My answer may be a late one, but i hope that it'll deals with the actual reason and sure it could be helpful for those who are going to search about the same problem in future.
This type of errors,
1. Android Google Maps Failed to find style 'mapViewStyle' in current theme
2. Failed to find style 'imageButtonStyle' in current theme 
3. Failed to find style 'editTextStyle' in current theme 
4. Failed to find style 'textViewStyle' in current theme 
Anything from the above list it may be,
The ultimate reason is ,
We have selected the unavailable Theme for the layout.
This may cause because of,
- The selected themeis not available inthemes.xmlfile.
- The selected themeis belongs to higher versionsdk, but our current targetsdkis lower one.
This problem mostly happens,
- when you copy the whole layoutfile and try to implement it in yourproject.
a. Your may forgot to copythemes.xmlfile
b. You may have lowertarget  sdk, the originallayoutcreated with highertarget sdk.
The Solutions for this problem are,
(Open and View the layout file in the Graphical Layout View, and look at the top Right corner.
There your themes for the layout have been selected.)
- So click the dropdown list for themeselection and choose the availablethemesaccording to your projectthemesandtargeted sdk themes.
                       (OR)
- If the themeis acustomone , if you are required it , then copy thethemes.xmlfile to your project from the source where you copied thelayout xmlfile.
                       (OR)
- If the themeissdkavailtheme, if you are required it , then change yourtargetaccording to your selectedtheme.
Hope,This might be helpful for somebody.