Erro: The designer cannot process the cod at line...

Estou com um pequeno erro

Quando vou copilar minha source da esse erro:

Warning 1 The designer cannot process the code at line 2689:  

base.AutoScaleMode = AutoScaleMode.Font;

The code within the method 'InitializeComponent' is generated by the designer and should not be manually modified. Please remove any changes and try opening the designer again. C:\.........\Form1.cs 2690 0

Codigo da Linha 2689

base.AutoScaleMode = AutoScaleMode.Font;

Obrigado galera.