update zh-cn/application-dev/reference/apis/js-apis-freeInstall.md.

Signed-off-by: N耿文广 <gengwenguang@huawei.com>

zh-cn/application-dev/reference/apis/js-apis-freeInstall.md

@@ -136,13 +136,14 @@ setHapModuleUpgradeFlag(bundleName: string, moduleName: string, upgradeFlag: Upg
 
 ```js
 import freeInstall from '@ohos.bundle.freeInstall';
+import { BusinessError } from '@ohos.base';
 let bundleName = 'com.example.myapplication';
 let moduleName = 'entry';
 let upgradeFlag = freeInstall.UpgradeFlag.SINGLE_UPGRADE;
 try {
     freeInstall.setHapModuleUpgradeFlag(bundleName, moduleName, upgradeFlag).then(() => {
         console.info('Operation succeed')
-    }).catch(err => {
+    }).catch((err: BusinessError) => {
         console.error('Operation failed:' + JSON.stringify(err));
     });
 } catch (err) {
@@ -236,12 +237,13 @@ isHapModuleRemovable(bundleName: string, moduleName: string): Promise\<boolean>;
 
 ```js
 import freeInstall from '@ohos.bundle.freeInstall';
+import { BusinessError } from '@ohos.base';
 let bundleName = 'com.example.myapplication';
 let moduleName = 'entry';
 try {
     freeInstall.isHapModuleRemovable(bundleName, moduleName).then(data => {
         console.info('Operation succeed:' + JSON.stringify(data));
-    }).catch(err => {
+    }).catch((err: BusinessError) => {
         console.error('Operation failed:' + JSON.stringify(err));
     });
 } catch (err) {
@@ -332,12 +334,13 @@ getBundlePackInfo(bundleName: string, bundlePackFlag : BundlePackFlag): Promise\
 
 ```js
 import freeInstall from '@ohos.bundle.freeInstall';
+import { BusinessError } from '@ohos.base';
 let bundleName = 'com.example.myapplication';
 let bundlePackFlag = freeInstall.BundlePackFlag.GET_PACK_INFO_ALL;
 try {
     freeInstall.getBundlePackInfo(bundleName, bundlePackFlag).then(data => {
         console.info('Operation succeed:' + JSON.stringify(data));
-    }).catch(err => {
+    }).catch((err: BusinessError) => {
         console.error('Operation failed:' + JSON.stringify(err));
     });
 } catch (err) {
@@ -402,10 +405,11 @@ getDispatchInfo(): Promise\<DispatchInfo>;
 
 ```js
 import freeInstall from '@ohos.bundle.freeInstall';
+import { BusinessError } from '@ohos.base';
 try {
     freeInstall.getDispatchInfo().then(data => {
         console.info('Operation succeed:' + JSON.stringify(data));
-    }).catch(err => {
+    }).catch((err: BusinessError) => {
         console.error('Operation failed:' + JSON.stringify(err));
     });
 } catch (err) {