实际使用过程中出现错误，http提示400

问题一，一定要用那个npm install才能正常运行吗？那这个npm install应该在哪个目录下运行呢？在压缩包解压后所在目录吗？
问题二，运行后提示Error: HTTP 错误：400 - {“detail”:There was an error parsing the body}

版本：easy EDA V3.2.149；PADEN 仿真 V1.0.7

更多的错误信息我不确定在哪里导出

Start by confirming the npm install location for the extracted extension and collecting the complete error output, since the issue does not name a file or test. Reproduce the HTTP 400 response with EasyEDA V3.2.149 and PADEN V1.0.7; done means the installation steps are documented and the body-parsing failure is identified or resolved.

Written by the indexing model from the issue text.