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yii2 composer installation failed

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Release： 2016-08-18 09:15:32
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Composer installed yii2.0 successfully, but when using composer install to update vendor, an error occurred

yii2 composer installation failed

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Composer installed yii2.0 successfully, but when using composer install to update vendor, an error occurred

yii2 composer installation failed

According to your screenshot, the error is very clear, the mbstring extension is missing, just install it

As shown in the picture, it says that your PHP does not have the mbstring extension enabled.

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composer php yii2
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