Unexpected Error while trying to upload .jmx file into Jmeter

Question

I am using JMeter 5.4 version and I cant upload recorded Blazemeter .jmx file. Below the screenshot for reference

Answer 1

Your screenshot is very nice, however if you need assistance it's better to provide the jmeter.log file contents (and better in textual form rather than as a screenshot), this way the chance of getting a comprehensive answer will be much higher.

The jmeter.log file lives under "bin" folder of your JMeter installation (or in the place where you launched JMeter from in case of using shortcuts), see Logging and error messages user manual chapter for more details.

The majority of "impossible to open .jmx script" problems are connected with missing JMeter Plugin, i.e. BlazeMeter Chrome Extension produces Concurrency Thread Group and if you don't have this plugin installed - you won't be able to open the Test Plan so if you won't be able to figure out the root cause of the failure try installing JMeter Plugins Manager and if the error is due to a missing plugin - it will pop up a window suggesting to install missing plugins or upgrade existing to the appropriate version