React Bootstrap application not running - reactjs

I am trying to run my react bootstrap app with the command npm start, however this error appears
#babel/plugin-bugfix-v8-spread-parameters-in-optional-chaining#7.14.5 requires a peer of #babel/core#^7.13.0 but none is installed. You must install peer dependencies yourself.
npm WARN bootstrap#5.0.0-alpha1 requires a peer of popper.js#^1.16.0 but none is installed. You must install peer dependencies yourself.
This is my package.json: https://hastebin.com/saforuvocu.json

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React-webcam not getting added to my react project

I did the following to install react-webcam,
sudo npm install -g --save react-webcam
npm WARN react-webcam#3.0.1 requires a peer of react#>=15.3.0 but none is installed. You must install peer dependencies yourself.
npm WARN react-webcam#3.0.1 requires a peer of react-dom#>=15.3.0 but none is installed. You must install peer dependencies yourself.
+ react-webcam#3.0.1
added 1 package from 1 contributor in 0.351s
but it wasnt added to the dependencies in package.json, So how can I add it to the node modules?

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I'm new to reactjs , while installing the this package I'm getting
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npm install react-router-dom
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React-bootstrap not installing

I'm having issue installing react and react-bootstrap. I used them in the past and everything was working fine. But now, I seem to have an issue installing or updating them.
After the code line: npm install --save react-bootstrap in my terminal, I get these errors:
npm WARN react-bootstrap#0.32.1 requires a peer of react#^0.14.9 || >=15.3.0 but none is installed. You must install peer dependencies yourself.
npm WARN react-bootstrap#0.32.1 requires a peer of react-dom#^0.14.9 || >=15.3.0 but none is installed. You must install peer dependencies yourself.
npm WARN react-prop-types#0.4.0 requires a peer of react#>=0.14.0 but none is installed. You must install peer dependencies yourself.
npm WARN react-transition-group#2.2.1 requires a peer of react#>=15.0.0 but none is installed. You must install peer dependencies yourself.
npm WARN react-transition-group#2.2.1 requires a peer of react-dom#>=15.0.0 but none is installed. You must install peer dependencies yourself.
npm WARN react-overlays#0.8.3 requires a peer of react#^0.14.9 || >=15.3.0 but none is installed. You must install peer dependencies yourself.
npm WARN react-overlays#0.8.3 requires a peer of react-dom#^0.14.9 || >=15.3.0 but none is installed. You must install peer dependencies yourself.
npm WARN prop-types-extra#1.0.1 requires a peer of react#>=0.14.0 but none is installed. You must install peer dependencies yourself.
npm WARN uncontrollable#4.1.0 requires a peer of react#>=0.11.0 but none is installed. You must install peer dependencies yourself.
Even my past react projects aren't working anymore and I can't find in the docs anything about these errors.
Thank you for any help.
I suspect there's an typo in your command line
npm install --save react-booTstrap

npm install errors in jenkins job

I am trying to run npm install command and getting the below error; The same package.JSON works fine in local, but when I try to run the command through jenkins job getting the error.
npm WARN #angular/animations#4.1.2 requires a peer of
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WARN #angular/router#3.3.1 requires a peer of rxjs#5.0.0-rc.4 but none
was installed. npm WARN #swimlane/ngx-datatable#7.1.1 requires a peer
of #angular/common#^4.0.0 but none was installed.
Please help me to fix this issue.
This error message says that you want to use #angular/animations#4.1.2 without #angular/core#4.1.2. This usually happens when you are missing or using different versions of modules.
Solution is, try to update your package.json dependencies and install missing once.

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I'm running a react-native project,and it's package.json dependencies some third-part libraries,but maybe these libraries haven't update for a long time,they require different version of react.
When I npm install, I got warning below:
npm WARN react-native#0.43.3 requires a peer of react#16.0.0-alpha.6 but none was installed.
npm WARN native-base-shoutem-theme#0.1.0 requires a peer of react#>=15.1.0 but none was installed.
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I'm not sure npm could install multiple version in a single project.So how could I fix this problem?

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