Problems Tool Window

This tool window is activated automatically if the Make project automatically option is enabled in Compiler settings. IntelliJ IDEA automatically compiles the project each time project files change on your disk (for example on save or autosave, or when you get the latest project revision from your version control system) and, if any problems are detected, they are displayed in the Problems tool window.

The Problems tool window only displays compiler errors that occurred as the result of the automatic make operation. On each automake, the list is updated with new errors, and old errors are deleted. Note that if automake is enabled, and you launch the make operation manually, the errors from this operation will also be displayed in the Problems tool window as well as in the Messages tool window.

Toolbar

Item	Tooltip and shortcut	Description
	Previous message Ctrl+Alt+Up	Click this button to jump to the previous message.
	Next Message Ctrl+Alt+Down	Click this button to jump to the next message.
	Export to Text File Alt+O	Click this button if you want to export the contents of the tool window to a text file. Specify the name of the target file in the dialog that opens, and click Save.
	Help	Click this button to open IntelliJ IDEA help.
	Expand all Ctrl+NumPad Plus Collapse all Ctrl+NumPad -	Use these buttons to have all nodes expanded or collapsed.
	Autoscroll to Source	If this option is enabled, when you select a message in the Problems tool window, the focus in the editor automatically switches to the corresponding line in the source code.
	Compiler Properties	Click this button to open compiler settings.