node.js - Heroku找不到Playwright文件

Question

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:

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进入了Heroku dyno，并运行了 npm install playwright。得到了同样的错误。
然后我想，如何将其构建到Docker镜像(node:latest)中，然后将其部署到Heroku？当然，这不会失败。它做了。同样的错误。该图像在本地完美运行。
根据在线解决方案，我还尝试安装了几个Heroku构建包，并专门使用了 Chromium和 Firefox Playwright口味。然后，我尝试了我忘记的其他一千件事(编辑:包括 mxschmitt heroku-playwright-example)。
有人遇到过这个问题吗？

Answer 1

alterjun和MaxSchmitt指向github.com/mxschmitt/heroku-playwright-buildpack，它说buildpack很重要。我以前尝试过，但一定做错了，但现在可以了。