数据库迁移 - TypeError: 无法读取未定义的属性 "slice"。

Question

试图将数据库表迁移到heroku，并得到以下错误。

heroku pg:credentials:url

我可以得到连接的URL。但当我尝试运行脚本

"env SSL=true DATABASE_URL=postgres://azgtqialharhur:[e-mail]:5432/df6c2t2q7bb1s4 npm run migrate"

我得到以下错误。

> [email protected] migrate:production C:\Users\User\Desktop\project\fit-tracker-database
> env SSL=true DATABASE_URL=postgres://azgtqialharhur:[e-mail]:5432/df6c2t2q7bb1s4 npm run migrate


> [email protected] migrate C:\Users\User\Desktop\project\fit-tracker-database
> postgrator --config postgrator-config.js

Password: 
C:\Users\User\Desktop\project\fit-tracker-database\node_modules\postgrator-cli\postgrator-cli.js:187
        rl.history = rl.history.slice(1);
                                ^

TypeError: Cannot read property 'slice' of undefined
    at rl.question (C:\Users\User\Desktop\project\fit-tracker-database\node_modules\postgrator-cli\postgrator-cli.js:187:33)
    at Interface._onLine (readline.js:288:5)
    at Interface._normalWrite (readline.js:433:12)
    at Socket.ondata (readline.js:149:10)
    at Socket.emit (events.js:189:13)
    at addChunk (_stream_readable.js:284:12)
    at readableAddChunk (_stream_readable.js:265:11)
    at Socket.Readable.push (_stream_readable.js:220:10)
    at Pipe.onStreamRead [as onread] (internal/stream_base_commons.js:94:17)
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! [email protected] migrate: `postgrator --config postgrator-config.js`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the [email protected] migrate script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR!     C:\Users\User\AppData\Roaming\npm-cache\_logs\2019-10-12T04_14_43_701Z-debug.log
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! [email protected] migrate:production: `env SSL=true DATABASE_URL=postgres://azgtqialharhur:[e-mail]:5432/df6c2t2q7bb1s4 npm run migrate`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the [email protected] migrate:production script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR!     C:\Users\User\AppData\Roaming\npm-cache\_logs\2019-10-12T04_14_43_752Z-debug.log

任何帮助将被感激。

Answer 1

我在不同的项目中看到过这个错误。我看到这个问题是通过安装早期版本的 postgrator-cli 包。

我看到的另一个解决方案是使用 纱线 而不是npm。