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i use the code npm install -g cordova and the error are shown below:

npm ERR! code UNABLE_TO_VERIFY_LEAF_SIGNATURE

npm ERR! errno UNABLE_TO_VERIFY_LEAF_SIGNATURE

npm ERR! request to https://registry.npmjs.org/ionic failed, reason: unable to verify the first certificate

npm ERR! A complete log of this run can be found in:

npm ERR! C:\Users\alip\AppData\Roaming\npm-cache_logs\2019-03-04T04_11_33_400Z-debug.log

i already try to use npm uninstall -g npm and install back using npm install -g npm@2.12.1 but still the same error occur. can anyone help me. I used this to develop mobile apps

Aliff Ahmad
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1 Answers1

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try this:

npm cache clean -- force

and then:

npm install -g cordova
Pika Supports Ukraine
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Candra Kurniawan
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  • Welcome to Stack Overflow! Could you please add some context or more explanation about your answer. Also, read about [How to Answer a Question](https://stackoverflow.com/help/how-to-answer) to learn how to write effective answers. – Teocci May 20 '19 at 02:50