diff --git a/Specs/8/b/3/MSMobAdSDK/0.8.72.2/MSMobAdSDK.podspec.json b/Specs/8/b/3/MSMobAdSDK/0.8.72.2/MSMobAdSDK.podspec.json
deleted file mode 100644
index 299aede..0000000
--- a/Specs/8/b/3/MSMobAdSDK/0.8.72.2/MSMobAdSDK.podspec.json
+++ /dev/null
@@ -1,84 +0,0 @@
-{
-  "name": "MSMobAdSDK",
-  "version": "0.8.72.2",
-  "summary": "Mobile AD SDK For iOS.",
-  "homepage": "https://github.com/adxdata/MSMobAdSDK-iOS",
-  "license": "MIT",
-  "authors": {
-    "Lei Dai": "dailei@adxdata.com"
-  },
-  "platforms": {
-    "ios": "9.0"
-  },
-  "source": {
-    "git": "https://git.adxdata.com/meishu/MSMobAdSDK-iOS.git",
-    "tag": "0.8.72.2"
-  },
-  "frameworks": [
-    "AdSupport",
-    "AVFoundation",
-    "CoreLocation",
-    "CoreMedia",
-    "CoreMotion",
-    "CoreTelephony",
-    "MessageUI",
-    "QuartzCore",
-    "SafariServices",
-    "Security",
-    "StoreKit",
-    "SystemConfiguration",
-    "WebKit"
-  ],
-  "libraries": [
-    "c++",
-    "resolv.9",
-    "xml2",
-    "z"
-  ],
-  "default_subspecs": "union",
-  "subspecs": [
-    {
-      "name": "union",
-      "vendored_frameworks": [
-        "MSMobAdSDK/union/MSAdSDK.framework",
-        "BaiduMobAdSDK/BaiduMobAdSDK.framework"
-      ],
-      "resources": [
-        "MSMobAdSDK/union/MSBundle.bundle",
-        "BaiduMobAdSDK/BaiduMobAdSDK.bundle"
-      ],
-      "dependencies": {
-        "AFNetworking": [
-
-        ],
-        "Bytedance-UnionAD": [
-          "~>3.1.0.0"
-        ],
-        "GDTMobSDK": [
-          "4.11.9"
-        ]
-      }
-    },
-    {
-      "name": "meishu",
-      "vendored_frameworks": "MSMobAdSDK/meishu/MSAdSDK.framework",
-      "resources": "MSMobAdSDK/meishu/MSBundle.bundle"
-    },
-    {
-      "name": "enai",
-      "vendored_frameworks": [
-        "MSMobAdSDK/enai/MSAdSDK.framework",
-        "BaiduMobAdSDK/BaiduMobAdSDK.framework"
-      ],
-      "resources": [
-        "MSMobAdSDK/enai/MSBundle.bundle",
-        "BaiduMobAdSDK/BaiduMobAdSDK.bundle"
-      ],
-      "dependencies": {
-        "AFNetworking": [
-
-        ]
-      }
-    }
-  ]
-}