[BUG] Exception then two project is opened

Assertion failed: The file C:\TOOLS\mps\projects\scc\languages\cl\source_gen

is not under content entry root C:\development\projects\Tengry\rgs-auto.2.2\d-Source

java.lang.Throwable

    at com.intellij.openapi.diagnostic.Logger.assertTrue(Logger.java:64)

    at com.intellij.openapi.roots.impl.ContentEntryImpl.a(ContentEntryImpl.java:90)

    at com.intellij.openapi.roots.impl.ContentEntryImpl.addSourceFolder(ContentEntryImpl.java:4)

    at com.intellij.openapi.roots.impl.ContentEntryImpl.addSourceFolder(ContentEntryImpl.java:82)

    at jetbrains.mps.plugin.MPSSupportHandler$1$1.run(MPSSupportHandler.java:79)

    at com.intellij.openapi.application.impl.ApplicationImpl.runWriteAction(ApplicationImpl.java:137)

    at jetbrains.mps.plugin.MPSSupportHandler$1.run(MPSSupportHandler.java:73)

    at com.intellij.openapi.application.impl.LaterInvocatorEx$1.run(LaterInvocatorEx.java:3)

    at com.intellij.openapi.application.impl.LaterInvocatorEx$FlushQueue.run(LaterInvocatorEx.java:20)

    at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)

    at java.awt.EventQueue.dispatchEvent(EventQueue.java:461)

    at com.intellij.ide.IdeEventQueue.defaultDispatchEvent(IdeEventQueue.java:114)

    at com.intellij.ide.IdeEventQueue.a(IdeEventQueue.java:160)

    at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.java:44)

    at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:242)

    at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:163)

    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:157)

    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:149)

    at java.awt.EventDispatchThread.run(EventDispatchThread.java:110)

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Alexey Efimov, Java Developer

Tops BI