问题
My ability to export APKs from Eclipse (Juno for Mac) broke today after doing an update. I can get to the Finish button (after specifying keystore and release passwords), and, when I click that I get a popup that reads "No Build Tools installed in the SDK"
Here's what I have installed now (the Android stuff had previously been 21.*):
Android DDMS 22.0.0.v201305140200--675183 com.android.ide.eclipse.ddms.feature.group The Android Open Source Project
Android Development Tools 22.0.0.v201305140200--675183 com.android.ide.eclipse.adt.feature.group The Android Open Source Project
Android Hierarchy Viewer 22.0.0.v201305140200--675183 com.android.ide.eclipse.hierarchyviewer.feature.group The Android Open Source Project Android Traceview 22.0.0.v201305140200--675183 com.android.ide.eclipse.traceview.feature.group The Android Open Source Project
CollabNet Merge Client 3.0.13 com.collabnet.subversion.merge.feature.feature.group CollabNet
Eclipse IDE for Mobile Developers 1.5.2.20130211-1820 epp.package.mobile null
JNA Library 3.4.0.t20120117_1605 net.java.dev.jna.feature.group null
Subclipse (Required) 1.8.20 org.tigris.subversion.subclipse.feature.group tigris.org
Subclipse Integration for Mylyn 3.x (Optional) 3.0.0 org.tigris.subversion.subclipse.mylyn.feature.group tigris.org
Subversion Client Adapter (Required) 1.8.4 org.tigris.subversion.clientadapter.feature.feature.group tigris.org
Subversion JavaHL Native Library Adapter 1.7.9.1 org.tigris.subversion.clientadapter.javahl.feature.feature.group tigris.org
Subversion Revision Graph 1.1.1 org.tigris.subversion.subclipse.graph.feature.feature.group tigris.org
SVNKit Client Adapter (Not required) 1.7.9.1 org.tigris.subversion.clientadapter.svnkit.feature.feature.group tigris.org
SVNKit Library 1.7.8.r9538_v20130107_2001 org.tmatesoft.svnkit.feature.group TMate Software
Tracer for OpenGL ES 22.0.0.v201305140200--675183 com.android.ide.eclipse.gldebugger.feature.group The Android Open Source Project
回答1:
Lauch the sdk manager and download the new package Android SDK Build-tools which didn't get installed automaticaly when you update to ADT 22
回答2:
I got this error when I downloaded the 64bit version of eclipse and then mistakenly downloaded the 32 bit version of adt. I deleted the adt and downloaded the 64 bit version and it worked.
来源：https://stackoverflow.com/questions/16596886/export-apk-from-eclipse-produces-error-no-build-tools-installed-in-the-sdk