Fix unknown error:unable to build:the file Dx.jar is not loaded from the SDK folder!

Fix unknown Error: to the dx.jar The SDK folder! has recently migrated to Android studio, updated Android After the SDK manager's stuff, open the Eclipse Run project error. Find various solutions and discover:

Android SDK Build-tools version is higher than the Android SDK Platform-tools version, see figure

Since Android Studio sometimes has to use a higher version of Build-tools, it is not possible to simply remove the high version of Build-tools (see Unknown error: to the Dx.jar The SDK folder! workaround).

Finally, find the relevant answer on the stack overflow (Android ADT error , is not loaded from the SDK folder), modify see figure:

Add sdk.buildtools= version of build tools installed on your PC

Can.

Pro-Test:

Target=android-24
sdk.buildtools=25.0.3

Effective!!

Resolve unknown error:unable to build:the file Dx.jar is not loaded from the SDK folder!