diff --git a/app/src/main/java/io/legado/app/ui/config/FileAssociationViewModel.kt b/app/src/main/java/io/legado/app/ui/config/FileAssociationViewModel.kt
index 02aab3668..4f897c791 100644
--- a/app/src/main/java/io/legado/app/ui/config/FileAssociationViewModel.kt
+++ b/app/src/main/java/io/legado/app/ui/config/FileAssociationViewModel.kt
@@ -13,66 +13,73 @@ import io.legado.app.utils.readText
 import java.io.File
 
 class FileAssociationViewModel(application: Application) : BaseViewModel(application) {
+
     fun dispatchIndent(uri: Uri): Intent? {
-        val url: String
-        //如果是普通的url，需要根据返回的内容判断是什么
-        if (uri.scheme == "file" || uri.scheme == "content") {
-            val content = if (uri.scheme == "file") {
-                val file = File(uri.path.toString())
-                if (file.exists()) {
-                    file.readText()
+        try {
+            val url: String
+            //如果是普通的url，需要根据返回的内容判断是什么
+            if (uri.scheme == "file" || uri.scheme == "content") {
+                val content = if (uri.scheme == "file") {
+                    val file = File(uri.path.toString())
+                    if (file.exists()) {
+                        file.readText()
+                    } else {
+                        null
+                    }
                 } else {
-                    null
+                    DocumentFile.fromSingleUri(context, uri)?.readText(context)
                 }
-            } else {
-                DocumentFile.fromSingleUri(context, uri)?.readText(context)
-            }
-            var scheme = ""
-            if (content != null) {
-                if (content.isJsonObject() || content.isJsonArray()) {
-                    //暂时根据文件内容判断属于什么
-                    when {
-                        content.contains("bookSourceUrl") -> {
-                            scheme = "booksource"
-                        }
-                        content.contains("sourceUrl") -> {
-                            scheme = "rsssource"
-                        }
-                        content.contains("pattern") -> {
-                            scheme = "replace"
+                var scheme = ""
+                if (content != null) {
+                    if (content.isJsonObject() || content.isJsonArray()) {
+                        //暂时根据文件内容判断属于什么
+                        when {
+                            content.contains("bookSourceUrl") -> {
+                                scheme = "booksource"
+                            }
+                            content.contains("sourceUrl") -> {
+                                scheme = "rsssource"
+                            }
+                            content.contains("pattern") -> {
+                                scheme = "replace"
+                            }
                         }
                     }
-                }
-                if (TextUtils.isEmpty(scheme)) {
-                    execute {
-                        if (uri.scheme == "content"){
-                            LocalBook.importFile(uri.toString())
-                        }else{
-                            LocalBook.importFile(uri.path.toString())
+                    if (TextUtils.isEmpty(scheme)) {
+                        execute {
+                            if (uri.scheme == "content") {
+                                LocalBook.importFile(uri.toString())
+                            } else {
+                                LocalBook.importFile(uri.path.toString())
+                            }
+                            toast("添加本地文件成功${uri.path}")
                         }
-                        toast("添加本地文件成功${uri.path}")
+                        return null
                     }
+                } else {
+                    toast("文件不存在")
                     return null
                 }
+                // content模式下，需要传递完整的路径，方便后续解析
+                url = if (uri.scheme == "content") {
+                    "yuedu://${scheme}/importonline?src=$uri"
+                } else {
+                    "yuedu://${scheme}/importonline?src=${uri.path}"
+                }
+
+            } else if (uri.scheme == "yuedu") {
+                url = uri.toString()
             } else {
-                toast("文件不存在")
-                return null
-            }
-            // content模式下，需要传递完整的路径，方便后续解析
-            url = if (uri.scheme == "content"){
-                "yuedu://${scheme}/importonline?src=$uri"
-            }else{
-                "yuedu://${scheme}/importonline?src=${uri.path}"
+                url = "yuedu://booksource/importonline?src=${uri.path}"
             }
-
-        } else if (uri.scheme == "yuedu") {
-            url = uri.toString()
-        } else {
-            url = "yuedu://booksource/importonline?src=${uri.path}"
+            val data = Uri.parse(url)
+            val newIndent = Intent(Intent.ACTION_VIEW)
+            newIndent.data = data
+            return newIndent
+        } catch (e: Exception) {
+            e.printStackTrace()
+            toast(e.localizedMessage)
+            return null
         }
-        val data = Uri.parse(url)
-        val newIndent = Intent(Intent.ACTION_VIEW)
-        newIndent.data = data
-        return newIndent
     }
 }
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