BOTH_EXTENSIONS
BOTH_EXTENSIONS: "Cannot upload both .trc and .json files simultaneously."
INVALID_DATA_STRUCTURE
INVALID_DATA_STRUCTURE: "Invalid data structure in uploaded JSON."
INVALID_EXTENSION
INVALID_EXTENSION: "Invalid file extension. Only .trc, .json, .solu, and .csv allowed."
NEITHER_EXTENSIONS
NEITHER_EXTENSIONS: "At least one .trc or .json file required."
SELECT_SOLVER_AMOUNT
SELECT_SOLVER_AMOUNT: "Please select exactly two solvers to compare."
WRONG_EXTENSIONS
WRONG_EXTENSIONS: "No .trc, .json or .solu files found."
Error messages.