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FAQ

Bridge Memory/CPU Anomaly​

Script Run Shows Execution Error: com.js.main​

  • Check the storage path of the control center and bridge program. Chinese characters, spaces, and other special characters are prohibited — only letters or numbers are allowed (a Windows limitation)
  • Check whether script files and paths contain Chinese characters

Control Center Crashes​

  • Missing VC runtime libraries — unable to copy OpenCV library files
  • Solution: download the VC library installer from EC's Baidu Netdisk. The file is named WindowsVC安装包 (Windows VC redistributable installer); download the exe and install it
  • If that still does not work, download and install vcyunxingkuheji.rar

JSON.stringify Memory Overflow​

  • If you see the following error, check whether the object being converted contains Java strings. Convert the original string to a JS string. For example: s = s + ""

STACK_TRACE=java.lang.StackOverflowError: stack size 1039KB at java.lang.reflect.Method.invoke(Native Method) at org.mozilla.javascript.MemberBox.invoke(Unknown Source:4) at org.mozilla.javascript.JavaMembers.get(Unknown Source:58) at org.mozilla.javascript.NativeJavaObject.get(Unknown Source:16) at org.mozilla.javascript.ScriptableObject.getProperty(Unknown Source:1) at org.mozilla.javascript.NativeJSON.str(Unknown Source:7) at org.mozilla.javascript.NativeJSON.jo(Unknown Source:63) at org.mozilla.javascript.NativeJSON.str(Unknown Source:237) at org.mozilla.javascript.NativeJSON.jo(Unknown Source:63)

Java-JS Plugin or Hybrid Project Crashes​

  • Confirm JDK is version 1.8
  • Confirm the project does not contain Chinese or other special characters
  • Confirm the project name and path are consistent