0 info it worked if it ends with ok 1 verbose cli [ '/usr/local/bin/node', 1 verbose cli '/usr/local/bin/npm', 1 verbose cli 'uninstall', 1 verbose cli '-g', 1 verbose cli 'webpack' ] 2 info using npm@5.0.3 3 info using node@v8.0.0 4 verbose npm-session bcc51cdedb9ff1c1 5 silly install loadCurrentTree 6 silly install readGlobalPackageData 7 silly install loadIdealTree 8 silly install cloneCurrentTreeToIdealTree 9 silly install loadShrinkwrap 10 silly uninstall loadAllDepsIntoIdealTree 11 silly install loadAllDepsIntoIdealTree 12 error cb() never called! 13 error This is an error with npm itself. Please report this error at: 14 error