how to fix this error??

[vickyvenkatr]

node:events:491
throw er; // Unhandled 'error' event
^

Error: spawn npm ENOENT
at ChildProcess._handle.onexit (node:internal/child_process:283:19)
at onErrorNT (node:internal/child_process:476:16)
at process.processTicksAndRejections (node:internal/process/task_queues:82:21)
Emitted 'error' event on ChildProcess instance at:
at ChildProcess._handle.onexit (node:internal/child_process:289:12)
at onErrorNT (node:internal/child_process:476:16)
at process.processTicksAndRejections (node:internal/process/task_queues:82:21) {
errno: -4058,
code: 'ENOENT',
syscall: 'spawn npm',
path: 'npm',
spawnargs: [ 'run', 'build' ]
}