diff --git a/packages/taro-components/src/components/input/index.js b/packages/taro-components/src/components/input/index.js
index 291eb338e48b..23c1b5b8196d 100644
--- a/packages/taro-components/src/components/input/index.js
+++ b/packages/taro-components/src/components/input/index.js
@@ -72,7 +72,7 @@ class Input extends Nerv.Component {
         value: { value }
       })
       // 修复 IOS 光标跳转问题
-      if (inputType !== 'number') {
+      if (!['number', 'file'].includes(inputType)) {
         const pos = e.target.selectionEnd
         setTimeout(
           () => {
diff --git a/packages/taro-mobx-common/src/createProvider.js b/packages/taro-mobx-common/src/createProvider.js
deleted file mode 100755
index e371c39916b3..000000000000
--- a/packages/taro-mobx-common/src/createProvider.js
+++ /dev/null
@@ -1,14 +0,0 @@
-import { setStore } from './store'
-
-export function createProvider (Component, Children) {
-  return class Provider extends Component {
-    constructor (props) {
-      super(props)
-      setStore(props.store)
-    }
-
-    render () {
-      return Children.only(this.props.children)
-    }
-  }
-}
diff --git a/packages/taro-mobx-common/src/index.js b/packages/taro-mobx-common/src/index.js
index f8ca3eb56bcf..a846660d6bd6 100755
--- a/packages/taro-mobx-common/src/index.js
+++ b/packages/taro-mobx-common/src/index.js
@@ -1,4 +1,3 @@
 export { observer } from './observer'
-
 export { inject } from './inject'
-export { createProvider } from './createProvider'
+export { setStore } from './store'
diff --git a/packages/taro-mobx-h5/Provider.js b/packages/taro-mobx-h5/Provider.js
new file mode 100755
index 000000000000..1b9193428425
--- /dev/null
+++ b/packages/taro-mobx-h5/Provider.js
@@ -0,0 +1,14 @@
+import { Children } from 'nervjs'
+import { Component } from '@tarojs/taro-h5'
+import { setStore } from '@tarojs/mobx-common'
+
+export default class Provider extends Component {
+  constructor (props) {
+    super(props)
+    setStore(props.store)
+  }
+
+  render () {
+    return Children.only(this.props.children)
+  }
+}
diff --git a/packages/taro-mobx-h5/index.js b/packages/taro-mobx-h5/index.js
index 4796e8877b70..7bc8ddae5071 100644
--- a/packages/taro-mobx-h5/index.js
+++ b/packages/taro-mobx-h5/index.js
@@ -1,11 +1,11 @@
 import { Component } from '@tarojs/taro-h5'
-import { createElement, Children } from 'nervjs'
-import { createProvider, inject as originInject } from '@tarojs/mobx-common'
+import { createElement } from 'nervjs'
+import { inject as originInject } from '@tarojs/mobx-common'
 
 export function inject () {
   return originInject(...arguments, { Component, createElement })
 }
 
-export const Provider = createProvider(Component, Children)
-
 export { observer } from '@tarojs/mobx-common'
+
+export { default as Provider } from './Provider'
diff --git a/packages/taro-mobx-rn/Provider.js b/packages/taro-mobx-rn/Provider.js
new file mode 100755
index 000000000000..155ee0763c08
--- /dev/null
+++ b/packages/taro-mobx-rn/Provider.js
@@ -0,0 +1,14 @@
+import { Children } from 'react'
+import { Component } from '@tarojs/taro-rn'
+import { setStore } from '@tarojs/mobx-common'
+
+export default class Provider extends Component {
+  constructor (props) {
+    super(props)
+    setStore(props.store)
+  }
+
+  render () {
+    return Children.only(this.props.children)
+  }
+}
diff --git a/packages/taro-mobx-rn/index.js b/packages/taro-mobx-rn/index.js
index 3134068e7470..2e3d3c8f06f1 100644
--- a/packages/taro-mobx-rn/index.js
+++ b/packages/taro-mobx-rn/index.js
@@ -1,11 +1,11 @@
 import { Component } from '@tarojs/taro-rn'
-import { Children, createElement } from 'react'
-import { createProvider, inject as originInject } from '@tarojs/mobx-common'
+import { createElement } from 'react'
+import { inject as originInject } from '@tarojs/mobx-common'
 
 export function inject () {
   return originInject(...arguments, { Component, createElement })
 }
 
-export const Provider = createProvider(Component, Children)
-
 export { observer } from '@tarojs/mobx-common'
+
+export { default as Provider } from './Provider'
diff --git a/packages/taro-transformer-wx/src/class.ts b/packages/taro-transformer-wx/src/class.ts
index 4bf0339b69b0..e3798ede781a 100644
--- a/packages/taro-transformer-wx/src/class.ts
+++ b/packages/taro-transformer-wx/src/class.ts
@@ -654,8 +654,6 @@ class Transformer {
           this.componentProperies,
           this.loopRefs
         ).outputTemplate
-    } else {
-      throw codeFrameError(this.classPath.node.loc, '没有定义 render 方法')
     }
   }
 
diff --git a/packages/taro-transformer-wx/src/index.ts b/packages/taro-transformer-wx/src/index.ts
index 688bc3126f71..7d130c335afa 100644
--- a/packages/taro-transformer-wx/src/index.ts
+++ b/packages/taro-transformer-wx/src/index.ts
@@ -5,7 +5,7 @@ import { prettyPrint } from 'html'
 import { transform as parse } from 'babel-core'
 import * as ts from 'typescript'
 import { Transformer } from './class'
-import { setting, findFirstIdentifierFromMemberExpression, isContainJSXElement, codeFrameError, isArrayMapCallExpression } from './utils'
+import { setting, findFirstIdentifierFromMemberExpression, isContainJSXElement, codeFrameError, isArrayMapCallExpression, pathResolver } from './utils'
 import * as t from 'babel-types'
 import { DEFAULT_Component_SET, INTERNAL_SAFE_GET, TARO_PACKAGE_NAME, REDUX_PACKAGE_NAME, MOBX_PACKAGE_NAME, IMAGE_COMPONENTS, INTERNAL_INLINE_STYLE, THIRD_PARTY_COMPONENTS, INTERNAL_GET_ORIGNAL, setLoopOriginal, GEL_ELEMENT_BY_ID } from './constant'
 import { Adapters, setAdapter, Adapter } from './adapter'
@@ -241,7 +241,7 @@ export default function transform (options: Options): TransformResult {
           if (bindingPath.isImportDeclaration()) {
             const source = bindingPath.node.source
             try {
-              const p = fs.existsSync(source.value + '.js') ? source.value + '.js' : source.value + '.tsx'
+              const p = pathResolver(source.value, options.sourcePath) + (options.isTyped ? '.js' : '.js')
               const code = fs.readFileSync(p, 'utf8')
               componentProperies = transform({
                 isRoot: false,