Can't deploy functions with Crashlytics triggers - node.js

Question

I write many functions that trigger by Firebase features and I can deploy them but only functions that trigger by Crashlytics I can't deploy.
exports.sendOnVelocityAlert = functions.crashlytics.issue().onVelocityAlert(event => {
const data = event.data;
const issueId = data.issueId;
const issueTitle = data.issueTitle;
const appName = data.appInfo.appName;
const appPlatform = data.appInfo.appPlatform;
const latestAppVersion = data.appInfo.latestAppVersion;
const crashPercentage = data.velocityAlert.crashPercentage;
const slackMessage = `<!here|here> There is an issue ${issueTitle} (${issueId}) ` + `in ${appName}, version ${latestAppVersion} on ${appPlatform} that is causing ` + `${parseFloat(crashPercentage).toFixed(2)}% of all sessions to crash.`;
return notifySlack(slackMessage)/then(() => {
console.log(`Posted velocity alert ${issueId} successfully to Slack`);
});
});
I always see this error "Cannot read property 'issue' of undefinded" when I deploy.
i deploying functions
i functions: ensuring necessary APIs are enabled...
✔ functions: all necessary APIs are enabled
i functions: preparing functions directory for uploading...
Error: Error occurred while parsing your function triggers.
TypeError: Cannot read property 'issue' of undefined
at Object.<anonymous> (/private/var/folders/y8/tbbq9y5j12jc5rlwcmt5smgm0000gn/T/fbfn_10408f4KU3uXJsLQc/index.js:261:53)
at Module._compile (module.js:635:30)
at Object.Module._extensions..js (module.js:646:10)
at Module.load (module.js:554:32)
at tryModuleLoad (module.js:497:12)
at Function.Module._load (module.js:489:3)
at Module.require (module.js:579:17)
at require (internal/module.js:11:18)
at /usr/local/lib/node_modules/firebase-tools/lib/triggerParser.js:18:11
at Object.<anonymous> (/usr/local/lib/node_modules/firebase-tools/lib/triggerParser.js:32:3)
at Module._compile (module.js:635:30)
at Object.Module._extensions..js (module.js:646:10)
at Module.load (module.js:554:32)
at tryModuleLoad (module.js:497:12)
at Function.Module._load (module.js:489:3)
at Function.Module.runMain (module.js:676:10)
at startup (bootstrap_node.js:187:16)
at bootstrap_node.js:608:3
I use Firebase CLI v3.16.0, node v8.9.3, npm v5.5.1 and version of dependencies in package.json are below.
{
"name": "functions",
"description": "Cloud Functions for Firebase",
"dependencies": {
"#google-cloud/storage": "^1.5.1",
"child-process-promise": "^2.2.1",
"firebase-admin": "^5.6.0",
"firebase-functions": "^0.7.5",
"mkdirp": "^0.5.1",
"mkdirp-promise": "^5.0.1",
"request": "^2.83.0",
"request-promise": "^4.2.2",
"uuid": "^3.1.0"
},
"private": true
}
Any ideas to fix this problem?

Answer 1

The Firebase CLI runs the code you have locally to parse your triggers. Though your package.json has a completely valid dependency, it looks like the version of firebase-functions you have installed is from before firebase.crashlytics was a introduced in October.
Could you try running npm install from your functions directory and see if that fixes the issue?