existent property 'test' of module exports inside circular dependency
(node:19092) Warning: Accessing non-existent property 'to' of module exports inside circular dependency
(node:19092) Warning: Accessing non-existent property 'toEnd' of module exports inside circular dependency
(node:19092) Warning: Accessing non-existent property 'touch' of module exports inside circular dependency
(node:19092) Warning: Accessing non-existent property 'uniq' of module exports inside circular dependency
(node:19092) Warning: Accessing non-existent property 'which' of module exports inside circular dependency
Error webapp

generator.run is not a function

[arche94]

Precisely the same error here: happening on MacOS Catalina 10.15.7, if it matters.

(node:46786) Warning: Accessing non-existent property 'cat' of module exports inside circular dependency
(Use `node --trace-warnings ...` to show where the warning was created)
(node:46786) Warning: Accessing non-existent property 'cd' of module exports inside circular dependency
(node:46786) Warning: Accessing non-existent property 'chmod' of module exports inside circular dependency
(node:46786) Warning: Accessing non-existent property 'cp' of module exports inside circular dependency
(node:46786) Warning: Accessing non-existent property 'dirs' of module exports inside circular dependency
(node:46786) Warning: Accessing non-existent property 'pushd' of module exports inside circular dependency
(node:46786) Warning: Accessing non-existent property 'popd' of module exports inside circular dependency
(node:46786) Warning: Accessing non-existent property 'echo' of module exports inside circular dependency
(node:46786) Warning: Accessing non-existent property 'tempdir' of module exports inside circular dependency
(node:46786) Warning: Accessing non-existent property 'pwd' of module exports inside circular dependency
(node:46786) Warning: Accessing non-existent property 'exec' of module exports inside circular dependency
(node:46786) Warning: Accessing non-existent property 'ls' of module exports inside circular dependency
(node:46786) Warning: Accessing non-existent property 'find' of module exports inside circular dependency
(node:46786) Warning: Accessing non-existent property 'grep' of module exports inside circular dependency
(node:46786) Warning: Accessing non-existent property 'head' of module exports inside circular dependency
(node:46786) Warning: Accessing non-existent property 'ln' of module exports inside circular dependency
(node:46786) Warning: Accessing non-existent property 'mkdir' of module exports inside circular dependency
(node:46786) Warning: Accessing non-existent property 'rm' of module exports inside circular dependency
(node:46786) Warning: Accessing non-existent property 'mv' of module exports inside circular dependency
(node:46786) Warning: Accessing non-existent property 'sed' of module exports inside circular dependency
(node:46786) Warning: Accessing non-existent property 'set' of module exports inside circular dependency
(node:46786) Warning: Accessing non-existent property 'sort' of module exports inside circular dependency
(node:46786) Warning: Accessing non-existent property 'tail' of module exports inside circular dependency
(node:46786) Warning: Accessing non-existent property 'test' of module exports inside circular dependency
(node:46786) Warning: Accessing non-existent property 'to' of module exports inside circular dependency
(node:46786) Warning: Accessing non-existent property 'toEnd' of module exports inside circular dependency
(node:46786) Warning: Accessing non-existent property 'touch' of module exports inside circular dependency
(node:46786) Warning: Accessing non-existent property 'uniq' of module exports inside circular dependency
(node:46786) Warning: Accessing non-existent property 'which' of module exports inside circular dependency
Error webapp 

generator.run is not a function

[gba-foundever]

Same here

OS version/details: MacOs 15.0.1
Node version: 23.3.0
npm version: 10.9.0
Version of yo : 5.0.0

yeoman/yo#818

but just warning part

[JoshuaKGoldberg]

I think this is really two bugs:

• 1️⃣ A bunch of Warning: Accessing nonexistent property ... log spew
• 2️⃣ Crashing with generator.run is not a function crash

1️⃣ The log spew is annoying and happens only in some generators I've tried. It does not repro with yo code but does repro with react-webapp and webapp. Looks like it was reported on yo in yeoman/yo#652, which points to shelljs/shelljs#991. I think this is likely from the generators having old dependencies.

2️⃣ From generators I've tried, the crash only happens with yo webapp. code and react-webapp run fine. I'll go ahead and transfer this over to the generator-webapp repo for triage.

Cheers! 🎩