Construct error

[icyboxs]

> Task :compileJava UP-TO-DATE
> Task :processResources UP-TO-DATE
> Task :classes UP-TO-DATE
> Task :jar UP-TO-DATE

> Task :javadoc FAILED
K:\particlemonkey-1.0.2\src\main\java\com\epaga\particles\influencers\BasicPhysicsInfluencer.java:80: ����: ���� GBK �IJ���ӳ���ַ� (0x92)
    // 𝑟=𝑑�?2(𝑑⋅�?)𝑛
             ^
K:\particlemonkey-1.0.2\src\main\java\com\epaga\particles\influencers\BasicPhysicsInfluencer.java:80: ����: ���� GBK �IJ���ӳ���ַ� (0x9B)
    // 𝑟=𝑑�?2(𝑑⋅�?)𝑛
                     ^
2 ������

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':javadoc'.
> Javadoc generation failed. Generated Javadoc options file (useful for troubleshooting): 'K:\particlemonkey-1.0.2\build\tmp\javadoc\javadoc.options'

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

* Get more help at https://help.gradle.org

Deprecated Gradle features were used in this build, making it incompatible with Gradle 7.0.
Use '--warning-mode all' to show the individual deprecation warnings.
See https://docs.gradle.org/6.3/userguide/command_line_interface.html#sec:command_line_warnings

BUILD FAILED in 901ms
4 actionable tasks: 1 executed, 3 up-to-date

[Jeddic]

Looks like it's some sort of Unicode error maybe? I changed the comment on my local copy to not use any special symbols but I haven't been able to reproduce this error yet.

[icyboxs]

I delete / / 𝑟 = 𝑑 - 2 (𝑑 ⋅ 𝑛) 𝑛 this special characters

BUILD SUCCESSFUL