Q.

Test error is shown during deploy.

A.

When Full test is selected as the deploy option, all tests will run in Salesforce (even those of existing Apex Classes and Apex Triggers unrelated to SkyVisualEditor). The above message could be caused by unrelated existing Apex code. If the above error occurs, try deploying with Partial Test or correcting any problems with the existing Apex code and test cases.
[Other deploy error massage examples]

Apex class「SkyEditorClass_20101003093001」does not exist.
- AppExchange SkyVisualEditor package may not be installed. Please verify that it is installed in the destination organization and a license is correctly provided for the deploying user.
The Apex page name is already in use.
- This error will appear if a class of name identical to the current class already exists on the destination Salesforce organization. Please saving the page as a unique name and try to deploying again.

サポートされていないブラウザーです