When I was running an application then on pressing a key the following message came: <br><br>X Error of failed request:  BadMatch (invalid parameter attributes)<br>  Major opcode of failed request:  42 (X_SetInputFocus)<br>
  Serial number of failed request:  7345<br>  Current serial number in output stream:  7347<br><br>It seems to be something related to graphics, but can&#39;t understand. After the above error came the application got terminated.<br>
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