diff --git a/samples/android/face-detection/.cproject b/samples/android/face-detection/.cproject
index f915bd4d0..9e2999042 100644
--- a/samples/android/face-detection/.cproject
+++ b/samples/android/face-detection/.cproject
@@ -25,7 +25,6 @@
 							<tool id="org.eclipse.cdt.build.core.settings.holder.1894181736" name="Assembly" superClass="org.eclipse.cdt.build.core.settings.holder">
 								<option id="org.eclipse.cdt.build.core.settings.holder.incpaths.1575527821" name="Include Paths" superClass="org.eclipse.cdt.build.core.settings.holder.incpaths" valueType="includePath">
 									<listOptionValue builtIn="false" value="&quot;${NDKROOT}/platforms/android-9/arch-arm/usr/include&quot;"/>
-									<listOptionValue builtIn="false" value="&quot;${NDKROOT}/toolchains/arm-linux-androideabi-4.4.3/prebuilt/windows/include&quot;"/>
 									<listOptionValue builtIn="false" value="&quot;${NDKROOT}/sources/cxx-stl/gnu-libstdc++/include&quot;"/>
 									<listOptionValue builtIn="false" value="&quot;${ProjDirPath}/../../sdk/native/jni/include&quot;"/>
 								</option>
@@ -37,7 +36,6 @@
 							<tool id="org.eclipse.cdt.build.core.settings.holder.303359177" name="GNU C++" superClass="org.eclipse.cdt.build.core.settings.holder">
 								<option id="org.eclipse.cdt.build.core.settings.holder.incpaths.373249505" name="Include Paths" superClass="org.eclipse.cdt.build.core.settings.holder.incpaths" valueType="includePath">
 									<listOptionValue builtIn="false" value="&quot;${NDKROOT}/platforms/android-9/arch-arm/usr/include&quot;"/>
-									<listOptionValue builtIn="false" value="&quot;${NDKROOT}/toolchains/arm-linux-androideabi-4.4.3/prebuilt/windows/include&quot;"/>
 									<listOptionValue builtIn="false" value="&quot;${ProjDirPath}/../../sdk/native/jni/include&quot;"/>
 									<listOptionValue builtIn="false" value="&quot;${NDKROOT}/sources/cxx-stl/gnu-libstdc++/include&quot;"/>
 								</option>
@@ -49,7 +47,6 @@
 							<tool id="org.eclipse.cdt.build.core.settings.holder.1156172258" name="GNU C" superClass="org.eclipse.cdt.build.core.settings.holder">
 								<option id="org.eclipse.cdt.build.core.settings.holder.incpaths.149918263" name="Include Paths" superClass="org.eclipse.cdt.build.core.settings.holder.incpaths" valueType="includePath">
 									<listOptionValue builtIn="false" value="&quot;${NDKROOT}/platforms/android-9/arch-arm/usr/include&quot;"/>
-									<listOptionValue builtIn="false" value="&quot;${NDKROOT}/toolchains/arm-linux-androideabi-4.4.3/prebuilt/windows/include&quot;"/>
 									<listOptionValue builtIn="false" value="&quot;${ProjDirPath}/../../sdk/native/jni/include&quot;"/>
 									<listOptionValue builtIn="false" value="&quot;${NDKROOT}/sources/cxx-stl/gnu-libstdc++/include&quot;"/>
 								</option>
diff --git a/samples/android/tutorial-3-native/.cproject b/samples/android/tutorial-3-native/.cproject
index d82fb3e76..1800e828e 100644
--- a/samples/android/tutorial-3-native/.cproject
+++ b/samples/android/tutorial-3-native/.cproject
@@ -25,7 +25,6 @@
 							<tool id="org.eclipse.cdt.build.core.settings.holder.1350943194" name="Assembly" superClass="org.eclipse.cdt.build.core.settings.holder">
 								<option id="org.eclipse.cdt.build.core.settings.holder.incpaths.1884803530" name="Include Paths" superClass="org.eclipse.cdt.build.core.settings.holder.incpaths" valueType="includePath">
 									<listOptionValue builtIn="false" value="&quot;${NDKROOT}/platforms/android-9/arch-arm/usr/include&quot;"/>
-									<listOptionValue builtIn="false" value="&quot;${NDKROOT}/toolchains/arm-linux-androideabi-4.4.3/prebuilt/windows/include&quot;"/>
 									<listOptionValue builtIn="false" value="&quot;${NDKROOT}/sources/cxx-stl/gnu-libstdc++/include&quot;"/>
 									<listOptionValue builtIn="false" value="&quot;${ProjDirPath}/../../sdk/native/jni/include&quot;"/>
 								</option>
@@ -37,7 +36,6 @@
 							<tool id="org.eclipse.cdt.build.core.settings.holder.982773030" name="GNU C++" superClass="org.eclipse.cdt.build.core.settings.holder">
 								<option id="org.eclipse.cdt.build.core.settings.holder.incpaths.332905639" name="Include Paths" superClass="org.eclipse.cdt.build.core.settings.holder.incpaths" valueType="includePath">
 									<listOptionValue builtIn="false" value="&quot;${NDKROOT}/platforms/android-9/arch-arm/usr/include&quot;"/>
