By mistake I click on "don't show this dialog again" for this message that appear when start the program, so now I can't see the error.
How can I return the appearance of this message?
Please enter the following settings:
Tools=>Options=>Projects and Solutions=>Build and Run
In On Run, when build or deployment errors occur, change the drop-down box to Prompt to launch
After that, if there is a problem with your project, a dialog box will pop up