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1. Open the URL http://www.yiiframework.com/download/ and follow the instructions to perform the upgrade:
Open the URL http://www.yiiframework.com/download/ and follow the instructions to perform the upgrade
2. Run the command: php composer.phar require yiisoft/yii2 2.0.6, which throws the following error:
[UnexpectedValueException]
Could not parse version constraint <=2.*: Invalid version string “2.*”
Run the upgrade command, which throws the error: Could not parse version constraint <=2.*: Invalid version string “2.*”
3. Run the following commands in sequence: composer self-update, composer global update;
Run the following commands in sequence: composer self-update, composer global update;
4. Run the command again: composer global update;
Run the command again: composer global update;
5. Run the command again: php composer.phar require yiisoft/yii2 2.0.6, and the upgrade succeeds;
Run the command again: php composer.phar require yiisoft/yii2 2.0.6, and the upgrade succeeds
6. Screenshot of the log records in the SVN repository:
Screenshot of the log records in the SVN repository
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我是一名拥有 15 年以上开发经验的技术从业者，自 2013 年起持续运营个人技术博客，记录工作与个人项目中遇到的真实问题，以及解决问题过程中的探索、实践和思考。
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