9 files declare their use of TMGMTException in Translation Management Tool 8

ConfigSource.php in sources/tmgmt_config/src/Plugin/tmgmt/Source/ConfigSource.php

ConfigTranslateForm.php in sources/tmgmt_config/src/Form/ConfigTranslateForm.php

ContentEntitySource.php in sources/content/src/Plugin/tmgmt/Source/ContentEntitySource.php

ContentTranslateForm.php in sources/content/src/Form/ContentTranslateForm.php

Job.php in src/Entity/Job.php

JobItem.php in src/Entity/JobItem.php

JobItemAbortForm.php in src/Form/JobItemAbortForm.php

JobItemForm.php in src/Form/JobItemForm.php

LocaleSource.php in sources/locale/src/Plugin/tmgmt/Source/LocaleSource.php