diff --git a/packages/taro-cli/src/h5/index.ts b/packages/taro-cli/src/h5/index.ts
index dc695135b52a..a7ba5d32e098 100644
--- a/packages/taro-cli/src/h5/index.ts
+++ b/packages/taro-cli/src/h5/index.ts
@@ -232,8 +232,9 @@ class Compiler {
       .on('unlink', filePath => {
         const relativePath = path.relative(appPath, filePath)
         const extname = path.extname(relativePath)
+        const distDirname = this.getTempDir(filePath)
         const isScriptFile = REG_SCRIPTS.test(extname)
-        const dist = this.getDist(filePath, isScriptFile)
+        const dist = this.getDist(distDirname, filePath, isScriptFile)
         printLog(processTypeEnum.UNLINK, '删除文件', relativePath)
         fs.unlinkSync(dist)
       })
@@ -267,7 +268,6 @@ class Compiler {
     let hasComponentDidShow = false
     let hasComponentDidHide = false
     let hasComponentWillUnmount = false
-    let hasJSX = false
     let hasNerv = false
     let stateNode: t.ClassProperty
 
@@ -542,6 +542,7 @@ class Compiler {
       }
     }
 
+    // require('fs').writeFileSync('./ast.json', JSON.stringify(ast, null, 2))
     traverse(ast, {
       ClassExpression: ClassDeclarationOrExpression,
       ClassDeclaration: ClassDeclarationOrExpression,
@@ -669,11 +670,6 @@ class Compiler {
           }
         }
       },
-      JSXElement: {
-        enter (astPath: NodePath<t.JSXElement>) {
-          hasJSX = true
-        }
-      },
       JSXOpeningElement: {
         enter (astPath: NodePath<t.JSXOpeningElement>) {
           const node = astPath.node
@@ -709,10 +705,10 @@ class Compiler {
             createHistoryNode,
             mountApisNode
           ]
-
           astPath.traverse(programExitVisitor)
 
-          if (hasJSX && !hasNerv) {
+          /* Taro.render(<App />) 会被移除，导致hasJSX判断错误 */
+          if (!hasNerv) {
             extraNodes.unshift(
               t.importDeclaration(
                 [t.importDefaultSpecifier(t.identifier(nervJsImportDefaultName))],
@@ -887,9 +883,13 @@ class Compiler {
           }
         }
       },
+      JSXElement: {
+        exit (astPath: NodePath<t.JSXElement>) {
+          hasJSX = true
+        }
+      },
       JSXOpeningElement: {
         exit (astPath: NodePath<t.JSXOpeningElement>) {
-          hasJSX = true
           const node = astPath.node
           const componentName = componentnameMap.get(toVar(node.name))
           const componentId = getComponentId(componentName, node)
@@ -1143,16 +1143,23 @@ class Compiler {
     }
   }
 
-  processFiles (filePath) {
-    const sourceRoot = this.sourceRoot
+  getTempDir (filePath) {
+    const appPath = this.appPath
+    const sourcePath = this.sourcePath
     const tempDir = this.tempDir
 
-    const file = fs.readFileSync(filePath)
     const dirname = path.dirname(filePath)
+    const relPath = path.relative(sourcePath, dirname)
+
+    return path.resolve(appPath, tempDir, relPath)
+  }
+
+  processFiles (filePath) {
+    const file = fs.readFileSync(filePath)
     const extname = path.extname(filePath)
-    const distDirname = dirname.replace(sourceRoot, tempDir)
+    const distDirname = this.getTempDir(filePath)
     const isScriptFile = REG_SCRIPTS.test(extname)
-    const distPath = this.getDist(filePath, isScriptFile)
+    const distPath = this.getDist(distDirname, filePath, isScriptFile)
 
     try {
       if (isScriptFile) {
@@ -1179,12 +1186,7 @@ class Compiler {
     }
   }
 
-  getDist (filename, isScriptFile) {
-    const sourceRoot = this.sourceRoot
-    const tempDir = this.tempDir
-
-    const dirname = path.dirname(filename)
-    const distDirname = dirname.replace(sourceRoot, tempDir)
+  getDist (distDirname, filename, isScriptFile) {
     return isScriptFile
       ? path.format({
         dir: distDirname,
diff --git a/packages/taro-components/src/components/video/index.js b/packages/taro-components/src/components/video/index.js
index 77e114984f7b..d39bd1ea7cce 100644
--- a/packages/taro-components/src/components/video/index.js
+++ b/packages/taro-components/src/components/video/index.js
@@ -210,6 +210,7 @@ class Video extends Component {
   }
 
