Following is the complete error
15:36:09.539 Started restoring cached go cache
15:36:09.593 Finished restoring cached go cache
15:36:09.791 go version go1.14.4 linux/amd64
15:36:09.807 go version go1.14.4 linux/amd64
15:36:09.810 Installing missing commands
15:36:09.810 Verify run directory
15:36:09.811 Executing user command: ng build
15:36:09.884 Node.js version v12.18.0 detected.
15:36:09.884 The Angular CLI requires a minimum Node.js version of either v14.15, or v16.10.
15:36:09.885
15:36:09.885 Please update your Node.js version or visit https://nodejs.org/ for additional instructions.
15:36:09.885
15:36:09.896 Failed: build command exited with code: 3
15:36:10.740 Failed: an internal error occurred