diff --git a/.externalToolBuilders/automaticBuild.launch b/.externalToolBuilders/automaticBuild.launch
index e62321e0e9d..83c0e8b1ffd 100644
--- a/.externalToolBuilders/automaticBuild.launch
+++ b/.externalToolBuilders/automaticBuild.launch
@@ -1,16 +1,9 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<launchConfiguration type="org.eclipse.ant.AntBuilderLaunchConfigurationType">
-<stringAttribute key="org.eclipse.ant.ui.ATTR_ANT_AFTER_CLEAN_TARGETS" value="build,"/>
-<stringAttribute key="org.eclipse.ant.ui.ATTR_ANT_AUTO_TARGETS" value="build,"/>
-<stringAttribute key="org.eclipse.ant.ui.ATTR_ANT_MANUAL_TARGETS" value="build,"/>
-<booleanAttribute key="org.eclipse.ant.ui.ATTR_TARGETS_UPDATED" value="true"/>
-<booleanAttribute key="org.eclipse.ant.ui.DEFAULT_VM_INSTALL" value="false"/>
+<launchConfiguration type="org.eclipse.ui.externaltools.ProgramBuilderLaunchConfigurationType">
 <booleanAttribute key="org.eclipse.debug.ui.ATTR_LAUNCH_IN_BACKGROUND" value="false"/>
-<stringAttribute key="org.eclipse.jdt.launching.CLASSPATH_PROVIDER" value="org.eclipse.ant.ui.AntClasspathProvider"/>
-<booleanAttribute key="org.eclipse.jdt.launching.DEFAULT_CLASSPATH" value="true"/>
-<stringAttribute key="org.eclipse.jdt.launching.PROJECT_ATTR" value="Cesium"/>
-<booleanAttribute key="org.eclipse.ui.externaltools.ATTR_BUILDER_ENABLED" value="true"/>
-<stringAttribute key="org.eclipse.ui.externaltools.ATTR_LOCATION" value="${workspace_loc:/Cesium/build.xml}"/>
+<stringAttribute key="org.eclipse.ui.externaltools.ATTR_LOCATION" value="${system_path:node}"/>
 <stringAttribute key="org.eclipse.ui.externaltools.ATTR_RUN_BUILD_KINDS" value="full,incremental,auto,"/>
+<stringAttribute key="org.eclipse.ui.externaltools.ATTR_TOOL_ARGUMENTS" value="./node_modules/gulp/bin/gulp.js build"/>
 <booleanAttribute key="org.eclipse.ui.externaltools.ATTR_TRIGGERS_CONFIGURED" value="true"/>
+<stringAttribute key="org.eclipse.ui.externaltools.ATTR_WORKING_DIRECTORY" value="${workspace_loc:/Cesium}"/>
 </launchConfiguration>
diff --git a/launches/build.launch b/launches/build.launch
index 9077e9b71ce..1e1b0cef8f5 100644
--- a/launches/build.launch
+++ b/launches/build.launch
@@ -1,19 +1,10 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<launchConfiguration type="org.eclipse.ant.AntLaunchConfigurationType">
-<booleanAttribute key="org.eclipse.ant.ui.DEFAULT_VM_INSTALL" value="false"/>
-<listAttribute key="org.eclipse.debug.core.MAPPED_RESOURCE_PATHS">
-<listEntry value="/Cesium/build.xml"/>
-</listAttribute>
-<listAttribute key="org.eclipse.debug.core.MAPPED_RESOURCE_TYPES">
-<listEntry value="1"/>
-</listAttribute>
-<listAttribute key="org.eclipse.debug.ui.favoriteGroups">
-<listEntry value="org.eclipse.ui.externaltools.launchGroup"/>
-</listAttribute>
-<stringAttribute key="org.eclipse.jdt.launching.CLASSPATH_PROVIDER" value="org.eclipse.ant.ui.AntClasspathProvider"/>
-<stringAttribute key="org.eclipse.jdt.launching.PROJECT_ATTR" value="Cesium"/>
-<stringAttribute key="org.eclipse.jdt.launching.SOURCE_PATH_PROVIDER" value="org.eclipse.ant.ui.AntClasspathProvider"/>
-<stringAttribute key="org.eclipse.ui.externaltools.ATTR_ANT_TARGETS" value="build,"/>
-<stringAttribute key="org.eclipse.ui.externaltools.ATTR_LOCATION" value="${workspace_loc:/Cesium/build.xml}"/>
