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ViewsUnknown error: Unable to build: the file dx.jar was not loaded from the SDK folder
When I try to run my Android project on Eclipse ADT, I see this in the Console:
[2017-03-24 15:34:41 - Dex Loader] Failed to load C:\Users\jaimemontoya\android-sdks\build-tools\26.0.0-preview\lib\dx.jar
[2017-03-24 15:34:41 - CouponClub] Unknown error: Unable to build: the file dx.jar was not loaded from the SDK folder!
I am using Eclipse Neon.2 Release (4.6.2):
This is the package configuration I have as seen from the Android SDK Manager:
What I understand from that error is that it failed to load dx.jar because it is trying to load it "from the SDK folder". The message even uses an exclamation mark to say that! What SDK folder is it referring to? I thought in this case "C:\Users\jaimemontoya\android-sdks" would be considered an SDK folder. Do you know where it is expecting to find the "dx.jar" file?
3 answers
Answer question0
None of the answers helped me only my decision fixed the situation:
Fix is to copy
android-sdk/build-tools/25.0.3/lib
to the folder
android-sdk/build-tools/26.0.1/lib
Now all works great!
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Eclipse ADT no more support. So Google break backward compatibility with remove two classes from dx.jar.
You can easy fix it.
- Go to your sdk folder. Navigate to
dx.jarfrom latest build-tools.
For examplebuild-tools\28.0.3\lib - Open
dx.jarin any zip archiver.
I use WinRAR. - Navigate to path
com\android\dx\commandinside archive.
Here you not see filesDxConsole$1.classandDxConsole.class. - Now navigate to
dx.jarfor25.0.3or before. - Again navigate to
com\android\dx\commandinside this archive.
Here you see filesDxConsole$1.classandDxConsole.class. - Copy it from old
dx.jarto newdx.jar. I just drop its from one WinRAR window to another.
All done. Now you can use new dx.jar with Eclipse ADT.
This solution better from replace dx.jar, because you can use new version of the dx.jar.
You need do this steps on every update build-tools.
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I had the same error today and happened to find your post. And after several attempts, I found deleting 26 rc1 Build-tools can help solve the issue.