diff -rupN qt-creator-opensource-src-4.7.0-beta1/src/plugins/cmakeprojectmanager/cmakekitinformation.cpp qt-creator-opensource-src-4.7.0-beta1-new/src/plugins/cmakeprojectmanager/cmakekitinformation.cpp

--- qt-creator-opensource-src-4.7.0-beta1/src/plugins/cmakeprojectmanager/cmakekitinformation.cpp	2018-06-04 06:52:27.000000000 +0200

+++ qt-creator-opensource-src-4.7.0-beta1-new/src/plugins/cmakeprojectmanager/cmakekitinformation.cpp	2018-06-07 10:31:39.057923665 +0200

@@ -322,7 +322,7 @@ QVariant CMakeGeneratorKitInformation::d

     if (it != known.constEnd()) {

         Utils::Environment env = Utils::Environment::systemEnvironment();

         k->addToEnvironment(env);

-        const Utils::FileName ninjaExec = env.searchInPath(QLatin1String("ninja"));

+        const Utils::FileName ninjaExec = env.searchInPath(QLatin1String("ninja-build"));

         if (!ninjaExec.isEmpty())

             return GeneratorInfo({QString("Ninja"), extraGenerator, QString(), QString()}).toVariant();

     }