diff --git a/packages/wxa-cli/src/resolvers/component/index.js b/packages/wxa-cli/src/resolvers/component/index.js
index a6728be2..b8059704 100644
--- a/packages/wxa-cli/src/resolvers/component/index.js
+++ b/packages/wxa-cli/src/resolvers/component/index.js
@@ -95,7 +95,4 @@ export default class ComponentManager {
             }
         }, []);
     }
-
-    findComponentSource(com, mdl) {
-    }
 }
diff --git a/packages/wxa-cli/src/resolvers/xml/index.js b/packages/wxa-cli/src/resolvers/xml/index.js
index 62822d92..05f4d7f9 100644
--- a/packages/wxa-cli/src/resolvers/xml/index.js
+++ b/packages/wxa-cli/src/resolvers/xml/index.js
@@ -21,9 +21,11 @@ class XMLManager {
     parse(mdl) {
         if (mdl.xml == null) return null;
 
-        let libs = this.walkXML(mdl.xml, mdl);
+        let libs = [];
 
-        debug('libs in xml %O %O', mdl.xml, libs);
+        mdl.xml.forEach((element) => {
+            libs = libs.concat(this.walkXML(element, mdl));
+        });
 
         mdl.code = new Coder().decodeTemplate(domSerializer(mdl.xml, {xmlMode: true}));
 
@@ -31,19 +33,16 @@ class XMLManager {
     }
 
     walkXML(xml, mdl) {
-        debug('walk xml start %s', xml.nodeType);
         let libs = [];
         // ignore comment
-        if (xml.nodeType === NODE.COMMENT_NODE) return libs;
+        if (xml.type === 'comment') return libs;
 
-        if (xml.nodeType === NODE.ELEMENT_NODE) {
-            // element p view
-            debug('xml %O', xml);
+        if (xml.type === 'tag') {
             libs = libs.concat(this.walkAttr(xml.attribs, mdl));
         }
 
-        if (xml.childNodes) {
-            libs = libs.concat(Array.prototype.slice.call(xml.childNodes).reduce((ret, child)=>{
+        if (xml.children) {
+            libs = libs.concat(Array.prototype.slice.call(xml.children).reduce((ret, child)=>{
                 return ret.concat(this.walkXML(child, mdl));
             }, []));
         }
diff --git a/packages/wxa-cli/src/schedule.js b/packages/wxa-cli/src/schedule.js
index 1e364641..6ff3a37e 100644
--- a/packages/wxa-cli/src/schedule.js
+++ b/packages/wxa-cli/src/schedule.js
@@ -138,6 +138,8 @@ class Schedule {
     }
 
     async $parse(dep) {
+        if (dep.color === COLOR.COMPILED) return [];
+        if (dep.color === COLOR.CHANGED) dep.code = void(0);
         // calc hash
         // cause not every module is actually exists, we can not promise all module has hash here.
         let content = dep.content ? dep.content : readFile(dep.src);
@@ -293,26 +295,25 @@ class Schedule {
             output: new Set([dep.meta.outputPath]),
             outerDependencies: new Set(),
             dependency: function(file) {
-                // let DR = new DependencyResolver(scheduler.wxaConfigs.resolve, scheduler.meta);
-                // let {source} = DR.resolveDep(file, this);
-
                 // debugger;
                 this.outerDependencies.add(file);
             },
         };
 
-
         if (this.$indexOfModule.has(dep.src)) {
             let indexedModule = this.$indexOfModule.get(dep.src);
 
             // check hash
             child.hash = !child.isAbstract && child.content ? getHashWithString(child.content) : getHash(child.src);
 
-            if (child.hash !== indexedModule.hash) {
-                // module changed, clean up mdl.
+            // module changed: clean up mdl, mark module as changed.
+            if (
+                child.hash !== indexedModule.hash &&
+                indexedModule.color === COLOR.COMPILED
+            ) {
                 indexedModule.content = child.content;
-                indexedModule.code = void(0);
                 indexedModule.hash = child.hash;
+                indexedModule.color = COLOR.CHANGED;
             }
 
             // merge reference, cause the module is parsed
@@ -329,7 +330,7 @@ class Schedule {
 
             child = indexedModule;
         }
-        // debugger;
+
         if (child.color !== COLOR.COMPILED) this.$depPending.push(child);
         if (child.color === COLOR.INIT) this.$indexOfModule.set(child.src, child);