   onLoadedMetadata = e => {
+    if (this.props.poster) return
     this.setState({
       duration: this.videoRef.duration
     })
diff --git a/packages/taro-transformer-wx/src/class.ts b/packages/taro-transformer-wx/src/class.ts
index e735ea34f486..c2680d826f52 100644
--- a/packages/taro-transformer-wx/src/class.ts
+++ b/packages/taro-transformer-wx/src/class.ts
@@ -741,7 +741,7 @@ class Transformer {
           }
 
           if (id.name.endsWith(CONTEXT_PROVIDER)) {
-            const valueAttr = path.node.openingElement.attributes.find(a => a.name.name === 'value')
+            const valueAttr = path.node.openingElement.attributes.find(a => t.isJSXIdentifier(a.name) && a.name.name === 'value')
             const contextName = id.name.slice(0, id.name.length - CONTEXT_PROVIDER.length)
             if (valueAttr) {
               if (t.isJSXElement(valueAttr.value)) {
diff --git a/packages/taro-transformer-wx/src/render.ts b/packages/taro-transformer-wx/src/render.ts
index 68d38432ed20..a3ea45be558c 100644
--- a/packages/taro-transformer-wx/src/render.ts
+++ b/packages/taro-transformer-wx/src/render.ts
@@ -502,7 +502,7 @@ export class RenderParser {
                     }
                   }
                   const block = buildBlockElement()
-                  const hasIfAttr = jsxElementPath.node.openingElement.attributes.find(a => a.name.name === Adapter.if)
+                  const hasIfAttr = jsxElementPath.node.openingElement.attributes.find(a => t.isJSXIdentifier(a.name) && a.name.name === Adapter.if)
                   const needWrapper = Adapters.swan === Adapter.type && hasIfAttr
                   if (needWrapper) {
                     block.children = [jsxElementPath.node]
@@ -872,7 +872,7 @@ export class RenderParser {
                 newJSXIfAttr(jsxElementPath.node, test, jsxElementPath)
               }
             }
-            const ifAttr = block.openingElement.attributes.find(a => a.name.name === Adapter.if)
+            const ifAttr = block.openingElement.attributes.find(a => t.isJSXIdentifier(a.name) && a.name.name === Adapter.if)
             if (ifAttr && t.isJSXExpressionContainer(ifAttr.value, { expression: test })) {
               const newBlock = buildBlockElement()
               newBlock.children = [block, jsxElementPath.node]
@@ -883,7 +883,7 @@ export class RenderParser {
               let hasNest = false
               this.handleNestedIfStatement(block, jsxElementPath.node, parentIfStatement.node.test, hasNest, isElse || !!ifStatement.findParent(p => p.node === parentIfStatement.node.alternate))
               if (!hasNest && parentIfStatement.get('alternate') !== ifStatement) {
-                const ifAttr = block.openingElement.attributes.find(a => a.name.name === Adapter.if)
+                const ifAttr = block.openingElement.attributes.find(a => t.isJSXIdentifier(a.name) && a.name.name === Adapter.if)
                 if (ifAttr && t.isJSXExpressionContainer(ifAttr.value, { expression: parentIfStatement.node.test })) {
                   const newBlock = buildBlockElement()
                   block.children.push(jsxElementPath.node)
@@ -922,8 +922,8 @@ export class RenderParser {
       if (!t.isJSXElement(child)) {
         continue
       }
-      const ifAttr = child.openingElement.attributes.find(a => a.name.name === Adapter.if)
-      const ifElseAttr = child.openingElement.attributes.find(a => a.name.name === Adapter.elseif)
+      const ifAttr = child.openingElement.attributes.find(a => t.isJSXIdentifier(a.name) && a.name.name === Adapter.if)
+      const ifElseAttr = child.openingElement.attributes.find(a => t.isJSXIdentifier(a.name) && a.name.name === Adapter.elseif)
       if (
         (ifAttr && t.isJSXExpressionContainer(ifAttr.value, { expression: test }))
         ||
@@ -946,8 +946,8 @@ export class RenderParser {
       if (!t.isJSXElement(child)) {
         continue
       }
-      const ifAttr = child.openingElement.attributes.find(a => a.name.name === Adapter.if)
-      const ifElseAttr = child.openingElement.attributes.find(a => a.name.name === Adapter.elseif)
+      const ifAttr = child.openingElement.attributes.find(a => t.isJSXIdentifier(a.name) && a.name.name === Adapter.if)
+      const ifElseAttr = child.openingElement.attributes.find(a => t.isJSXIdentifier(a.name) && a.name.name === Adapter.elseif)
       if (
         (ifAttr && t.isJSXExpressionContainer(ifAttr.value, { expression: test }))
         ||