× Component tns-core-modules is not installed. × C

问题:

What am I missing, I have completed all the steps asked in the installation guide of nativescript running tns doctor gives me the following output...

C:\abc\xyz>tns doctor
√ Getting environment information

√ Your ANDROID_HOME environment variable is set and points to correct directory.
√ Your adb from the Android SDK is correctly installed.
√ The Android SDK is installed.
√ A compatible Android SDK for compilation is found.
√ Javac is installed and is configured properly.
√ The Java Development Kit (JDK) is installed and is configured properly.
√ Local builds for iOS can be executed only on a macOS system. To build for iOS on a different operating system, you can use the NativeScript cloud infrastructure.
No issues were detected.
√ Getting NativeScript components versions information...
√ Component nativescript has 4.0.2 version and is up to date.
× Component tns-core-modules is not installed.
× Component tns-android is not installed.
× Component tns-ios is not installed.

回答1:

Try this - tns platform add android

回答2:

Did you try to checked your package.json? Or try to execute npm i? or tns install?

回答3:

I think two points about it:

1. Seems like you don't followed the NativeScript quick setup to installed it because it could be installed all together. https://docs.nativescript.org/start/quick-setup

2. You should check inside your package.json if this modules exists:

× Component tns-core-modules is not installed. × Component tns-android is not installed. × Component tns-ios is not installed.

You also check doing this: npm ls <module-name>, where <module-name> is the module to check it.

Let me know if it help you.