npm update fails with "Cannot read property 'parent' of undefined"

[zehavibarak]

Hi,

Upgraded to 15.0.1. Getting error while trying to update packages via npm up command:

1734 verbose stack TypeError: Cannot read property 'parent' of undefined 1734 verbose stack at Arborist.[canPlacePeers] (C:\Program Files\nodejs\node_modules\npm\node_modules@npmcli\arborist\lib\arborist\build-ideal-tree.js:1430:14) 1734 verbose stack at Arborist.[canPlaceDep] (C:\Program Files\nodejs\node_modules\npm\node_modules@npmcli\arborist\lib\arborist\build-ideal-tree.js:1421:32) 1734 verbose stack at Arborist.[placeDep] (C:\Program Files\nodejs\node_modules\npm\node_modules@npmcli\arborist\lib\arborist\build-ideal-tree.js:1061:36) 1734 verbose stack at Arborist.[placeDep] (C:\Program Files\nodejs\node_modules\npm\node_modules@npmcli\arborist\lib\arborist\build-ideal-tree.js:1212:41) 1734 verbose stack at Arborist.[placeDep] (C:\Program Files\nodejs\node_modules\npm\node_modules@npmcli\arborist\lib\arborist\build-ideal-tree.js:1212:41) 1734 verbose stack at Arborist.[placeDep] (C:\Program Files\nodejs\node_modules\npm\node_modules@npmcli\arborist\lib\arborist\build-ideal-tree.js:1212:41) 1734 verbose stack at C:\Program Files\nodejs\node_modules\npm\node_modules@npmcli\arborist\lib\arborist\build-ideal-tree.js:766:46 1734 verbose stack at Array.map () 1734 verbose stack at Arborist.[buildDepStep] (C:\Program Files\nodejs\node_modules\npm\node_modules@npmcli\arborist\lib\arborist\build-ideal-tree.js:766:8) 1734 verbose stack at async Arborist.buildIdealTree (C:\Program Files\nodejs\node_modules\npm\node_modules@npmcli\arborist\lib\arborist\build-ideal-tree.js:202:7) 1735 verbose cwd ...\ClientApp 1736 verbose Windows_NT 10.0.18362 1737 verbose argv "C:\Program Files\nodejs\node.exe" "C:\Program Files\nodejs\node_modules\npm\bin\npm-cli.js" "up" 1738 verbose node v15.0.1 1739 verbose npm v7.0.3

Thanks,

[hmt]

For the time being, to install your packages you can fall back to yarn. That worked for me.

[hmt]

15.1 has fixed this for me. npm is now at 7.0.8 on MacOS 10.15.7

[shnooshnoo]

hi @zehavibarak i wanted to look into this issue but was not able to reproduce. Do you think this is already fixed by now and can be closed?

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