Error building Player: Win32Exception: ApplicationName = & #39; E:/adt-20140702/sdk \ tools \ zipalign.exe & #39;, Com, bodybuilding.com

Error building Player: Win32Exception: ApplicationName = 'e:/adt-20140702/sdk \ tools \ zipalign.exe ', Com, bodybuilding.com
1. Cause
After updating sdk, an error is reported. Because the path is different, zipalign.exe is in a different path.
2. Solution
Search for zipalign.exe under sdk.exe. Copy it to the path specified in the error message.

Newbie, new to Unity3d, wants to use Unity3d to publish android apk, but always reports the following error:

This situation may be caused by the sdk upgrade. The new android sdk and the old version have many changes and the structure has changed. In particular, if you use the old version of unity (3.x ), in this case, you can try the sdk of the old version or use the latest unity

Error reported when Unity3D is packaged into Android apk

It may be incompatible. U3D can only support NET.2.0 and cannot convert other libraries to Android platforms.