WebPart appears to be causing a problem. Cannot use a leading... to exit above the directory.

Sharepoint WebPart appears to be causing a problem. Cannot use a leading... to exit above the directory.

Reason :
 You have given your image path as ... /_layouts/15/images/Solution1/error.png with dots. It has to be removed.
Correct Format : /_layouts/15/images/Solution1/error.png - remove the dots before the _layouts extension. Now the problem has been solved.... I hope it works....