-<stringAttribute key="process_factory_id" value="org.eclipse.ant.ui.remoteAntProcessFactory"/>
+<launchConfiguration type="org.eclipse.ui.externaltools.ProgramBuilderLaunchConfigurationType">
+<booleanAttribute key="org.eclipse.debug.ui.ATTR_LAUNCH_IN_BACKGROUND" value="false"/>
+<booleanAttribute key="org.eclipse.ui.externaltools.ATTR_BUILDER_ENABLED" value="true"/>
+<stringAttribute key="org.eclipse.ui.externaltools.ATTR_LOCATION" value="${system_path:node}"/>
+<stringAttribute key="org.eclipse.ui.externaltools.ATTR_RUN_BUILD_KINDS" value="full,incremental,auto,"/>
+<stringAttribute key="org.eclipse.ui.externaltools.ATTR_TOOL_ARGUMENTS" value="./node_modules/gulp/bin/gulp.js build"/>
+<booleanAttribute key="org.eclipse.ui.externaltools.ATTR_TRIGGERS_CONFIGURED" value="true"/>
+<stringAttribute key="org.eclipse.ui.externaltools.ATTR_WORKING_DIRECTORY" value="${workspace_loc:/Cesium}"/>
 </launchConfiguration>
diff --git a/launches/buildApps.launch b/launches/buildApps.launch
index 7511b418114..7d2da3bb556 100644
--- a/launches/buildApps.launch
+++ b/launches/buildApps.launch
@@ -1,19 +1,10 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<launchConfiguration type="org.eclipse.ant.AntLaunchConfigurationType">
-<booleanAttribute key="org.eclipse.ant.ui.DEFAULT_VM_INSTALL" value="false"/>
-<listAttribute key="org.eclipse.debug.core.MAPPED_RESOURCE_PATHS">
-<listEntry value="/Cesium/build.xml"/>
-</listAttribute>
-<listAttribute key="org.eclipse.debug.core.MAPPED_RESOURCE_TYPES">
-<listEntry value="1"/>
-</listAttribute>
+<launchConfiguration type="org.eclipse.ui.externaltools.ProgramLaunchConfigurationType">
 <listAttribute key="org.eclipse.debug.ui.favoriteGroups">
 <listEntry value="org.eclipse.ui.externaltools.launchGroup"/>
 </listAttribute>
-<stringAttribute key="org.eclipse.jdt.launching.CLASSPATH_PROVIDER" value="org.eclipse.ant.ui.AntClasspathProvider"/>
-<stringAttribute key="org.eclipse.jdt.launching.PROJECT_ATTR" value="Cesium"/>
-<stringAttribute key="org.eclipse.jdt.launching.SOURCE_PATH_PROVIDER" value="org.eclipse.ant.ui.AntClasspathProvider"/>
-<stringAttribute key="org.eclipse.ui.externaltools.ATTR_ANT_TARGETS" value="buildApps,"/>
-<stringAttribute key="org.eclipse.ui.externaltools.ATTR_LOCATION" value="${workspace_loc:/Cesium/build.xml}"/>
-<stringAttribute key="process_factory_id" value="org.eclipse.ant.ui.remoteAntProcessFactory"/>
+<stringAttribute key="org.eclipse.ui.externaltools.ATTR_LAUNCH_CONFIGURATION_BUILD_SCOPE" value="${none}"/>
+<stringAttribute key="org.eclipse.ui.externaltools.ATTR_LOCATION" value="${system_path:node}"/>
+<stringAttribute key="org.eclipse.ui.externaltools.ATTR_TOOL_ARGUMENTS" value="./node_modules/gulp/bin/gulp.js buildApps"/>
+<stringAttribute key="org.eclipse.ui.externaltools.ATTR_WORKING_DIRECTORY" value="${workspace_loc:/Cesium}"/>
 </launchConfiguration>
diff --git a/launches/clean.launch b/launches/clean.launch
index 4455a37b951..56a6d8ac6b1 100644
--- a/launches/clean.launch
+++ b/launches/clean.launch
@@ -1,19 +1,10 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<launchConfiguration type="org.eclipse.ant.AntLaunchConfigurationType">
-<booleanAttribute key="org.eclipse.ant.ui.DEFAULT_VM_INSTALL" value="false"/>
-<listAttribute key="org.eclipse.debug.core.MAPPED_RESOURCE_PATHS">
