[英]Google App Engine - Node: Cannot find module 'firebase-admin'
First time deploying a GAE app here, I'm trying to follow this tutorial: https://firebase.googleblog.com/2016/08/sending-notifications-between-android.html (see node code section). 首次在此部署GAE应用,我正在尝试按照本教程进行操作: https : //firebase.googleblog.com/2016/08/sending-notifications-between-android.html (请参阅节点代码部分)。
I ran 我跑了
npm install firebase-admin --save
npm install request --save
on my machine, the package.json is here, but when I use gcloud app deploy
, I get these logs when opening the app on my browser: 在我的机器上,package.json就在这里,但是当我使用
gcloud app deploy
,我在浏览器上打开应用程序时会得到这些日志:
2017-02-10 09:35:02 default[20170210t103151] module.js:471
2017-02-10 09:35:02 default[20170210t103151] throw err;
2017-02-10 09:35:02 default[20170210t103151] ^
2017-02-10 09:35:02 default[20170210t103151]
2017-02-10 09:35:02 default[20170210t103151] Error: Cannot find module 'firebase-admin'
2017-02-10 09:35:02 default[20170210t103151] at Function.Module._resolveFilename (module.js:469:15)
2017-02-10 09:35:02 default[20170210t103151] at Function.Module._load (module.js:417:25)
2017-02-10 09:35:02 default[20170210t103151] at Module.require (module.js:497:17)
2017-02-10 09:35:02 default[20170210t103151] at require (internal/module.js:20:19)
2017-02-10 09:35:02 default[20170210t103151] at Object.<anonymous> (/app/server.js:1:78)
2017-02-10 09:35:02 default[20170210t103151] at Module._compile (module.js:570:32)
2017-02-10 09:35:02 default[20170210t103151] at Object.Module._extensions..js (module.js:579:10)
2017-02-10 09:35:02 default[20170210t103151] at Module.load (module.js:487:32)
2017-02-10 09:35:02 default[20170210t103151] at tryModuleLoad (module.js:446:12)
2017-02-10 09:35:02 default[20170210t103151] at Function.Module._load (module.js:438:3)
2017-02-10 09:35:07 default[20170210t103151] module.js:471
2017-02-10 09:35:07 default[20170210t103151] throw err;
2017-02-10 09:35:07 default[20170210t103151] ^
2017-02-10 09:35:07 default[20170210t103151]
2017-02-10 09:35:07 default[20170210t103151] Error: Cannot find module 'firebase-admin'
2017-02-10 09:35:07 default[20170210t103151] at Function.Module._resolveFilename (module.js:469:15)
2017-02-10 09:35:07 default[20170210t103151] at Function.Module._load (module.js:417:25)
2017-02-10 09:35:07 default[20170210t103151] at Module.require (module.js:497:17)
2017-02-10 09:35:07 default[20170210t103151] at require (internal/module.js:20:19)
2017-02-10 09:35:07 default[20170210t103151] at Object.<anonymous> (/app/server.js:1:78)
2017-02-10 09:35:07 default[20170210t103151] at Module._compile (module.js:570:32)
2017-02-10 09:35:07 default[20170210t103151] at Object.Module._extensions..js (module.js:579:10)
2017-02-10 09:35:07 default[20170210t103151] at Module.load (module.js:487:32)
2017-02-10 09:35:07 default[20170210t103151] at tryModuleLoad (module.js:446:12)
2017-02-10 09:35:07 default[20170210t103151] at Function.Module._load (module.js:438:3)
2017-02-10 09:43:58 default[20170210t104151] module.js:471
2017-02-10 09:43:58 default[20170210t104151] throw err;
2017-02-10 09:43:58 default[20170210t104151] ^
2017-02-10 09:43:58 default[20170210t104151]
2017-02-10 09:43:58 default[20170210t104151] Error: Cannot find module 'serviceAccountKey.json'
2017-02-10 09:43:58 default[20170210t104151] at Function.Module._resolveFilename (module.js:469:15)
2017-02-10 09:43:58 default[20170210t104151] at Function.Module._load (module.js:417:25)
2017-02-10 09:43:58 default[20170210t104151] at Module.require (module.js:497:17)
2017-02-10 09:43:58 default[20170210t104151] at require (internal/module.js:20:19)
2017-02-10 09:43:58 default[20170210t104151] at Object.<anonymous> (/app/server.js:7:22)
2017-02-10 09:43:58 default[20170210t104151] at Module._compile (module.js:570:32)
2017-02-10 09:43:58 default[20170210t104151] at Object.Module._extensions..js (module.js:579:10)
2017-02-10 09:43:58 default[20170210t104151] at Module.load (module.js:487:32)
2017-02-10 09:43:58 default[20170210t104151] at tryModuleLoad (module.js:446:12)
2017-02-10 09:43:58 default[20170210t104151] at Function.Module._load (module.js:438:3)
2017-02-10 09:44:10 default[20170210t104151] module.js:471
2017-02-10 09:44:10 default[20170210t104151] throw err;
2017-02-10 09:44:10 default[20170210t104151] ^
2017-02-10 09:44:10 default[20170210t104151]
2017-02-10 09:44:10 default[20170210t104151] Error: Cannot find module 'serviceAccountKey.json'
2017-02-10 09:44:10 default[20170210t104151] at Function.Module._resolveFilename (module.js:469:15)
2017-02-10 09:44:10 default[20170210t104151] at Function.Module._load (module.js:417:25)
2017-02-10 09:44:10 default[20170210t104151] at Module.require (module.js:497:17)
2017-02-10 09:44:10 default[20170210t104151] at require (internal/module.js:20:19)
2017-02-10 09:44:10 default[20170210t104151] at Object.<anonymous> (/app/server.js:7:22)
2017-02-10 09:44:10 default[20170210t104151] at Module._compile (module.js:570:32)
2017-02-10 09:44:10 default[20170210t104151] at Object.Module._extensions..js (module.js:579:10)
2017-02-10 09:44:10 default[20170210t104151] at Module.load (module.js:487:32)
2017-02-10 09:44:10 default[20170210t104151] at tryModuleLoad (module.js:446:12)
2017-02-10 09:44:10 default[20170210t104151] at Function.Module._load (module.js:438:3)
2017-02-10 16:20:02 default[20170210t124920] Error: Credential implementation provided to initializeApp() via the "credential" property failed to fetch a valid Google OAuth2 access token with the following error: "connect ETIMEDOUT 74.125.202.84:443".
