A summary of the solution to the project with red exclamation point in MyEclipse

Red exclamation point analysis for items in MyEclipse:

The "Red exclamation mark" on the project name indicates that the project's jar package has been introduced with a problem and the jar package needs to be reintroduced. There are two kinds of situations:

1. The package path error pointed to in Classpath in the project:

Workaround:

"1" In the project right click, choose "Bulid Path";

"2" Select Pop-up dialog box "Libraries", at this time the project jar must have the wrong path introduced, the first direct deletion of the introduction of the error, then choose "Add External JARs";

"3" to find the storage path of the jar file, select one or more, directly reintroduced, the project recompile, the red exclamation mark will automatically disappear.

2. Other reasons for importing non-jar files, which need to be seen through the problems panel:

As shown in the following illustration:

In the AXIS2 project shown above, import the Lib package provided by the official website (which contains the. txt file), as shown in the following illustration:

At this point, you can see the following information in MyEclipse:

The solution is:

Right-click Item, under Build Path option, find configure build path, remove introduced. txt

After the removal, the project will be a red exclamation point message, the program can also work correctly.

Therefore, in the second case, be aware that when you import a jar package, do not import the unwanted files into the project path.