-<listEntry value="/Cesium/build.xml"/>
-</listAttribute>
-<listAttribute key="org.eclipse.debug.core.MAPPED_RESOURCE_TYPES">
-<listEntry value="1"/>
-</listAttribute>
+<launchConfiguration type="org.eclipse.ui.externaltools.ProgramLaunchConfigurationType">
 <listAttribute key="org.eclipse.debug.ui.favoriteGroups">
 <listEntry value="org.eclipse.ui.externaltools.launchGroup"/>
 </listAttribute>
-<stringAttribute key="org.eclipse.jdt.launching.CLASSPATH_PROVIDER" value="org.eclipse.ant.ui.AntClasspathProvider"/>
-<stringAttribute key="org.eclipse.jdt.launching.PROJECT_ATTR" value="Cesium"/>
-<stringAttribute key="org.eclipse.jdt.launching.SOURCE_PATH_PROVIDER" value="org.eclipse.ant.ui.AntClasspathProvider"/>
-<stringAttribute key="org.eclipse.ui.externaltools.ATTR_ANT_TARGETS" value="clean,"/>
-<stringAttribute key="org.eclipse.ui.externaltools.ATTR_LOCATION" value="${workspace_loc:/Cesium/build.xml}"/>
-<stringAttribute key="process_factory_id" value="org.eclipse.ant.ui.remoteAntProcessFactory"/>
+<stringAttribute key="org.eclipse.ui.externaltools.ATTR_LAUNCH_CONFIGURATION_BUILD_SCOPE" value="${none}"/>
+<stringAttribute key="org.eclipse.ui.externaltools.ATTR_LOCATION" value="${system_path:node}"/>
+<stringAttribute key="org.eclipse.ui.externaltools.ATTR_TOOL_ARGUMENTS" value="./node_modules/gulp/bin/gulp.js clean"/>
+<stringAttribute key="org.eclipse.ui.externaltools.ATTR_WORKING_DIRECTORY" value="${workspace_loc:/Cesium}"/>
 </launchConfiguration>
diff --git a/launches/combine.launch b/launches/combine.launch
index 27fa6d679ab..ba47fec26fd 100644
--- a/launches/combine.launch
+++ b/launches/combine.launch
@@ -1,19 +1,10 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<launchConfiguration type="org.eclipse.ant.AntLaunchConfigurationType">
-<booleanAttribute key="org.eclipse.ant.ui.DEFAULT_VM_INSTALL" value="false"/>
-<listAttribute key="org.eclipse.debug.core.MAPPED_RESOURCE_PATHS">
-<listEntry value="/Cesium/build.xml"/>
-</listAttribute>
-<listAttribute key="org.eclipse.debug.core.MAPPED_RESOURCE_TYPES">
-<listEntry value="1"/>
-</listAttribute>
+<launchConfiguration type="org.eclipse.ui.externaltools.ProgramLaunchConfigurationType">
 <listAttribute key="org.eclipse.debug.ui.favoriteGroups">
 <listEntry value="org.eclipse.ui.externaltools.launchGroup"/>
 </listAttribute>
-<stringAttribute key="org.eclipse.jdt.launching.CLASSPATH_PROVIDER" value="org.eclipse.ant.ui.AntClasspathProvider"/>
-<stringAttribute key="org.eclipse.jdt.launching.PROJECT_ATTR" value="Cesium"/>
-<stringAttribute key="org.eclipse.jdt.launching.SOURCE_PATH_PROVIDER" value="org.eclipse.ant.ui.AntClasspathProvider"/>
-<stringAttribute key="org.eclipse.ui.externaltools.ATTR_ANT_TARGETS" value="combine,"/>
-<stringAttribute key="org.eclipse.ui.externaltools.ATTR_LOCATION" value="${workspace_loc:/Cesium/build.xml}"/>
-<stringAttribute key="process_factory_id" value="org.eclipse.ant.ui.remoteAntProcessFactory"/>
+<stringAttribute key="org.eclipse.ui.externaltools.ATTR_LAUNCH_CONFIGURATION_BUILD_SCOPE" value="${none}"/>
+<stringAttribute key="org.eclipse.ui.externaltools.ATTR_LOCATION" value="${system_path:node}"/>
+<stringAttribute key="org.eclipse.ui.externaltools.ATTR_TOOL_ARGUMENTS" value="./node_modules/gulp/bin/gulp.js combine"/>
