diff --git a/package/PikaStdLib/PikaStdData_FILEIO.c b/package/PikaStdLib/PikaStdData_FILEIO.c
index f6378a577..a0f8cd853 100644
--- a/package/PikaStdLib/PikaStdData_FILEIO.c
+++ b/package/PikaStdLib/PikaStdData_FILEIO.c
@@ -8,8 +8,11 @@ int PikaStdData_FILEIO_init(PikaObj* self, char* path, char* mode) {
         /* already initialized */
         return 0;
     }
-    if (strIsStartWith(path, "pikafs/")) {
-        pikafs_FILE* f = pikafs_fopen(path + 7, "rb");
+    if (strIsStartWith(path, "/pikafs/")) {
+        pikafs_FILE* f = pikafs_fopen(path + 8, "rb");
+        if (f == NULL) {
+            return 1;
+        }
         obj_setInt(self, "pikafs", PIKA_TRUE);
         obj_setPtr(self, "_f", f);
         obj_setStr(self, "_mode", mode);
diff --git a/port/linux/.vscode/launch.json b/port/linux/.vscode/launch.json
index 0714c6468..8c310a1e1 100644
--- a/port/linux/.vscode/launch.json
+++ b/port/linux/.vscode/launch.json
@@ -33,7 +33,8 @@
                 // "--gtest_filter=json.speed"
                 // "--gtest_filter=json.json_issue1"
                 // "--gtest_filter=json.err"
-                "--gtest_filter=builtin.eval"
+                // "--gtest_filter=builtin.eval"
+                "--gtest_filter=stddata.pikafs_open_err"
             ],
             "stopAtEntry": false,
             "cwd": "${workspaceFolder}",
diff --git a/port/linux/.vscode/settings.json b/port/linux/.vscode/settings.json
index 0547cb6ab..a69f7adcd 100644
--- a/port/linux/.vscode/settings.json
+++ b/port/linux/.vscode/settings.json
@@ -133,5 +133,8 @@
     },
     "[c]": {
         "editor.defaultFormatter": "llvm-vs-code-extensions.vscode-clangd"
+    },
+    "[jsonc]": {
+        "editor.defaultFormatter": "vscode.json-language-features"
     }
 }
\ No newline at end of file
diff --git a/port/linux/package/pikascript/pikascript-lib/PikaStdLib/PikaStdData_FILEIO.c b/port/linux/package/pikascript/pikascript-lib/PikaStdLib/PikaStdData_FILEIO.c
index f6378a577..a0f8cd853 100644
--- a/port/linux/package/pikascript/pikascript-lib/PikaStdLib/PikaStdData_FILEIO.c
+++ b/port/linux/package/pikascript/pikascript-lib/PikaStdLib/PikaStdData_FILEIO.c
@@ -8,8 +8,11 @@ int PikaStdData_FILEIO_init(PikaObj* self, char* path, char* mode) {
         /* already initialized */
         return 0;
     }
-    if (strIsStartWith(path, "pikafs/")) {
-        pikafs_FILE* f = pikafs_fopen(path + 7, "rb");
+    if (strIsStartWith(path, "/pikafs/")) {
+        pikafs_FILE* f = pikafs_fopen(path + 8, "rb");
+        if (f == NULL) {
+            return 1;
+        }
         obj_setInt(self, "pikafs", PIKA_TRUE);
         obj_setPtr(self, "_f", f);
         obj_setStr(self, "_mode", mode);
diff --git a/src/PikaCompiler.c b/src/PikaCompiler.c
index d2c4920f8..fd13be3ae 100644
--- a/src/PikaCompiler.c
+++ b/src/PikaCompiler.c
@@ -1080,17 +1080,24 @@ PIKA_RES pikaMaker_linkRaw(PikaMaker* self, char* file_path) {
  */
 pikafs_FILE* pikafs_fopen(char* file_name, char* mode) {
     pikafs_FILE* f = (pikafs_FILE*)pikaMalloc(sizeof(pikafs_FILE));
+    if (NULL == f) {
+        return NULL;  // 避免空指针
+    }
     memset(f, 0, sizeof(pikafs_FILE));
     extern volatile PikaObj* __pikaMain;
     uint8_t* library_bytes = obj_getPtr((PikaObj*)__pikaMain, "@libraw");
     if (NULL == library_bytes) {
-        return NULL;
+        goto __error;  // 如果library_bytes为NULL，则跳转到__error
     }
     if (PIKA_RES_OK !=
         _loadModuleDataWithName(library_bytes, file_name, &f->addr, &f->size)) {
-        return NULL;
+        goto __error;  // 如果_loadModuleDataWithName的结果不是PIKA_RES_OK，则跳转到__error
     }
     return f;
+
+__error:
+    pikaFree(f, sizeof(pikafs_FILE));  // 释放内存
+    return NULL;
 }
 
 pikafs_FILE* pikafs_fopen_pack(char* pack_name, char* file_name) {
@@ -1156,7 +1163,7 @@ int pikafs_fwrite(void* buf, size_t size, size_t count, pikafs_FILE* file) {
  * @return 0 if success
  */
 int pikafs_fclose(pikafs_FILE* file) {
-    if (file->need_free){
+    if (file->need_free) {
         pikaFree(file->addr, file->size);
     }
     pikaFree(file, sizeof(pikafs_FILE));
diff --git a/test/stddata-test.cpp b/test/stddata-test.cpp
index 4d8f61f56..7ed8ed7b0 100644
--- a/test/stddata-test.cpp
+++ b/test/stddata-test.cpp
@@ -540,7 +540,7 @@ TEST(stddata, pikafs_open) {
     /* run */
     __platform_printf("BEGIN\r\n");
     obj_run(pikaMain,
-            "f = open('pikafs/widget_config.ini','r')\n"
+            "f = open('/pikafs/widget_config.ini','r')\n"
             "f.read(8)\n"
             "f.close()\n");
     /* collect */
@@ -551,6 +551,26 @@ TEST(stddata, pikafs_open) {
     EXPECT_EQ(pikaMemNow(), 0);
 }
 
+TEST(stddata, pikafs_open_err) {
+    /* init */
+    g_PikaMemInfo.heapUsedMax = 0;
+    PikaObj* pikaMain = newRootObj("pikaMain", New_PikaMain);
+    extern unsigned char pikaModules_py_a[];
+    obj_linkLibrary(pikaMain, pikaModules_py_a);
+    /* run */
+    __platform_printf("BEGIN\r\n");
+    obj_run(pikaMain,
+            "f = open('/pikafs/_no_file_widget_config.ini','r')\n"
+            "f.read(8)\n"
+            "f.close()\n");
+    /* collect */
+    /* assert */
+    // EXPECT_STREQ(log_buff[0], "'[端口]'\r\n");
+    /* deinit */
+    obj_deinit(pikaMain);
+    EXPECT_EQ(pikaMemNow(), 0);
+}
+
 TEST(stddata, list_slice_issue) {
     /* init */
     g_PikaMemInfo.heapUsedMax = 0;