请检查摄像头权限。

app/src/main/res/values-en/strings.xml

@@ -9,7 +9,7 @@
 	<string name="camera_close_notice">You have turned off the lights!</string>
     
 	<string name="camera_problem">Sorry, there is a problem with your camera. You may need to reboot your device.</string>
-	<string name="framwork_problem">There is a temporary problem with QR code scanning. You reboot and try again.</string>
+	<string name="framwork_problem">There is a temporary problem with QR code scanning. Please check camera permission.</string>
 	<string name="msg_share_subject_line">This is the content of the barcode I scanned.</string>
 	<string name="msg_default_mms_subject">Hi</string>
 	<string name="msg_intent_failed">Sorry, the required software could not be opened. Barcode content may not be valid.</string>

app/src/main/res/values/strings.xml

@@ -9,7 +9,7 @@
 	<string name="camera_close_notice">您已经关闭了灯光！</string>
     
 	<string name="camera_problem">抱歉，您相机出现问题。您可能需要重启设备。</string>
-	<string name="framwork_problem">二维码扫描暂时出现问题。您重启再试。</string>
+	<string name="framwork_problem">二维码扫描暂时出现问题。请检查摄像头权限。</string>
 	<string name="msg_share_subject_line">这是我所扫描条码的内容</string>
 	<string name="msg_default_mms_subject">Hi</string>
 	<string name="msg_intent_failed">抱歉，无法打开所需软件。 条码内容可能无效。</string>