+<stringAttribute key="org.eclipse.ui.externaltools.ATTR_WORKING_DIRECTORY" value="${workspace_loc:/Cesium}"/>
 </launchConfiguration>
diff --git a/launches/generateDocumentation.launch b/launches/generateDocumentation.launch
index 3190168e7e8..ba6fa9b406c 100644
--- a/launches/generateDocumentation.launch
+++ b/launches/generateDocumentation.launch
@@ -1,19 +1,10 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<launchConfiguration type="org.eclipse.ant.AntLaunchConfigurationType">
-<booleanAttribute key="org.eclipse.ant.ui.DEFAULT_VM_INSTALL" value="false"/>
-<listAttribute key="org.eclipse.debug.core.MAPPED_RESOURCE_PATHS">
-<listEntry value="/Cesium/build.xml"/>
-</listAttribute>
-<listAttribute key="org.eclipse.debug.core.MAPPED_RESOURCE_TYPES">
-<listEntry value="1"/>
-</listAttribute>
+<launchConfiguration type="org.eclipse.ui.externaltools.ProgramLaunchConfigurationType">
 <listAttribute key="org.eclipse.debug.ui.favoriteGroups">
 <listEntry value="org.eclipse.ui.externaltools.launchGroup"/>
 </listAttribute>
-<stringAttribute key="org.eclipse.jdt.launching.CLASSPATH_PROVIDER" value="org.eclipse.ant.ui.AntClasspathProvider"/>
-<stringAttribute key="org.eclipse.jdt.launching.PROJECT_ATTR" value="Cesium"/>
-<stringAttribute key="org.eclipse.jdt.launching.SOURCE_PATH_PROVIDER" value="org.eclipse.ant.ui.AntClasspathProvider"/>
-<stringAttribute key="org.eclipse.ui.externaltools.ATTR_ANT_TARGETS" value="generateDocumentation,"/>
-<stringAttribute key="org.eclipse.ui.externaltools.ATTR_LOCATION" value="${workspace_loc:/Cesium/build.xml}"/>
-<stringAttribute key="process_factory_id" value="org.eclipse.ant.ui.remoteAntProcessFactory"/>
+<stringAttribute key="org.eclipse.ui.externaltools.ATTR_LAUNCH_CONFIGURATION_BUILD_SCOPE" value="${none}"/>
+<stringAttribute key="org.eclipse.ui.externaltools.ATTR_LOCATION" value="${system_path:node}"/>
+<stringAttribute key="org.eclipse.ui.externaltools.ATTR_TOOL_ARGUMENTS" value="./node_modules/gulp/bin/gulp.js generateDocumentation"/>
+<stringAttribute key="org.eclipse.ui.externaltools.ATTR_WORKING_DIRECTORY" value="${workspace_loc:/Cesium}"/>
 </launchConfiguration>
diff --git a/launches/instrumentForCoverage.launch b/launches/instrumentForCoverage.launch
index febd332c25f..76ed4fb1be6 100644
--- a/launches/instrumentForCoverage.launch
+++ b/launches/instrumentForCoverage.launch
@@ -1,19 +1,10 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<launchConfiguration type="org.eclipse.ant.AntLaunchConfigurationType">
-<booleanAttribute key="org.eclipse.ant.ui.DEFAULT_VM_INSTALL" value="false"/>
-<listAttribute key="org.eclipse.debug.core.MAPPED_RESOURCE_PATHS">
-<listEntry value="/Cesium/build.xml"/>
-</listAttribute>
-<listAttribute key="org.eclipse.debug.core.MAPPED_RESOURCE_TYPES">
-<listEntry value="1"/>
-</listAttribute>
+<launchConfiguration type="org.eclipse.ui.externaltools.ProgramLaunchConfigurationType">
 <listAttribute key="org.eclipse.debug.ui.favoriteGroups">
 <listEntry value="org.eclipse.ui.externaltools.launchGroup"/>
 </listAttribute>
-<stringAttribute key="org.eclipse.jdt.launching.CLASSPATH_PROVIDER" value="org.eclipse.ant.ui.AntClasspathProvider"/>
-<stringAttribute key="org.eclipse.jdt.launching.PROJECT_ATTR" value="Cesium"/>
-<stringAttribute key="org.eclipse.jdt.launching.SOURCE_PATH_PROVIDER" value="org.eclipse.ant.ui.AntClasspathProvider"/>
