목록HAPPYHACKING/ERROR SOLVED (11)

SP'S SPARKING

[해결] "this.custRepository" is null

문제 상황 CardController 에서 CustomerRepository를 선언하여 getOne을 사용했는데, 에러 Whitelabel Error Page This application has no explicit mapping for /error, so you are seeing this as a fallback. Wed Dec 08 10:49:43 EST 2021 There was an unexpected error (type=Internal Server Error, status=500). Cannot invoke "com.spring.web.repository.CustomerRepository.getOne(Object)" because "this.custRepository" is null ​ 해..
HAPPYHACKING/ERROR SOLVED 2022. 7. 28. 01:15
[해결] Heroku "npm ERR! Missing: '' from lock file" error

-----> Building on the Heroku-20 stack -----> Using buildpack: heroku/nodejs -----> Node.js app detected -----> Creating runtime environment NPM_CONFIG_LOGLEVEL=error NODE_VERBOSE=false NODE_ENV=production NODE_MODULES_CACHE=true -----> Installing binaries engines.node (package.json): 16.x engines.npm (package.json): unspecified (use default) Resolving node version 16.x... Downloading and instal..
HAPPYHACKING/ERROR SOLVED 2022. 7. 28. 01:14
[해결] Access to XMLHttpRequest 에러

발단 Register 구현하려고 POST 썼는데, I tried to use POST for implementing the 'Register' feature, but 전개 "Access to XMLHttpRequest at 'http://localhost:3000/users/signup' from origin 'http://localhost:3001' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource." 에러가 떴다. 이것저것 찾아보다 I got..
HAPPYHACKING/ERROR SOLVED 2022. 7. 27. 11:57
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