WinForms designer error variable is undeclared or unassigned

My windows form application form form is giving an error when i change to design mode in visual studio 2015.

It says "The variable 'componentResourceManager' is either undeclared or was never assigned. "

Here is the line with the error

this.pictureBox1.Image = (Image) componentResourceManager.GetObject("pictureBox1.Image");
and here is how i initialized the resourcemanager
1. private void InitializeComponent()
2. {
3. this.components = (IContainer) new Container();
4. ComponentResourceManager componentResourceManager = new ComponentResourceManager(typeof (frmMainMDI));

But when i run the application all the forms load well.What could be the problem?