前几天vagrant做box add的时候发现加不进去，报以下信息：
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An error occurred while downloading the remote file. The error message, if any, is reproduced below. Please fix this error and try again. |
给vagrant加上debug看看调试信息，这样就知道是什么原因导致的了：
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vagrant box add base xxx.box --debug |
下面是一部分调试信息：
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INFO subprocess: Command in the installer. Specifying DYLD_LIBRARY_PATH... DEBUG subprocess: Selecting on IO DEBUG subprocess: stderr: dyld: Library not loaded: @rpath/libcurl.4.dylib Referenced from: /opt/vagrant/embedded/bin/curl Reason: Incompatible library version: curl requires version 9.0.0 or later, but libcurl.4.dylib provides version 7.0.0 DEBUG subprocess: Waiting for process to exit. Remaining to timeout: 32000 DEBUG subprocess: Exit status: 6 WARN downloader: Downloader exit code: 6 ERROR downloader: Exit code: 6 DEBUG box_add: Deleting temporary box: ERROR warden: Error occurred: An error occurred while downloading the remote file. The error message, if any, is reproduced below. Please fix this error and try again. INFO warden: Beginning recovery process... INFO warden: Recovery complete. INFO environment: Running hook: environment_unload INFO runner: Preparing hooks for middleware sequence... INFO runner: 1 hooks defined. INFO runner: Running action: environment_unload #<Vagrant::Action::Builder:0x00000100ee0420> ERROR vagrant: Vagrant experienced an error! Details: ERROR vagrant: #<Vagrant::Errors::DownloaderError: An error occurred while downloading the remote file. The error message, if any, is reproduced below. Please fix this error and try again. |
里面说
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curl requires version 9.0.0 or later, but libcurl.4.dylib provides version 7.0.0 |
问题应该就在这里了，curl用不了。这个curl用的是vagrant自带的，需要比较高的lib版本（9。0.0），但是osx里的lib老了点（7.0.0）。
解决方法很简单：只需要把vagrant自带的curl删掉或者移走就可以了。
然后再执行一下box add就解决了。
