I downloaded eclipse and created a project but when running it inside the emulator it sends me the following errors and tells me that my project contains errors even when it has none.
[2018-04-06 12:50:14 - Dex Loader] Failed to load C: \ Users \ josealexis \ android-sdks \ build-tools \ 27.0.3 \ lib \ dx.jar [2018-04-06 12:50:14 - MyApplications1] Unknown error: Unable to build: the file dx.jar was not loaded from the SDK folder!