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An IO error occurs when SQLDeveloper connects to Oracle: UndefinedError solution,

Source: Internet
Author: User
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An IO error occurs when SQLDeveloper connects to Oracle: UndefinedError solution,

Overview ~

The following describes the problem:

I believe you have had similar experiences with me and have found many ways to solve this problem. However, the failure will surely be a blow to your heart...

Note: Check whether the latest SQL Developer version can successfully connect to Oracle! In earlier versions, SQL Developer has a high chance of connecting to Oracle.

Solution:

Try to use a lower version of SQL Developer, here to share a sqldeveloper-4.1.2.20.64-x64 for everyone.

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