diff --git a/vcg/complex/algorithms/edge_collapse.h b/vcg/complex/algorithms/edge_collapse.h
index 074edc6d5..08974263a 100644
--- a/vcg/complex/algorithms/edge_collapse.h
+++ b/vcg/complex/algorithms/edge_collapse.h
@@ -273,8 +273,7 @@ class EdgeCollapser
       // - we prepend that face to the list of the faces incident on v[1]
       for(auto i=es.AV0().begin();i!=es.AV0().end();++i)
       {
-          FaceType  & f = *((*i).f);
-
+          //FaceType  & f = *((*i).f);
           if (preserveFaceEdgeS)
           {
               for (size_t j = 0; j < v2s.size(); ++j)
@@ -302,7 +301,7 @@ class EdgeCollapser
       {
           for (auto i = es1.AV0().begin(); i != es1.AV0().end(); ++i)
           {
-              FaceType  & f = *((*i).f);
+              //FaceType  & f = *((*i).f);
               for (size_t j = 0; j < fan1V2S.size(); ++j)
               {
                   if ((*i).f->V(((*i).z+1)%3) == fan1V2S[j])
diff --git a/vcg/complex/algorithms/local_optimization/tri_edge_collapse_quadric_tex.h b/vcg/complex/algorithms/local_optimization/tri_edge_collapse_quadric_tex.h
index 707196656..4b0695b48 100644
--- a/vcg/complex/algorithms/local_optimization/tri_edge_collapse_quadric_tex.h
+++ b/vcg/complex/algorithms/local_optimization/tri_edge_collapse_quadric_tex.h
@@ -326,8 +326,6 @@ class TriEdgeCollapseQuadricTex: public vcg::tri::TriEdgeCollapse< TriMeshType,
       double QuadErr = qsum.Apply(vv);
 
       //// Rescan faces and compute quality and difference between normals
-      int i;
-
       double qt,   MinQual = 1e100;
       vcg::face::VFIterator<FaceType> x(this->pos.V(0));
 
@@ -335,7 +333,7 @@ class TriEdgeCollapseQuadricTex: public vcg::tri::TriEdgeCollapse< TriMeshType,
                                   // (e.g. max angle) Mincos varia da 1 (normali coincidenti) a
                                   // -1 (normali opposte);
 
-      for(x.F() = v[0]->VFp(), x.I() = v[0]->VFi(),i=0; x.F()!=0; ++x )	// for all faces in v0
+      for(x.F() = v[0]->VFp(), x.I() = v[0]->VFi(); x.F()!=0; ++x )	// for all faces in v0
         if(x.F()->V(0)!=v[1] && x.F()->V(1)!=v[1] && x.F()->V(2)!=v[1] )		// skip faces with v1
         {
           qt= QualityFace(*x.F());
@@ -347,7 +345,7 @@ class TriEdgeCollapseQuadricTex: public vcg::tri::TriEdgeCollapse< TriMeshType,
               assert(!math::IsNAN(ndiff));
               }
         }
-      for(x.F() = v[1]->VFp(), x.I() = v[1]->VFi(),i=0; x.F()!=0; ++x )		// for all faces in v1
+      for(x.F() = v[1]->VFp(), x.I() = v[1]->VFi(); x.F()!=0; ++x )		// for all faces in v1
         if(x.F()->V(0)!=v[0] && x.F()->V(1)!=v[0] && x.F()->V(2)!=v[0] )			// skip faces with v0
         {
           qt= QualityFace(*x.F());
@@ -703,7 +701,7 @@ class TriEdgeCollapseQuadricTex: public vcg::tri::TriEdgeCollapse< TriMeshType,
   v[0] = this->pos.V(0);
   v[1] = this->pos.V(1);
 
-  math::Quadric<double> qsum3 = QH::Qd3(v[0]);
+  vcg::math::Quadric<double> qsum3 = QH::Qd3(v[0]);
   qsum3 += QH::Qd3(v[1]);
 
   ncoords = GetTexCoords(tcoord0_1,tcoord1_1,tcoord0_2,tcoord1_2);
diff --git a/wrap/io_trimesh/import_off.h b/wrap/io_trimesh/import_off.h
index f7fc55f25..170ee9d1a 100644
--- a/wrap/io_trimesh/import_off.h
+++ b/wrap/io_trimesh/import_off.h
@@ -210,7 +210,7 @@ namespace vcg {
 					nVertices = atoi(tokens[0].c_str());
 					nFaces = atoi(tokens[1].c_str());
 					nEdges = atoi(tokens[2].c_str());
-					(void)nEdges; // unused
+					(void)nEdges; // Avoid unused warning
 
 					// dimension is the space dimension of vertices => it must be three(!)
 					if (dimension != 3)
diff --git a/wrap/io_trimesh/import_vmi.h b/wrap/io_trimesh/import_vmi.h
index a8a07b827..d9571f0c8 100644
--- a/wrap/io_trimesh/import_vmi.h
+++ b/wrap/io_trimesh/import_vmi.h
@@ -725,19 +725,16 @@ namespace io {
             /* resize the vector of vertices */
             m.vert.resize(vertSize);
 
-
-            size_t read = 0;
             /* load the vertices */
             if(vertSize>0){
-                read=Read((void*)& m.vert[0],sizeof(VertexType),vertSize );
+                Read((void*)& m.vert[0],sizeof(VertexType),vertSize );
                  LoadVertexOcf<OpenMeshType,VertContainer>(F(),m.vert);
             }
 
-            read = 0;
             m.face.resize(faceSize);
             if(faceSize>0){
                 /* load the faces */
-                read = Read((void*)& m.face[0],sizeof(FaceType),faceSize );
+                Read((void*)& m.face[0],sizeof(FaceType),faceSize );
                 LoadFaceOcf<OpenMeshType,FaceContainer>(m.face);
             }
 			(void)read; // unused