IOException; must be caught or declared to be

Related

• An accessor cannot be declared in an ambient context.
• field ‘’ declared as a function
• cout was not declared in this scope
• unreported exception ServletException; must be caught or declared to be thrown
• cannot invoke initializer for type with no arguments
• error: ‘va_start’ was not declared in this scope
• Unexpected value 'BrowserAnimationsModule' declared by the module 'AppModule'.