eclipse異常報錯：Unable to build: the file dx.jar was not loaded from the SDK folder

由於最近通過SDK-Manager更新了build-tools，當要用到dx.jar這個包時，自動調用最新build-tools中dx.jar，但是運行android項目時Console卻提示： Failed to load C:\Program Files (x86)\Android\android-sdk\build-tools\26.0.0-preview\lib\dx.jar Unable

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