gulp browser fail

[Lbt777]

node 12.13.1

[14:28:59] Using gulpfile ~\Desktop\bitcore-lib\gulpfile.js [14:28:59] Starting 'browser'... [14:28:59] Starting ''... '.' Is not an internal or external command, nor is it a runnable program Or batch file。 [14:28:59] '' errored after 36 ms [14:28:59] Error in plugin "gulp-shell" Message: Command ./node_modules/bitcore-build/node_modules/.bin/browserify --require ./index.js:bitcore-lib -o bitcore-lib.js failed with exit code 1 [14:28:59] 'browser' errored after 43 ms