GitHub Probot : ERROR probot : signature does not match event payload and secret - github

Question

I am trying to build a GitHub app using Probot Framework.
Here's the content of file index.js:
module.exports = (robot) => {
robot.log('Yay, the app was loaded!');
robot.on('*', async context => {
robot.log('Some event occured!');
});
}
However, when I am run this app, after installing it in a repository, I received this error:
03:38:34.831Z ERROR probot: signature does not match event payload and secret
Error: signature does not match event payload and secret
at verifyAndReceive (/mnt/e/GSoC/test/test/node_modules/#octokit/webhooks/middleware/verify-and-receive.js:9:19)
at IncomingMessage.request.on (/mnt/e/GSoC/test/test/node_modules/#octokit/webhooks/middleware/middleware.js:53:5)
at emitNone (events.js:106:13)
at IncomingMessage.emit (events.js:208:7)
at endReadableNT (_stream_readable.js:1064:12)
at _combinedTickCallback (internal/process/next_tick.js:138:11)
at process._tickDomainCallback (internal/process/next_tick.js:218:9)
What is the problem behind this error? How can I fix this problem?

Answer 1

It says, signature does not match event payload and secret.
The possible reason behind this is that the WEBHOOK_SECRET in .env file of the repository doesn't match with Webhook secret (optional) in
https://github.com/settings/apps/your-app-name.
Correctly configuring webhook secret will fix this error.