-<stringAttribute key="org.eclipse.ui.externaltools.ATTR_ANT_TARGETS" value="instrumentForCoverage,"/>
-<stringAttribute key="org.eclipse.ui.externaltools.ATTR_LOCATION" value="${workspace_loc:/Cesium/build.xml}"/>
-<stringAttribute key="process_factory_id" value="org.eclipse.ant.ui.remoteAntProcessFactory"/>
+<stringAttribute key="org.eclipse.ui.externaltools.ATTR_LAUNCH_CONFIGURATION_BUILD_SCOPE" value="${none}"/>
+<stringAttribute key="org.eclipse.ui.externaltools.ATTR_LOCATION" value="${system_path:node}"/>
+<stringAttribute key="org.eclipse.ui.externaltools.ATTR_TOOL_ARGUMENTS" value="./node_modules/gulp/bin/gulp.js instrumentForCoverage"/>
+<stringAttribute key="org.eclipse.ui.externaltools.ATTR_WORKING_DIRECTORY" value="${workspace_loc:/Cesium}"/>
 </launchConfiguration>
diff --git a/launches/makeZipFile.launch b/launches/makeZipFile.launch
index e4237738836..843477cde9b 100644
--- a/launches/makeZipFile.launch
+++ b/launches/makeZipFile.launch
@@ -1,19 +1,10 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<launchConfiguration type="org.eclipse.ant.AntLaunchConfigurationType">
-<booleanAttribute key="org.eclipse.ant.ui.DEFAULT_VM_INSTALL" value="false"/>
-<listAttribute key="org.eclipse.debug.core.MAPPED_RESOURCE_PATHS">
-<listEntry value="/Cesium/build.xml"/>
-</listAttribute>
-<listAttribute key="org.eclipse.debug.core.MAPPED_RESOURCE_TYPES">
-<listEntry value="1"/>
-</listAttribute>
+<launchConfiguration type="org.eclipse.ui.externaltools.ProgramLaunchConfigurationType">
 <listAttribute key="org.eclipse.debug.ui.favoriteGroups">
 <listEntry value="org.eclipse.ui.externaltools.launchGroup"/>
 </listAttribute>
-<stringAttribute key="org.eclipse.jdt.launching.CLASSPATH_PROVIDER" value="org.eclipse.ant.ui.AntClasspathProvider"/>
-<stringAttribute key="org.eclipse.jdt.launching.PROJECT_ATTR" value="Cesium"/>
-<stringAttribute key="org.eclipse.jdt.launching.SOURCE_PATH_PROVIDER" value="org.eclipse.ant.ui.AntClasspathProvider"/>
-<stringAttribute key="org.eclipse.ui.externaltools.ATTR_ANT_TARGETS" value="makeZipFile,"/>
-<stringAttribute key="org.eclipse.ui.externaltools.ATTR_LOCATION" value="${workspace_loc:/Cesium/build.xml}"/>
-<stringAttribute key="process_factory_id" value="org.eclipse.ant.ui.remoteAntProcessFactory"/>
+<stringAttribute key="org.eclipse.ui.externaltools.ATTR_LAUNCH_CONFIGURATION_BUILD_SCOPE" value="${none}"/>
+<stringAttribute key="org.eclipse.ui.externaltools.ATTR_LOCATION" value="${system_path:node}"/>
+<stringAttribute key="org.eclipse.ui.externaltools.ATTR_TOOL_ARGUMENTS" value="./node_modules/gulp/bin/gulp.js makeZipFile"/>
+<stringAttribute key="org.eclipse.ui.externaltools.ATTR_WORKING_DIRECTORY" value="${workspace_loc:/Cesium}"/>
 </launchConfiguration>
diff --git a/launches/minify.launch b/launches/minify.launch
index e26fa2d8959..9a36433246a 100644
--- a/launches/minify.launch
+++ b/launches/minify.launch
@@ -1,19 +1,10 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<launchConfiguration type="org.eclipse.ant.AntLaunchConfigurationType">
-<booleanAttribute key="org.eclipse.ant.ui.DEFAULT_VM_INSTALL" value="false"/>
-<listAttribute key="org.eclipse.debug.core.MAPPED_RESOURCE_PATHS">
-<listEntry value="/Cesium/build.xml"/>
-</listAttribute>
-<listAttribute key="org.eclipse.debug.core.MAPPED_RESOURCE_TYPES">
