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我的 TypeScript NodeJS (>=12.0.0) 应用使用Playwright (^1.4.2)。它在本地运行良好。但是，它在 Heroku 上失败了：

browserType.launch: Failed to launch chromium because executable doesn't exist at /app/.cache/ms-playwright/chromium-799411/chrome-linux/chrome

Try re-installing playwright with "npm install playwright"

Note: use DEBUG=pw:api environment variable and rerun to capture Playwright logs.

at BrowserType._wrapApiCall (/app/node_modules/playwright/lib/client/channelOwner.js:78:15)

at BrowserType.launch (/app/node_modules/playwright/lib/client/browserType.js:49:21)

at Object.exports.browserTest (/app/utils.js:34:57)

at Object.<anonymous> (/app/index.js:13:9)

at Module._compile (internal/modules/cjs/loader.js:1076:30)

at Object.Module._extensions..js (internal/modules/cjs/loader.js:1097:10)

at Module.load (internal/modules/cjs/loader.js:941:32)

at Function.Module._load (internal/modules/cjs/loader.js:782:14)

at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:72:12)

因此，我通过 SSH 连接到 Heroku dyno 并运行npm install playwright. 得到同样的错误。

然后我想，把它构建成一个 Docker 镜像（node:latest）然后部署到 Heroku 怎么样？肯定不会失败的。它做了。同样的错误。该图像在本地完美运行。

按照在线解决方案，我还尝试安装几个 Heroku buildpack，并专门使用Chromium和Firefox Playwright 风格。然后我尝试了一千零一件我忘记的事情（编辑：包括mxschmitt heroku-playwright-example）。

有人遇到过这个问题吗？

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1 回答 1

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alterjun 和 MaxSchmitt 指向github.com/mxschmitt/heroku-playwright-buildpack，它说 buildpacks 很重要。我以前尝试过，但肯定做错了什么，但现在它正在工作。

于 2020-10-05T16:31:58.133 回答