Ionic serve is not working for Ionic 4

Question

I upgraded ionic using npm install -g [email protected]

I started a new project with ionic start ionic-4-project blank --type=angular

I attempted to serve the project with ionic serve

This is the error message in the console.

> ng run app:serve --host=0.0.0.0 --port=8100
[ng] Could not find API compiler-cli, function VERSION
[ng] Error: Could not find API compiler-cli, function VE
RSION
[ng]     at _error (C:\Users\Me\AppData\Roaming\npm\node
_modules\@angular-devkit\build-angular\node_modules\@ngt
ools\webpack\src\ngtools_api.js:8:11)
[ng]     at getApiMember (C:\Users\Me\AppData\Roaming\np
m\node_modules\@angular-devkit\build-angular\node_module
s\@ngtools\webpack\src\ngtools_api.js:11:32)
[ng]     at Object.<anonymous> (C:\Users\Me\AppData\Roam
ing\npm\node_modules\@angular-devkit\build-angular\node_
modules\@ngtools\webpack\src\ngtools_api.js:50:19)
[ng]     at Module._compile (module.js:652:30)
[ng]     at Object.Module._extensions..js (module.js:663
:10)

[ng]     at Module.load (module.js:565:32)
[ng]     at tryModuleLoad (module.js:505:12)
[ng]     at Function.Module._load (module.js:497:3)
[ng]     at Module.require (module.js:596:17)
[ng]     at require (internal/module.js:11:18)
[ng]     at Object.<anonymous> (C:\Users\Me\AppData\Roam
ing\npm\node_modules\@angular-devkit\build-angular\node_
modules\@ngtools\webpack\src\angular_compiler_plugin.js:
28:23)
[ng]     at Module._compile (module.js:652:30)
[ng]     at Object.Module._extensions..js (module.js:663
:10)
[ng]     at Module.load (module.js:565:32)
[ng]     at tryModuleLoad (module.js:505:12)
[ng]     at Function.Module._load (module.js:497:3)

[ERROR] A utility CLI has unexpectedly closed (exit code
 1).

        The Ionic CLI will exit. Please check any output
 above for error
        details.
net.js:704
    throw new TypeError(

    ^

TypeError: Invalid data, chunk must be a string or buffer, not object
    at WriteStream.Socket.write (net.js:704:11)
    at process.<anonymous> (C:\Users\Me\AppData\Roaming\npm\node_modules\ionic\bin\ionic:9:63)
    at emitTwo (events.js:126:13)
    at process.emit (events.js:214:7)
    at emitPendingUnhandledRejections (internal/process/promises.js:108:22)
    at process._tickCallback (internal/process/next_tick.js:189:7)
PS C:\Users\Me\Desktop\WebApps\fo\ionic-4-pd>

Please let me know what other information you might need. Thank you.

Im on Widows 10 Node version: 8.11.3 Npm version: 6.4.0

Answer 1

npm config set -g production false

I then started a new project and everything worked fine.

Answer 2

Delete node_modules. Then clear npm cache using 'npm cache clean --verify'. Then do npm install.