-<listEntry value="1"/>
-</listAttribute>
+<launchConfiguration type="org.eclipse.ui.externaltools.ProgramLaunchConfigurationType">
 <listAttribute key="org.eclipse.debug.ui.favoriteGroups">
 <listEntry value="org.eclipse.ui.externaltools.launchGroup"/>
 </listAttribute>
-<stringAttribute key="org.eclipse.jdt.launching.CLASSPATH_PROVIDER" value="org.eclipse.ant.ui.AntClasspathProvider"/>
-<stringAttribute key="org.eclipse.jdt.launching.PROJECT_ATTR" value="Cesium"/>
-<stringAttribute key="org.eclipse.jdt.launching.SOURCE_PATH_PROVIDER" value="org.eclipse.ant.ui.AntClasspathProvider"/>
-<stringAttribute key="org.eclipse.ui.externaltools.ATTR_ANT_TARGETS" value="minify,"/>
-<stringAttribute key="org.eclipse.ui.externaltools.ATTR_LOCATION" value="${workspace_loc:/Cesium/build.xml}"/>
-<stringAttribute key="process_factory_id" value="org.eclipse.ant.ui.remoteAntProcessFactory"/>
+<stringAttribute key="org.eclipse.ui.externaltools.ATTR_LAUNCH_CONFIGURATION_BUILD_SCOPE" value="${none}"/>
+<stringAttribute key="org.eclipse.ui.externaltools.ATTR_LOCATION" value="${system_path:node}"/>
+<stringAttribute key="org.eclipse.ui.externaltools.ATTR_TOOL_ARGUMENTS" value="./node_modules/gulp/bin/gulp.js minify"/>
+<stringAttribute key="org.eclipse.ui.externaltools.ATTR_WORKING_DIRECTORY" value="${workspace_loc:/Cesium}"/>
 </launchConfiguration>
diff --git a/launches/release.launch b/launches/release.launch
index 4ac00159ae5..c9ae048e39e 100644
--- a/launches/release.launch
+++ b/launches/release.launch
@@ -1,19 +1,10 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<launchConfiguration type="org.eclipse.ant.AntLaunchConfigurationType">
-<booleanAttribute key="org.eclipse.ant.ui.DEFAULT_VM_INSTALL" value="false"/>
-<listAttribute key="org.eclipse.debug.core.MAPPED_RESOURCE_PATHS">
-<listEntry value="/Cesium/build.xml"/>
-</listAttribute>
-<listAttribute key="org.eclipse.debug.core.MAPPED_RESOURCE_TYPES">
-<listEntry value="1"/>
-</listAttribute>
+<launchConfiguration type="org.eclipse.ui.externaltools.ProgramLaunchConfigurationType">
 <listAttribute key="org.eclipse.debug.ui.favoriteGroups">
 <listEntry value="org.eclipse.ui.externaltools.launchGroup"/>
 </listAttribute>
-<stringAttribute key="org.eclipse.jdt.launching.CLASSPATH_PROVIDER" value="org.eclipse.ant.ui.AntClasspathProvider"/>
-<stringAttribute key="org.eclipse.jdt.launching.PROJECT_ATTR" value="Cesium"/>
-<stringAttribute key="org.eclipse.jdt.launching.SOURCE_PATH_PROVIDER" value="org.eclipse.ant.ui.AntClasspathProvider"/>
-<stringAttribute key="org.eclipse.ui.externaltools.ATTR_ANT_TARGETS" value="release,"/>
-<stringAttribute key="org.eclipse.ui.externaltools.ATTR_LOCATION" value="${workspace_loc:/Cesium/build.xml}"/>
-<stringAttribute key="process_factory_id" value="org.eclipse.ant.ui.remoteAntProcessFactory"/>
+<stringAttribute key="org.eclipse.ui.externaltools.ATTR_LAUNCH_CONFIGURATION_BUILD_SCOPE" value="${none}"/>
+<stringAttribute key="org.eclipse.ui.externaltools.ATTR_LOCATION" value="${system_path:node}"/>
+<stringAttribute key="org.eclipse.ui.externaltools.ATTR_TOOL_ARGUMENTS" value="./node_modules/gulp/bin/gulp.js release"/>
+<stringAttribute key="org.eclipse.ui.externaltools.ATTR_WORKING_DIRECTORY" value="${workspace_loc:/Cesium}"/>
 </launchConfiguration>