Rascal check crashed unexpectedly with: MultipleKeyat: |std:///Map.rsc|(2659,708,<109,0>,<130,54>)

[BlackHart98]

Context: Please provide context

Exception thrown:

|std:///Map.rsc|:109,0: MultipleKey(
  |file:///Users/pius/Desktop/Dev/adept-base/src/main/rascal/lang/ptl/grammar/Declarations.rsc|(435,7,<25,3>,<25,10>),
  |rascal+constructor:///lang/ptl/grammar/Declarations/funcdef$a44bed97038f1ce8|,
  |rascal+constructor:///lang/ptl/grammar/Declarations/funcdef$7857664476962c59|)

Stacktrace:

	at *** somewhere ***(|std:///Map.rsc|(2659,708,<109,0>,<130,54>))
	at invertUnique(|lib://typepal/analysis/typepal/Collector.rsc|(11366,3,<256,51>,<256,54>))
	at removeTModel(|lib://rascal-core/lang/rascalcore/check/CheckerCommon.rsc|(9118,42,<237,13>,<237,55>))
	at removeOldestTModelFromCache(|lib://rascal-core/lang/rascalcore/check/CheckerCommon.rsc|(9638,28,<253,13>,<253,41>))
	at getTModelForModule(|lib://rascal-core/lang/rascalcore/check/CheckerCommon.rsc|(11020,32,<283,13>,<283,45>))
	at importsAndExtendsAreBinaryCompatible(|lib://rascal-core/lang/rascalcore/check/Import.rsc|(9630,26,<236,30>,<236,56>))
	at rascalTModelForLocs(|lib://rascal-core/lang/rascalcore/check/Checker.rsc|(7532,64,<210,41>,<210,105>))
	at check(|lib://rascal-core/lang/rascalcore/check/Checker.rsc|(19552,64,<475,9>,<475,73>))
	at $shell$(|main://$shell$|)

[DavyLandman]

Have you tried clearing your target folder (details in the release notes)