Hi, When I use Xcode to build, It will generate xcactivitylog. But When I use xcodebuild, For example xcodebuild -workspace xx.xcworkspace -scheme xx -sdk iphoneos -showBuildTimingSummary -resultBundlePath ./a/a -derivedDataPath ./a clean build it will generate two xcactivitylog, One is a clean job log, and one is a build job log. But the build job log is not a valid gzip. I have to wait one day, but nothing changes. So, Is it possible to crash in generate xcactivitylog？ If I use hmap to replace the header search path, it works fine. So I think it may be argument too long lead to generating log failed. One more thing, it only failed in a large Xcode project.