MPLAB X v5.35 requires Java 8 (not Java 11+). Download and install OpenJDK 8 or Oracle JDK 8. Set JAVA_HOME environment variable to point to the JDK 8 directory.
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If you are starting a brand-new design with the latest PIC devices (e.g., PIC18-Q series, PIC32MZ-W), use v6.x. If you are maintaining a legacy product with older chips or debuggers, download MPLAB X IDE v5.35 and freeze your environment. MPLAB X v5
. Note that macOS users on Catalina (10.15) or later may require a specific patch to run this version. Microchip Technology Pros & Cons unassuming. To a layperson