2017-02-10 16:20:02 default[20170210t124920] at /app/node_modules/firebase-admin/lib/firebase-app.js:74:23
2017-02-10 16:20:02 default[20170210t124920] at process._tickCallback (internal/process/next_tick.js:103:7)
How do I fix this ?? 我该如何解决 ??
These issues seem to be caused by a misunderstanding of how require()
paths work. 这些问题似乎是由于对
require()
路径如何工作的误解造成的。 You cannot use an absolute path because something like require("/Users/username/somepath")
obviously won't exist on the remote machine when the app is deployed and the import will fail. 您不能使用绝对路径,因为当部署应用程序并导入失败时,远程计算机上显然不存在
require("/Users/username/somepath")
。 Using require("serviceAccountKey.json")
is going to look in node_modules/serviceAccountKey.json relative to the app directory. 使用
require("serviceAccountKey.json")
将查看相对于app目录的node_modules / serviceAccountKey.json 。
If you want to load serviceAccountKey.json from the app's root directory, you would use require("./serviceAccountKey.json")
. 如果要从应用程序的根目录加载serviceAccountKey.json ,可以使用
require("./serviceAccountKey.json")
。 If it were in a subdirectory called foo under the root you'd use require("./foo/serviceAccountKey.json")
. 如果它位于根目录下名为foo的子目录中,则使用
require("./foo/serviceAccountKey.json")
。 This also applies to loading modules in general such as firebase-admin
. 这也适用于加载模块,例如
firebase-admin
。
The NodeJS Modules documentation explains the require()
mechanism in greater detail. NodeJS模块文档更详细地解释了
require()
机制。
I could make a workaround on this proceeding like this: (passing the serviceAccountkeyFile.json parameters inside app.js code): 我可以像这样对这个过程做一个解决方法:(在app.js代码中传递serviceAccountkeyFile.json参数):
let defaultAppConfig = {
credential: admin.credential.cert({
type: "service_account",
project_id: "txxxxxxxxxx",
private_key_id: "xxxxxxxxxxxxxxxxxxxxxxxxxx",
private_key: "-----BEGIN PRIVATE KEY----------END PRIVATE KEY-----\n",
client_email: "firebaxxxxxxx@xxxxxxx.gserviceaccount.com",
client_id: "11111111111111111",
auth_uri: "https://accounts.google.com/o/oauth2/auth",
token_uri: "https://accounts.google.com/o/oauth2/token",
auth_provider_x509_cert_url: "https://www.googleapis.com/oauth2/v1/certs",
client_x509_cert_url: "https://www.googleapis.com/robot/v1/metadata/x509/jjjjjj.gserviceaccount.com"
}),
databaseURL: 'https://projectxxx.firebaseio.com/'
}
defaultApp = admin.initializeApp(defaultAppConfig);
I had a similar problem running gcloud app deploy
我在运行
gcloud app deploy
遇到了类似的问题
Error: Cannot find module 'webpack-dev-server'
at Function.Module._resolveFilename (module.js:469:15)
I solved the issue moving the given dependency (wepack-dev-server) from devDependencies
to dependencies
in package.json
. 我解决了将给定依赖项(wepack-dev-server)从
devDependencies
到package.json
dependencies
问题。
In case somebody else has the same problem I suggest to have look at your dependencies in package.json
. 如果其他人有同样的问题,我建议你在
package.json
查看你的依赖项。 dependencies
are required to run, devDependencies
only to develop, eg: unit tests, Coffeescript to Javascript transpilation, minification, 运行时需要
dependencies
, devDependencies
只用于开发,例如:单元测试,Coffeescript到Javascript的编译,缩小,
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