# [Solved Error] Compile script with java in Fiji

**Error: No javac.jar found**
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Because there needs JDK to compile, So we copy ```C:\Program Files\Java\jdk1.8.0_361\lib\tool.jar``` of Java8 to ```C:\fiji-win64\Fiji.app\jars```.

:::spoiler [JDK 8 Download Link](https://www.oracle.com/java/technologies/downloads/#java8-windows)
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:::

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Then, succesfully compile.

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###### tags: `Built Environment`