ContributionsMost RecentMost LikesSolutionsRe: Error: Could not find or load main class com.intel.bts.BtsApp I've been able to make it work on CentOS 7.9. You need Oracle Java and you need to set the JTAG speed down to 8000000 and QUARTUE_ROOTDIR should point to 8.1. Get Java from https://www.oracle.com/cn/java/technologies/javase-jre8-downloads.html Then in Quartus run the JTAG Chain Debugger set the speed to 8000000, run a test and then run this script modified for your system #!/bin/csh -f setenv QUARTUS_ROOTDIR /usr/local/tools/Quartus_18.1/quartus echo "The JTAG speed must be set to 8000000" echo "Run the JTAG Chain Debugger from the Quartus Tools" echo "In the test set the JTAG speed to 8000000, then run the test" set path = (/usr/local/tools/jdk1.8.0_333/bin /usr/local/tools/jdk1.8.0_333/jre ${path}) cd /usr/local/tools/board_test_system java -Xmx256m -jar bts.jar -mode clk Re: Error: Could not find or load main class com.intel.bts.BtsApp I've been able to make some progress by using Oracle Java which I downloaded from https://www.oracle.com/cn/java/technologies/javase-jre8-downloads.html The app starts but it gets the following failures, anyone have any ideas? Starting application on Linux... Jun 09, 2022 12:33:42 PM com.intel.bts.ClientApp attachServer INFO: [/usr/local/tools/Quartus_pro_21.2/quartus/sopc_builder/bin/system-console, --server] Jun 09, 2022 12:33:43 PM com.intel.bts.ClientApp attachServer INFO: Here is the standard output of the command: Jun 09, 2022 12:33:47 PM com.intel.bts.ClientApp attachServer INFO: TCP PORT: 40621 Jun 09, 2022 12:33:55 PM com.intel.bts.JtagInfo createDeviceInfoMapArray INFO: 2 device detected: /devices/1ST280ES(1|2|3)|1ST280EU1|..@2#3-10 /devices/5M(1270ZF324|2210Z)|EPM2210@1#3-10 Jun 09, 2022 12:33:55 PM com.intel.bts.ClientApp getMatchedBoardInfoArray INFO: System Max matched: true, Fpga matched: true Jun 09, 2022 12:33:55 PM com.intel.bts.BtsView startMainStage INFO: Selected JTAG cable is: USB-BlasterII on localhost (3-10) Jun 09, 2022 12:33:55 PM com.intel.bts.BtsView startMainStage INFO: System MAX on index 1, FPGA device on index 0 Jun 09, 2022 12:33:55 PM com.intel.bts.SysConService <init> SEVERE: java.io.IOException: Get master service paths failed! Device: "/devices/5M(1270ZF324|2210Z)|EPM2210@1#3-10" Type: Jun 09, 2022 12:33:55 PM com.intel.bts.HeartBeat init SEVERE: java.io.IOException: Claim master service failed! Type: Path: mem_0 Jun 09, 2022 12:33:55 PM com.intel.bts.InstanceChecker registerInstance INFO: Application Register. Type: Power or Clock GUI Jun 09, 2022 12:33:55 PM com.intel.bts.SysConService <init> SEVERE: java.io.IOException: Get master service paths failed! Device: "/devices/5M(1270ZF324|2210Z)|EPM2210@1#3-10" Type: Jun 09, 2022 12:33:55 PM com.intel.bts.InstanceChecker registerInstance SEVERE: java.io.IOException: Claim master service failed! Type: Path: mem_0 Jun 09, 2022 12:34:10 PM com.intel.bts.SysConService <init> SEVERE: java.io.IOException: Get master service paths failed! Device: "/devices/5M(1270ZF324|2210Z)|EPM2210@1#3-10" Type: Jun 09, 2022 12:34:10 PM com.intel.bts.ClockView init SEVERE: java.io.IOException: Claim master service failed! Type: Path: mem_0 Re: Error: Could not find or load main class com.intel.bts.BtsApp Has anyone made this work on CentOS7.9?