Download assistant JVM error

When i run download assistant, it cause JVM error. My PC environment is WIN10 x64. Anyone can help me?

the installation log says: Constructor threw exception; nested exception is com.fasterxml.jackson.core.JsonParseException: Illegal character ((CTRL-CHAR, code 0)): only regular white space (\r, \n, \t) is allowed between tokens


Welcome to the forum, Gengxin. I’m sorry to hear you’re having problems with SDA. Could you please provide the following information so that I can pass on your report to our SDA team?

  • Exact SDA version
  • Screenshot of the actual error
  • SDA installation logs: C:\ProgramData\Steinberg\Download Assistant\Logs\
  • SDA application logs: C:\Users<USERNAME>\AppData\Local\Steinberg Download Assistant\logs
  • Whether antivirus software is installed and which exactly
  • Any other known firewall, apps or network configuration that might interfere with other applications or network?


The strange thing is a file named C:\Users[myname]\AppData\Local\Steinberg Download Assistant\SDA_downloads.json. File is 9434 long, and every byte of the file is zero.
After i delete everything in folder C:\Users[myname]\AppData\Local\Steinberg Download Assistant, I can run download assistant now. This SDA_download.json may cause the error.!

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