diff --git a/build.third_step0.gradle b/build.third_step0.gradle
index 2f7c9c4ae..8fc464d7f 100644
--- a/build.third_step0.gradle
+++ b/build.third_step0.gradle
@@ -10,7 +10,7 @@ configurations.all {
     resolutionStrategy.cacheChangingModulesFor 0, 'seconds'
 }
 //源码版本
-sourceCompatibility=1.7
+sourceCompatibility=1.6
 //构建的class版本
 targetCompatibility=1.6
 
diff --git a/build.third_step1.gradle b/build.third_step1.gradle
index 73417c4ff..64beecf76 100644
--- a/build.third_step1.gradle
+++ b/build.third_step1.gradle
@@ -6,7 +6,7 @@ tasks.withType(JavaCompile){
 }
 
 //源码版本
-sourceCompatibility=1.7
+sourceCompatibility=1.6
 //构建的class版本
 targetCompatibility=1.6
 
diff --git a/build.third_step2.gradle b/build.third_step2.gradle
index 679858310..971f814f2 100644
--- a/build.third_step2.gradle
+++ b/build.third_step2.gradle
@@ -6,7 +6,7 @@ tasks.withType(JavaCompile){
 }
 
 //源码版本
-sourceCompatibility=1.7
+sourceCompatibility=1.6
 //构建的class版本
 targetCompatibility=1.6
 
diff --git a/build.third_step3.gradle b/build.third_step3.gradle
index 953fff3a1..4e80a9326 100644
--- a/build.third_step3.gradle
+++ b/build.third_step3.gradle
@@ -6,7 +6,7 @@ tasks.withType(JavaCompile){
 }
 
 //源码版本
-sourceCompatibility=1.7
+sourceCompatibility=1.6
 //构建的class版本
 targetCompatibility=1.6
 
diff --git a/build.third_step4.gradle b/build.third_step4.gradle
index 596b5cfcf..46de47c24 100644
--- a/build.third_step4.gradle
+++ b/build.third_step4.gradle
@@ -6,7 +6,7 @@ tasks.withType(JavaCompile){
 }
 
 //源码版本
-sourceCompatibility=1.7
+sourceCompatibility=1.6
 //构建的class版本
 targetCompatibility=1.6
 
diff --git a/build.third_step5.gradle b/build.third_step5.gradle
index 3cbde7cdd..d45e1b48e 100644
--- a/build.third_step5.gradle
+++ b/build.third_step5.gradle
@@ -6,7 +6,7 @@ tasks.withType(JavaCompile){
 }
 
 //源码版本
-sourceCompatibility=1.7
+sourceCompatibility=1.6
 //构建的class版本
 targetCompatibility=1.6
 
diff --git a/build.third_step6.gradle b/build.third_step6.gradle
index d85fc0abd..ce0dfce94 100644
--- a/build.third_step6.gradle
+++ b/build.third_step6.gradle
@@ -6,7 +6,7 @@ tasks.withType(JavaCompile){
 }
 
 //源码版本
-sourceCompatibility=1.7
+sourceCompatibility=1.6
 //构建的class版本
 targetCompatibility=1.6