XCode 4.3 Command Line Tools Package with Invalid Checksum

7 Solutions Collect From Internet About “XCode 4.3 Command Line Tools Package with Invalid Checksum”

Xcode includes a new “Downloads” preference pane to install optional components such as command line tools, and previous iOS Simulators.

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So, I found a way to do this correctly.
The problem is really in one of the European mirrors from Apple.

The workaround is to:
– Install Tor: https://www.torproject.org/
– Choose a Tor node in the USA
– Logging into your Apple Developer account and download the package

It now opens correctly without any checksum warning.

I solved my own problem of downloading/installing Xcode 4.3.1 “Command Line Tools” by getting them directly from the developer’s webpage. The March version yielded a checksum error just like
the download from within Xcode 4.3.1, i.e. Xcode/Preferences/Downloads . But I did have success with the February version of CLT. I don’t know why things were out-of-sync.

I had the same problem when trying to install the Command Line Tools from the Downloads tab in the XCode preferences (also downloading from Europe). I fixed it by clearing the dns cache on my system.

This is the Terminal command to clear the dns cache (OSX Lion):

dscacheutil -flushcache

Restart XCode after running this command, it may not fix the problem with the checksum until you do.

defaults write com.apple.frameworks.diskimages skip-verify -bool true

Just add another mirror for the download site:

Use the following to determine a valid ip:

and add this to /etc/hosts:


Example (ip might already have changed) adcdownload.apple.com.

You can simply click skip while the disk image is verifying. I have installed from a dmg of CLT-4.3 with this problem and built an extensive amount of software with if successfully on my te