modify apprecovervy

Signed-off-by: N liuwei <liuwei573@huawei.com>

modify apprecovervy
Signed-off-by: N liuwei <liuwei573@huawei.com>
02f74365 · liuwei · 4f44484c · 02f74365
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en/application-dev/dfx/apprecovery-guidelines.md en/application-dev/dfx/apprecovery-guidelines.md +2 -2

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--- a/en/application-dev/dfx/apprecovery-guidelines.md
+++ b/en/application-dev/dfx/apprecovery-guidelines.md
@@ -168,9 +168,9 @@ onWindowStageDestroy() {
    console.log("[Demo] MainAbility onWindowStageDestroy")

    G.unRegisterObserver = (() => {
-        errorManager.off(type: 'error', registerId: number, (err) => {
+        errorManager.off(type: 'error', registerId: number, (err:Error) => {
            console.error("[Demo] err:", err);
-        }): void;
+        });
    })
 }
 ```