安装json（1.8.1）时发生错误，Bundler无法继续 - Rails

Question

An error occurred while installing json (1.8.1), and Bundler cannot continue. Make sure that gem install json -v '1.8.1' succeeds before bundling. xcrun: error: invalid active developer path (/Library/Developer/CommandLineTools), missing xcrun at: /Library/Developer/CommandLineTools/usr/bin/xcrun

make failed, exit code 1

I know this has already been posted but i have tried bundle update, bundle install and putting the gem file in my gem file and bundle install but nothing works from the other answers.

ideas?

Answer 1

运行“捆绑更新”对我有用。

Answer 2

You can try bundle update && bundle install .
More on this here .

Answer 3

更安全的方法可以是：
bundle update json
bundle install

Answer 4

Run the following in terminal:

xcode-select --install

Source

Answer 5

Remove your old Gemfile.lock file and run bundle again. A newer version of json should be installed.

Answer 6

With Ruby 2.4.4, use Backup version 5.0.0.beta.1.

gem install backup -v5.0.0.beta.1

This solved the issue for me