diff: /../Podfile.lock: No such file or directory 
 diff: /Manifest.lock: No such file or directory 
 error: The sandbox is not in sync with the Podfile.lock.
 Run 'pod install' or update your CocoaPods installation.

ok，某次pod update之后，出现了这个冲突，怎么百度也解决不了。
根据提示重新pod之后，发现3个Errors变成了一个：类似637E0C380E75D243D743ACA3 xxxx Not Found，然后去YourProject.xcodeproj/project.pbxproj里删除掉

637E0C380E75D243D743ACA3 /* Embed Pods Frameworks */ = {
    isa = PBXShellScriptBuildPhase;
    buildActionMask = 2147483648;
    files = (
    );
    inputPaths = (
    );
    name = "Embed Pods Frameworks";
    outputPaths = (
    );
    runOnlyForDeploymentPostprocessing = 0;
    shellPath = /bin/sh;
    shellScript = "\"${SRCROOT}/Pods/Target Support Files/Pods/Pods-frameworks.sh\"\n";
    showEnvVarsInLog = 0;
};

就可以运行了