-									<listOptionValue builtIn="false" value="&quot;${NDKROOT}/toolchains/arm-linux-androideabi-4.4.3/prebuilt/windows/include&quot;"/>
 									<listOptionValue builtIn="false" value="&quot;${NDKROOT}/sources/cxx-stl/gnu-libstdc++/include&quot;"/>
 									<listOptionValue builtIn="false" value="&quot;${ProjDirPath}/../../sdk/native/jni/include&quot;"/>
 								</option>
@@ -49,7 +47,6 @@
 							<tool id="org.eclipse.cdt.build.core.settings.holder.472513352" name="GNU C" superClass="org.eclipse.cdt.build.core.settings.holder">
 								<option id="org.eclipse.cdt.build.core.settings.holder.incpaths.1490236166" name="Include Paths" superClass="org.eclipse.cdt.build.core.settings.holder.incpaths" valueType="includePath">
 									<listOptionValue builtIn="false" value="&quot;${NDKROOT}/platforms/android-9/arch-arm/usr/include&quot;"/>
-									<listOptionValue builtIn="false" value="&quot;${NDKROOT}/toolchains/arm-linux-androideabi-4.4.3/prebuilt/windows/include&quot;"/>
 									<listOptionValue builtIn="false" value="&quot;${NDKROOT}/sources/cxx-stl/gnu-libstdc++/include&quot;"/>
 									<listOptionValue builtIn="false" value="&quot;${ProjDirPath}/../../sdk/native/jni/include&quot;"/>
 								</option>
diff --git a/samples/android/tutorial-4-mixed/.cproject b/samples/android/tutorial-4-mixed/.cproject
index ca5bdb6b2..e089882e6 100644
--- a/samples/android/tutorial-4-mixed/.cproject
+++ b/samples/android/tutorial-4-mixed/.cproject
@@ -28,9 +28,8 @@
 								</option>
 								<option id="org.eclipse.cdt.build.core.settings.holder.incpaths.1028672579" superClass="org.eclipse.cdt.build.core.settings.holder.incpaths" valueType="includePath">
 									<listOptionValue builtIn="false" value="&quot;${NDKROOT}/platforms/android-9/arch-arm/usr/include&quot;"/>
-									<listOptionValue builtIn="false" value="&quot;${NDKROOT}/toolchains/arm-linux-androideabi-4.4.3/prebuilt/windows/include&quot;"/>
 									<listOptionValue builtIn="false" value="&quot;${NDKROOT}/sources/cxx-stl/gnu-libstdc++/include&quot;"/>
-									<listOptionValue builtIn="false" value="&quot;${ProjDirPath}/../../sdk/native\jni\include&quot;"/>
+									<listOptionValue builtIn="false" value="&quot;${ProjDirPath}/../../sdk/native/jni/include&quot;"/>
 								</option>
 								<inputType id="org.eclipse.cdt.build.core.settings.holder.inType.1470189286" languageId="org.eclipse.cdt.core.assembly" languageName="Assembly" sourceContentType="org.eclipse.cdt.core.asmSource" superClass="org.eclipse.cdt.build.core.settings.holder.inType"/>
 							</tool>
@@ -40,7 +39,6 @@
 								</option>
 								<option id="org.eclipse.cdt.build.core.settings.holder.incpaths.1772035264" superClass="org.eclipse.cdt.build.core.settings.holder.incpaths" valueType="includePath">
 									<listOptionValue builtIn="false" value="&quot;${NDKROOT}/platforms/android-9/arch-arm/usr/include&quot;"/>
-									<listOptionValue builtIn="false" value="&quot;${NDKROOT}/toolchains/arm-linux-androideabi-4.4.3/prebuilt/windows/include&quot;"/>
 									<listOptionValue builtIn="false" value="&quot;${NDKROOT}/sources/cxx-stl/gnu-libstdc++/include&quot;"/>
 									<listOptionValue builtIn="false" value="&quot;${ProjDirPath}/../../sdk/native/jni/include&quot;"/>
 								</option>
@@ -52,9 +50,8 @@
 								</option>
 								<option id="org.eclipse.cdt.build.core.settings.holder.incpaths.1841493632" superClass="org.eclipse.cdt.build.core.settings.holder.incpaths" valueType="includePath">
 									<listOptionValue builtIn="false" value="&quot;${NDKROOT}/platforms/android-9/arch-arm/usr/include&quot;"/>
-									<listOptionValue builtIn="false" value="&quot;${NDKROOT}/toolchains/arm-linux-androideabi-4.4.3/prebuilt/windows/include&quot;"/>
 									<listOptionValue builtIn="false" value="&quot;${NDKROOT}/sources/cxx-stl/gnu-libstdc++/include&quot;"/>
-									<listOptionValue builtIn="false" value="&quot;${ProjDirPath}/../../sdk/native\jni\include&quot;"/>
+									<listOptionValue builtIn="false" value="&quot;${ProjDirPath}/../../sdk/native/jni/include&quot;"/>
 								</option>
 								<inputType id="org.eclipse.cdt.build.core.settings.holder.inType.608739504" languageId="org.eclipse.cdt.core.gcc" languageName="GNU C" sourceContentType="org.eclipse.cdt.core.cSource,org.eclipse.cdt.core.cHeader" superClass="org.eclipse.cdt.build.core.settings.holder.inType"/>
 							</tool>