Plugin "MPS Testing" will not load, version incompatible Follow Philip Frank Created February 26, 2019 21:04 (sorry for posting this twice, I posted on the issue tracker first then realized my problem is probably better suiter for the community forum) I'm trying to build a standalone IDE for my language. I need support for Executions, so I added the mpsExecutionsPlugin to my build. When I try to run run built IDE, the Plugin failed to load, saying it dependes on the "MPS Testing" Plugin. So I added this plugin as well, overall the releavant parts of my build configuration look like this: dependencies: mpsStandalone (artifacts location $mps_home) mpsMakePlugin (artifacts location $mps_home/plugins) mpsVcs (artifacts location $mps_home/plugins) mpsExecutionPlugin (artifacts location $mps_home/plugins) mpsDebuggerPlugin (artifacts location $mps_home/plugins) mpsTesting (artifacts location $mps_home/plugins) default layout: folder plugins import mpsVcs::git4idea import mpsStandalone::plugins/mps-core import mpsMakePlugin::mps-make import mpsDebuggerPlugin::mps-debugger-api import mpsDebuggerPlugin::mps-execution-api import mpsDebuggerPlugin::mps-debugger-java import mpsTesting::mps-testing import mpsExecutionPlugin::mps-execution-configurations import mpsExecutionPlugin::mps-execution-languages When I run the IDE, the following error shows up the Event Log: Plugin Error Problems found loading plugins: Plugin "Execution Languages" was not loaded: required plugin "MPS Testing" not installed. Plugin "Execution Configurations" was not loaded: required plugin "MPS Testing" not installed. In the plugin manager, next to the "MPS Testing" entry it says "Incompatible with the current <my IDE name> version". I have tried a couple of things, even set my own IDE version to 183.4, even that did not work.