mysql jdbc 水晶报表,水晶报表-与JDBC的连接失败

I am trying to make a connection to JDBC(JNDI) in Crystal Reports and I get the following error :

Invalid Argument provided.

Details: Java Server startup failure. Please verify the PATH (JDK), CLASSPATH and IORFileLocation properties in the CRConfig.xml file. In addition, please verify you are using JDK 1.4.

I am using the connector : mysql-connector-java-5.1.6-bin.jar, jDK 1.6.

Thank you!

解决方案

I finally found the problem!

The directory associated to IORFileLocation (which is C:\Windows\temp for me) was for some reason readOnly.

So, problem fixed.

Thank you, anyway!