Question about react-content-query-online sspkg file

[kbrhoades]

I have spent 2 days trying to get a development environment working with this sample code but to no luck. So I am trying to just upload the pre-built .sspkg file to my tenant. It uploads to the SP App Center, I can install it to a site, it shows in the Site Content, but never shows in the web part list. I did have an older version working up until a few days when it started pulling error (a problem on our end). I assumed I could just upgrade but something just isn't working. Any tips, advice? I have a whole lot of pages I need to get working.

[kbrhoades]

I am seeing the web part now, but receiving an error when I try to use. I downloaded version 1.1 code & just uploaded the pre-packaged .sspkg file to our tenant. I have done this with previous issues with no problems. Any ideas?

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TECHNICAL DETAILS
[SPLoaderError.loadComponentError]:
Failed to load component "ac515af1-4490-4c7b-8191-d49b41b26c5e" (ContentQueryWebPart). Original error: Failed to load URL 'https://localhost:4321/dist/contentQueryStrings_en-us.js' for resource 'contentQueryStrings' in component 'ac515af1-4490-4c7b-8191-d49b41b26c5e' (ContentQueryWebPart). There was a network problem. Make sure that you are running 'gulp serve' and you have run 'gulp trust-dev-cert'.

INNERERROR:
Failed to load URL 'https://localhost:4321/dist/contentQueryStrings_en-us.js' for resource 'contentQueryStrings' in component 'ac515af1-4490-4c7b-8191-d49b41b26c5e' (ContentQueryWebPart). There was a network problem. Make sure that you are running 'gulp serve' and you have run 'gulp trust-dev-cert'.

CALLSTACK:
Error
at t [as constructor] (https://res-1.cdn.office.net/files/sp-client/sp-pages-assembly_en-us_6c97ae89d85f664614b24d840404a1b0.js:70:214295)
at new t (https://res-1.cdn.office.net/files/sp-client/sp-pages-assembly_en-us_6c97ae89d85f664614b24d840404a1b0.js:71:8874)
at Function.e.buildErrorWithVerboseLog (https://res-1.cdn.office.net/files/sp-client/sp-pages-assembly_en-us_6c97ae89d85f664614b24d840404a1b0.js:71:45955)
at Function.e.buildLoadComponentError (https://res-1.cdn.office.net/files/sp-client/sp-pages-assembly_en-us_6c97ae89d85f664614b24d840404a1b0.js:71:42072)
at https://res-1.cdn.office.net/files/sp-client/chunk.systemjs-component-loader_en-us_c13a3fd9296251f1459f.js:1:60147