Postman send statement failure | A server error occurred | no mango primary found

[looperEit]

there is a new issue that have confused me mach time. i try to use Postman send xAPI statement to the Learning locker store. The configurations of client and postman is complete. But it did't work!

logs like:

[looperEit]

This problem is caused by the encoding problem of mongodb and the writing problem of the .env file. The first is the encoding problem of mogoddb. You only need to find the encoding.js file in /usr/local/learninglocker/current/xapi/node_modules/mongodb-connection-string-url/node_modules/whatwg-url/lib in the xapi file and add const to it { TextEncoder, TextDecoder } = require("util"); code.
Then change the mongodb link in the .env file to MONGO_URL=mongodb://localhost:27017/learninglocker_v2
Make sure your node -v is 10, and xapi needs to be 6.0, not 7.0. Because the node used in 7.0 is version 16+.

By the way. It is best to use Ubuntu18 for installation. For Ubuntu20+, you need to modify "@google-cloud/pubsub": "^0.16.1" inpackage.jsin webapp to 0.32.1.