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fix: invalid version error when modules not installed #4859

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merged 1 commit into from
Nov 26, 2019
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fix: invalid version error when modules not installed #4859

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4 changes: 4 additions & 0 deletions packages/@vue/cli/lib/Upgrader.js
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Original file line number Diff line number Diff line change
Expand Up @@ -201,6 +201,10 @@ module.exports = class Upgrader {
const installed = await this.pm.getInstalledVersion(name)
const wanted = await this.pm.getRemoteVersion(name, range)

if (installed === 'N/A') {
throw new Error('At least one dependency is not installed. Please run npm install or yarn before trying to upgrade')
}

let latest = await this.pm.getRemoteVersion(name)
if (includeNext) {
const next = await this.pm.getRemoteVersion(name, 'next')
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