針對的問題有：

（1）a java runtime envrionment or java development kit must be available in order to run eclipse.No java virtual machine was found after seaching the following locations:

解決辦法見網址：https://blog.csdn.net/zp357252539/article/details/47157085

（2）若jdk版本由高降低後，一般會出現問題：Verson1.6.0_45 of the JVM is not suitable for this product Version:1.8 or greater is required。

解決辦法見網址：https://blog.csdn.net/xingkongdeasi/article/details/70224081