diff --git a/Snap.xcodeproj/project.pbxproj b/Snap.xcodeproj/project.pbxproj
index 9c28aba..d7eec06 100644
--- a/Snap.xcodeproj/project.pbxproj
+++ b/Snap.xcodeproj/project.pbxproj
@@ -32,6 +32,7 @@
 		EECDB39C1AC0CBFF006BBC11 /* View+Snap.swift in Sources */ = {isa = PBXBuildFile; fileRef = EECDB3671AC0C95C006BBC11 /* View+Snap.swift */; };
 		EECDB39D1AC0CC03006BBC11 /* Snap.h in Headers */ = {isa = PBXBuildFile; fileRef = EECDB3661AC0C95C006BBC11 /* Snap.h */; settings = {ATTRIBUTES = (Public, ); }; };
 		EEFCF32C1AD910B900A425FA /* Debugging.swift in Sources */ = {isa = PBXBuildFile; fileRef = EEFCF32B1AD910B900A425FA /* Debugging.swift */; };
+		EEFCF32D1AD9250C00A425FA /* Debugging.swift in Sources */ = {isa = PBXBuildFile; fileRef = EEFCF32B1AD910B900A425FA /* Debugging.swift */; };
 /* End PBXBuildFile section */
 
 /* Begin PBXContainerItemProxy section */
@@ -366,6 +367,7 @@
 			buildActionMask = 2147483647;
 			files = (
 				EECDB3951AC0CBFF006BBC11 /* Constraint.swift in Sources */,
+				EEFCF32D1AD9250C00A425FA /* Debugging.swift in Sources */,
 				EECDB3991AC0CBFF006BBC11 /* ConstraintRelation.swift in Sources */,
 				EECDB39C1AC0CBFF006BBC11 /* View+Snap.swift in Sources */,
 				EECDB39A1AC0CBFF006BBC11 /* EdgeInsets.swift in Sources */,
diff --git a/Source/Constraint.swift b/Source/Constraint.swift
index 020aec2..8ba6784 100644
--- a/Source/Constraint.swift
+++ b/Source/Constraint.swift
@@ -672,7 +672,7 @@ private extension NSLayoutAttribute {
 
 private struct ConstraintInstallInfo {
     
-    weak var view: UIView? = nil
+    weak var view: View? = nil
     let layoutConstraints: NSHashTable
     
 }
diff --git a/Source/Debugging.swift b/Source/Debugging.swift
index 8e6a5f7..581117f 100644
--- a/Source/Debugging.swift
+++ b/Source/Debugging.swift
@@ -106,7 +106,7 @@ private var labelKey = ""
 
 private func descriptionForObject(object: AnyObject) -> String {
     let pointerDescription = NSString(format: "%p", [object])
-    if let object = object as? UIView {
+    if let object = object as? View {
         return "<\(object.dynamicType):\(object.snp_label ?? pointerDescription)>"
     } else if let object = object as? LayoutConstraint {
         return "<\(object.dynamicType):\(object.snp_label ?? pointerDescription)>"