请问微信推送signature的是通过字典排序的SHA1加密算法么？

微信小程序新手：app.json中写的pages没有自动生成，下面是报错信息，请各位大佬指点。 我按照网上说使用npm run dev报错： npm ERR! code ENOENT npm ERR! syscall opennpm ERR! path E:\WeChatProjects\miniprogram-1\miniprogram\package.jsonnpm ERR! errno -4058 npm ERR! enoent ENOENT: no such file or directory, open 'E:\WeChatProjects\miniprogram-1\miniprogram\package.json' npm ERR! enoent This is related to npm not being able to find a file. npm ERR! enoentnpm ERR! A complete log of this run can be found in: npm ERR!     C:\Users\Administrator\AppData\Roaming\npm-cache\_logs\2019-10-21T15_31_29_387Z-debug.log log日志 0 info it worked if it ends with ok 1 verbose cli [ 1 verbose cli   'D:\\Program Files\\nodejs\\node.exe', 1 verbose cli   'D:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js', 1 verbose cli   'run', 1 verbose cli   'dev' 1 verbose cli ] 2 info using npm@6.11.3 3 info using node@v12.12.0 4 verbose stack Error: ENOENT: no such file or directory, open 'E:\WeChatProjects\miniprogram-1\miniprogram\package.json' 5 verbose cwd E:\WeChatProjects\miniprogram-1\miniprogram 6 verbose Windows_NT 10.0.17763 7 verbose argv "D:\\Program Files\\nodejs\\node.exe" "D:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js" "run" "dev" 8 verbose node v12.12.0 9 verbose npm  v6.11.3 10 error code ENOENT 11 error syscall open 12 error path E:\WeChatProjects\miniprogram-1\miniprogram\package.json 13 error errno -4058 14 error enoent ENOENT: no such file or directory, open 'E:\WeChatProjects\miniprogram-1\miniprogram\package.json' 15 error enoent This is related to npm not being able to find a file. 16 verbose exit [ -4058, true ] 这是项目目录结构和app.json. [图片]