Ignore linux for version range checks. (#2186)

* Ignore linux for version range checks.

* Don't access null variable. Return null on render if variable is null.

src/renderer/ui/components/generic/PlatformSpecific.js

@@ -3,7 +3,7 @@ import os from 'os';
 import semver from 'semver';
 
 const parsedOSVersion = semver.parse(os.release());
-const osVersion = `${parsedOSVersion.major}.${parsedOSVersion.minor}.${parsedOSVersion.patch}`;
+const osVersion = parsedOSVersion ? `${parsedOSVersion.major}.${parsedOSVersion.minor}.${parsedOSVersion.patch}` : null;
 
 export const semverValidator = (props, propName, componentName) => {
   if (props[propName]) {
@@ -23,6 +23,10 @@ export default class PlatformSpecific extends Component {
     if (process.platform === this.props.platform) {
       if (!this.props.versionRange) return this.props.children;
 
+      if (osVersion === null) {
+        return null;
+      }
+
       if (semver.validRange(this.props.versionRange) && semver.satisfies(osVersion, this.props.versionRange)) {
         return this.props.children;
       }