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Eclipseデバッグ起動時に`ERROR: JDWP Transport dt_socket failed`エラーが出て起動できない

Last updated at Posted at 2020-12-16

以下のようなエラーがコンソールに出力されて起動できなくなる

ERROR: transport error 202: handshake failed - connection prematurally closed
ERROR: JDWP Transport dt_socket failed to initialize, TRANSPORT_INIT(510)
JDWP exit error AGENT_ERROR_TRANSPORT_INIT(197): No transports initialized [./open/src/jdk.jdwp.agent/share/native/libjdwp/debugInit.c:734]

原因はいろいろあるようだが、自分の場合はESETというウィルス対策ソフトのファイヤーウォールが原因。

ESET上に許可するルールを追加してあげたら起動できるようになった。
自分の場合は内向きの一定のポート範囲(50000-65000)を許可してあげた。
(ルールの追加は自己責任でお願いします!)

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