npm config set prefix cant read property of undefined

Using environment described below, create a repro.js file with the following:ĥ7 verbose stack TypeError: Cannot read property 'spec' of undefinedĥ7 verbose stack at Arborist. Installation succeeds as it does if I downgrade to npm 6.x. verbose stack at verbose stack at async Arborist.reify verbose stack at async Install.install (/Users/nicholg/.npm/g/lib/node_modules/npm/lib/install.js:137:5)ĥ8 verbose argv '/Users/nicholg/.npm/g/bin/npm' 'install' '-prefix' '/var/folders/pt/zgtgnf1n5sl7_vw3n7dqvm5w0000gn/T/reproXMRg76' 'leftpad-i18n'Ħ1 error Cannot read property 'spec' of undefined 0 verbose cli verbose cli '/Users/nicholg/.npm/g/bin/npm',Ġ verbose cli '/var/folders/pt/zgtgnf1n5sl7_vw3n7dqvm5w0000gn/T/reproXMRg76',ġ info using info using timing npm:load:whichnode Completed in 1msĤ timing config:load:defaults Completed in 2msĥ timing config:load:file:/Users/nicholg/.npm/g/lib/node_modules/npm/npmrc Completed in 1msĦ timing config:load:builtin Completed in 1msħ timing config:load:cli Completed in 2msĨ timing config:load:env Completed in 0msĩ timing config:load:file:/var/folders/pt/zgtgnf1n5sl7_vw3n7dqvm5w0000gn/T/reproXMRg76/.npmrc Completed in 1msġ0 timing config:load:project Completed in 1msġ1 timing config:load:file:/Users/nicholg/.npmrc Completed in 0msġ2 timing config:load:user Completed in 0msġ3 timing config:load:file:/var/folders/pt/zgtgnf1n5sl7_vw3n7dqvm5w0000gn/T/reproXMRg76/etc/npmrc Completed in 0msġ4 timing config:load:global Completed in 0msġ5 timing config:load:validate Completed in 1msġ6 timing config:load:credentials Completed in 1msġ7 timing config:load:setEnvs Completed in 0msġ9 timing npm:load:configload Completed in 8msĢ0 timing npm:load:setTitle Completed in 3msĢ1 timing npm:load:setupLog Completed in 1msĢ2 timing npm:load:cleanupLog Completed in 2msĢ3 timing npm:load:configScope Completed in 0msĢ4 timing npm:load:projectScope Completed in 1msĢ6 timing config:load:flatten Completed in 2msĢ9 timing idealTree:init Completed in 18msģ0 timing idealTree:userRequests Completed in 2msģ2 silly fetch manifest http fetch GET 304 171ms (from cache)ģ5 timing idealTree:#root Completed in 178msģ6 timing idealTree:node_modules/leftpad-i18n Completed in 0msģ7 timing idealTree:buildDeps Completed in 180msģ8 timing idealTree:fixDepFlags Completed in 0msĤ0 timing reify:loadTrees Completed in 202msĤ1 timing reify:diffTrees Completed in 0msĤ3 timing reify:retireShallow Completed in 0msĤ4 timing reify:createSparse Completed in 0msĤ5 timing reify:loadBundles Completed in 0msĤ6 silly audit bulk request Ĥ8 timing reify:unretire Completed in 1msĥ4 timing command:install Completed in 219msĥ5 verbose stack TypeError: Cannot read property 'spec' of undefinedĥ5 verbose stack at Arborist.

Npm config set prefix cant read property of undefined